[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:00.12,0:00:02.15,Default,,0000,0000,0000,,Reading an engineering drawing is hard.
Dialogue: 0,0:00:02.36,0:00:06.21,Default,,0000,0000,0000,,It's a foreign language and it takes practice and it takes skill
Dialogue: 0,0:00:06.60,0:00:08.72,Default,,0000,0000,0000,,to know how to read those engineering drawings.
Dialogue: 0,0:00:09.50,0:00:10.88,Default,,0000,0000,0000,,In this particular course,
Dialogue: 0,0:00:11.01,0:00:15.60,Default,,0000,0000,0000,,I know you've been given some complex drawing sets that you need to try to digest.
Dialogue: 0,0:00:15.93,0:00:18.76,Default,,0000,0000,0000,,It can be frustrating and it is definitely difficult.
Dialogue: 0,0:00:19.05,0:00:20.44,Default,,0000,0000,0000,,In this particular video,
Dialogue: 0,0:00:20.69,0:00:23.56,Default,,0000,0000,0000,,I'm gonna take you straight into my iPad and together
Dialogue: 0,0:00:23.77,0:00:27.94,Default,,0000,0000,0000,,we're gonna look around at the engineering drawing for the NES
Dialogue: 0,0:00:28.57,0:00:32.77,Default,,0000,0000,0000,,front cover for the Nintendo game controller for the NES system.
Dialogue: 0,0:00:33.11,0:00:35.75,Default,,0000,0000,0000,,And what I'm going to do is talk through
Dialogue: 0,0:00:36.16,0:00:38.79,Default,,0000,0000,0000,,how to extract essential information
Dialogue: 0,0:00:39.16,0:00:39.59,Default,,0000,0000,0000,,from
Dialogue: 0,0:00:39.80,0:00:41.45,Default,,0000,0000,0000,,the engineering drawing set.
Dialogue: 0,0:00:41.77,0:00:42.11,Default,,0000,0000,0000,,All right,
Dialogue: 0,0:00:42.28,0:00:44.34,Default,,0000,0000,0000,,so just pulling a chair up over here,
Dialogue: 0,0:00:44.60,0:00:46.63,Default,,0000,0000,0000,,looking at the engineering drawing now.
Dialogue: 0,0:00:48.09,0:00:50.98,Default,,0000,0000,0000,,Any time you have an engineering drawing,
Dialogue: 0,0:00:51.17,0:00:55.41,Default,,0000,0000,0000,,you've got to spend time actually reading the engineering drawing
Dialogue: 0,0:00:55.75,0:00:58.64,Default,,0000,0000,0000,,and so what I've what I'm doing right now,
Dialogue: 0,0:00:58.94,0:01:00.45,Default,,0000,0000,0000,,I'm taking a look at a couple of things,
Dialogue: 0,0:01:00.57,0:01:02.89,Default,,0000,0000,0000,,maybe I'll highlight where I'm sort of looking.
Dialogue: 0,0:01:03.37,0:01:05.45,Default,,0000,0000,0000,,First thing I'm doing is I've come down here to
Dialogue: 0,0:01:05.45,0:01:09.62,Default,,0000,0000,0000,,see how many pages or sheets are in this drawing set
Dialogue: 0,0:01:09.93,0:01:11.65,Default,,0000,0000,0000,,that's alerting me to
Dialogue: 0,0:01:12.33,0:01:16.20,Default,,0000,0000,0000,,the extent of the information that I need to be looking for
Dialogue: 0,0:01:16.41,0:01:17.32,Default,,0000,0000,0000,,and through.
Dialogue: 0,0:01:18.64,0:01:22.71,Default,,0000,0000,0000,,I'm also taking a look at what's going on up here with the revision block.
Dialogue: 0,0:01:23.24,0:01:27.03,Default,,0000,0000,0000,,I'm seeing that there was a corrected dimension on a rim groove.
Dialogue: 0,0:01:27.40,0:01:31.55,Default,,0000,0000,0000,,I like to just know what rev I'm looking at and why I'm looking at it.
Dialogue: 0,0:01:32.12,0:01:32.53,Default,,0000,0000,0000,,I
Dialogue: 0,0:01:32.68,0:01:36.60,Default,,0000,0000,0000,,like to start by just sort of glancing through each of the sheets
Dialogue: 0,0:01:37.00,0:01:40.71,Default,,0000,0000,0000,,and understanding what I might be seeing on each of the pages.
Dialogue: 0,0:01:41.20,0:01:41.75,Default,,0000,0000,0000,,In this case,
Dialogue: 0,0:01:41.84,0:01:42.28,Default,,0000,0000,0000,,I
Dialogue: 0,0:01:42.32,0:01:45.44,Default,,0000,0000,0000,,am seeing the front face and I'm seeing the front face again
Dialogue: 0,0:01:45.97,0:01:49.32,Default,,0000,0000,0000,,with a bunch of dimensions here for the whole cutouts,
Dialogue: 0,0:01:49.65,0:01:51.92,Default,,0000,0000,0000,,and then there seems to be this little rim
Dialogue: 0,0:01:52.57,0:01:55.32,Default,,0000,0000,0000,,that goes around this stuff right here,
Dialogue: 0,0:01:55.61,0:01:57.96,Default,,0000,0000,0000,,these seem to be defined in this view.
Dialogue: 0,0:01:58.84,0:01:59.74,Default,,0000,0000,0000,,Right here,
Dialogue: 0,0:02:00.48,0:02:02.72,Default,,0000,0000,0000,,seeing another cross-section and another note.
Dialogue: 0,0:02:03.93,0:02:04.21,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:02:04.31,0:02:06.95,Default,,0000,0000,0000,,on this one, I'm seeing all of the underside
Dialogue: 0,0:02:07.51,0:02:08.14,Default,,0000,0000,0000,,objects
Dialogue: 0,0:02:08.47,0:02:12.30,Default,,0000,0000,0000,,as well as having an ISO view here which is helpful,
Dialogue: 0,0:02:12.55,0:02:14.67,Default,,0000,0000,0000,,so don't have to go all the way back to sheet 1.
Dialogue: 0,0:02:14.99,0:02:17.59,Default,,0000,0000,0000,,I can see that this page is going to be
Dialogue: 0,0:02:17.95,0:02:21.25,Default,,0000,0000,0000,,helping me understand how to create these thin-walled
Dialogue: 0,0:02:21.69,0:02:24.23,Default,,0000,0000,0000,,features that are sort of in these areas.
Dialogue: 0,0:02:25.52,0:02:25.78,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:02:25.90,0:02:28.69,Default,,0000,0000,0000,,and then I see there's at least 3 cross-sections here,
Dialogue: 0,0:02:29.02,0:02:31.49,Default,,0000,0000,0000,,just trying to get a sense for what's in the drawing.
Dialogue: 0,0:02:31.86,0:02:34.53,Default,,0000,0000,0000,,And then here all these screw bosses,
Dialogue: 0,0:02:34.78,0:02:37.07,Default,,0000,0000,0000,,this is a screw boss right here by the way,
Dialogue: 0,0:02:37.44,0:02:40.67,Default,,0000,0000,0000,,all these screw bosses are defined, their location,
Dialogue: 0,0:02:41.14,0:02:42.09,Default,,0000,0000,0000,,their heights,
Dialogue: 0,0:02:42.46,0:02:42.90,Default,,0000,0000,0000,,etc.
Dialogue: 0,0:02:45.01,0:02:47.97,Default,,0000,0000,0000,,And then in the last page of the drawing,
Dialogue: 0,0:02:48.46,0:02:50.01,Default,,0000,0000,0000,,we have this whole,
Dialogue: 0,0:02:50.30,0:02:52.99,Default,,0000,0000,0000,,this whole situation that's going on in detail
Dialogue: 0,0:02:53.02,0:02:53.43,Default,,0000,0000,0000,,'J'
Dialogue: 0,0:02:54.02,0:02:55.53,Default,,0000,0000,0000,,is being defined out
Dialogue: 0,0:02:55.86,0:02:56.89,Default,,0000,0000,0000,,on this sheet.
Dialogue: 0,0:02:57.18,0:02:59.62,Default,,0000,0000,0000,,That's where the cable comes out of the controller.
Dialogue: 0,0:03:00.09,0:03:02.40,Default,,0000,0000,0000,,And so, I've spent about a minute
Dialogue: 0,0:03:02.70,0:03:04.70,Default,,0000,0000,0000,,just glancing through these five sheets.
Dialogue: 0,0:03:04.78,0:03:06.34,Default,,0000,0000,0000,,I have a sense for what's in here.
Dialogue: 0,0:03:06.42,0:03:07.77,Default,,0000,0000,0000,,I haven't absorbed any
Dialogue: 0,0:03:08.14,0:03:09.30,Default,,0000,0000,0000,,deep information yet,
Dialogue: 0,0:03:09.38,0:03:10.17,Default,,0000,0000,0000,,but I have
Dialogue: 0,0:03:10.50,0:03:13.57,Default,,0000,0000,0000,,checked to just sort of see what is there,
Dialogue: 0,0:03:13.78,0:03:14.13,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:03:14.26,0:03:18.45,Default,,0000,0000,0000,,I've also spent a little bit of time glancing at the title block,
Dialogue: 0,0:03:18.90,0:03:20.73,Default,,0000,0000,0000,,particularly in this area,
Dialogue: 0,0:03:21.54,0:03:23.42,Default,,0000,0000,0000,,to understand a couple of things.
Dialogue: 0,0:03:23.97,0:03:26.93,Default,,0000,0000,0000,,This model needs to be created in millimeter units.
Dialogue: 0,0:03:27.25,0:03:29.32,Default,,0000,0000,0000,,The model material
Dialogue: 0,0:03:29.97,0:03:31.34,Default,,0000,0000,0000,,needs to be ABS,
Dialogue: 0,0:03:31.65,0:03:33.68,Default,,0000,0000,0000,,and then there is a texture on it,
Dialogue: 0,0:03:33.77,0:03:35.88,Default,,0000,0000,0000,,MT11010,
Dialogue: 0,0:03:36.41,0:03:39.00,Default,,0000,0000,0000,,and there is a color specification that's given.
Dialogue: 0,0:03:39.41,0:03:41.85,Default,,0000,0000,0000,,So, there's a lot of stuff that's been given right there that's
Dialogue: 0,0:03:41.85,0:03:44.28,Default,,0000,0000,0000,,going to be essential for me as I create this model,
Dialogue: 0,0:03:44.85,0:03:47.36,Default,,0000,0000,0000,,especially as I begin the modeling process,
Dialogue: 0,0:03:47.45,0:03:50.53,Default,,0000,0000,0000,,I've got to absolutely make sure that my units are right,
Dialogue: 0,0:03:51.32,0:03:54.84,Default,,0000,0000,0000,,that can cause a bit of trouble if I'm starting in inches.
Dialogue: 0,0:03:55.55,0:03:58.24,Default,,0000,0000,0000,,And then I need to switch this to millimeters.
Dialogue: 0,0:03:59.12,0:04:01.88,Default,,0000,0000,0000,,The other thing I'm noticing here that's quite helpful for me
Dialogue: 0,0:04:02.28,0:04:06.69,Default,,0000,0000,0000,,is this data right here that shows what the mass
Dialogue: 0,0:04:06.96,0:04:09.11,Default,,0000,0000,0000,,of this finished top cover is.
Dialogue: 0,0:04:09.40,0:04:11.46,Default,,0000,0000,0000,,That's going to be helpful for me as I
Dialogue: 0,0:04:11.84,0:04:14.27,Default,,0000,0000,0000,,analyze my model and go along,
Dialogue: 0,0:04:15.04,0:04:15.35,Default,,0000,0000,0000,,during 
Dialogue: 0,0:04:15.35,0:04:16.24,Default,,0000,0000,0000,,the modeling process,
Dialogue: 0,0:04:16.28,0:04:18.07,Default,,0000,0000,0000,,that's going to be helpful
Dialogue: 0,0:04:18.28,0:04:18.68,Default,,0000,0000,0000,,to me.
Dialogue: 0,0:04:19.36,0:04:19.76,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:04:19.88,0:04:23.69,Default,,0000,0000,0000,,so that's the first part of just sort of absorbing
Dialogue: 0,0:04:24.00,0:04:26.63,Default,,0000,0000,0000,,an engineering drawing set is just to
Dialogue: 0,0:04:26.96,0:04:28.68,Default,,0000,0000,0000,,give it a once over,
Dialogue: 0,0:04:29.75,0:04:33.40,Default,,0000,0000,0000,,then we need to start thinking about how to extract out
Dialogue: 0,0:04:33.83,0:04:37.07,Default,,0000,0000,0000,,the essential information that's in this drawing.
Dialogue: 0,0:04:37.27,0:04:37.45,Default,,0000,0000,0000,,Now,
Dialogue: 0,0:04:37.51,0:04:38.60,Default,,0000,0000,0000,,a couple of tips.
Dialogue: 0,0:04:38.91,0:04:39.96,Default,,0000,0000,0000,,Item number 1
Dialogue: 0,0:04:40.80,0:04:43.35,Default,,0000,0000,0000,,is that engineering drawings are often
Dialogue: 0,0:04:44.04,0:04:47.03,Default,,0000,0000,0000,,created in a sort of hierarchical way,
Dialogue: 0,0:04:47.44,0:04:51.31,Default,,0000,0000,0000,,meaning that the top level information is on page 1
Dialogue: 0,0:04:51.60,0:04:54.38,Default,,0000,0000,0000,,and the more detailed information is later
Dialogue: 0,0:04:54.64,0:04:55.56,Default,,0000,0000,0000,,in the process.
Dialogue: 0,0:04:56.05,0:04:58.35,Default,,0000,0000,0000,,So, if you're getting started with your model,
Dialogue: 0,0:04:58.63,0:05:03.28,Default,,0000,0000,0000,,the first CAD modeling steps are likely going to be coming from
Dialogue: 0,0:05:03.28,0:05:06.55,Default,,0000,0000,0000,,the details found in the first couple of pages of the drawing
Dialogue: 0,0:05:06.80,0:05:08.08,Default,,0000,0000,0000,,versus the latter
Dialogue: 0,0:05:08.44,0:05:09.17,Default,,0000,0000,0000,,pages
Dialogue: 0,0:05:09.40,0:05:10.92,Default,,0000,0000,0000,,or sheets in the drawing.
Dialogue: 0,0:05:11.02,0:05:12.15,Default,,0000,0000,0000,,So, for example,
Dialogue: 0,0:05:12.44,0:05:17.47,Default,,0000,0000,0000,,if I was going to start the process of making this model,
Dialogue: 0,0:05:17.80,0:05:20.19,Default,,0000,0000,0000,,I've got to ask myself some key things like
Dialogue: 0,0:05:20.52,0:05:22.92,Default,,0000,0000,0000,,what is the overall width and what is the overall height,
Dialogue: 0,0:05:23.00,0:05:24.40,Default,,0000,0000,0000,,and what is the overall thickness
Dialogue: 0,0:05:25.07,0:05:27.54,Default,,0000,0000,0000,,of this basic prism
Dialogue: 0,0:05:27.87,0:05:29.90,Default,,0000,0000,0000,,that this thing is made of?
Dialogue: 0,0:05:31.24,0:05:34.85,Default,,0000,0000,0000,,Take a look at the drawing now and see if you can extract that out
Dialogue: 0,0:05:35.48,0:05:36.63,Default,,0000,0000,0000,,in a reasonable
Dialogue: 0,0:05:36.92,0:05:37.39,Default,,0000,0000,0000,,way.
Dialogue: 0,0:05:38.83,0:05:41.74,Default,,0000,0000,0000,,What you should be looking for here is
Dialogue: 0,0:05:42.07,0:05:43.38,Default,,0000,0000,0000,,the largest dimension,
Dialogue: 0,0:05:43.47,0:05:44.70,Default,,0000,0000,0000,,here is my length.
Dialogue: 0,0:05:45.51,0:05:50.75,Default,,0000,0000,0000,,My next dimension here is my total sort of height as it would appear in this
Dialogue: 0,0:05:51.63,0:05:51.87,Default,,0000,0000,0000,,or
Dialogue: 0,0:05:51.99,0:05:52.59,Default,,0000,0000,0000,,the width,
Dialogue: 0,0:05:52.67,0:05:53.77,Default,,0000,0000,0000,,I guess we could say
Dialogue: 0,0:05:54.11,0:05:55.10,Default,,0000,0000,0000,,in this view,
Dialogue: 0,0:05:55.43,0:05:58.14,Default,,0000,0000,0000,,and then I have the height or the thickness
Dialogue: 0,0:05:58.88,0:05:59.88,Default,,0000,0000,0000,,of this
Dialogue: 0,0:06:00.24,0:06:02.51,Default,,0000,0000,0000,,overall part shown right here.
Dialogue: 0,0:06:02.84,0:06:07.95,Default,,0000,0000,0000,,These three dimensions are essential for me as I get started in my CAD model
Dialogue: 0,0:06:08.32,0:06:10.41,Default,,0000,0000,0000,,because I'm gonna start by creating
Dialogue: 0,0:06:10.84,0:06:15.70,Default,,0000,0000,0000,,some chunk of material out of which I will cut out a bunch of holes and other stuff
Dialogue: 0,0:06:16.04,0:06:16.75,Default,,0000,0000,0000,,like this
Dialogue: 0,0:06:17.24,0:06:19.03,Default,,0000,0000,0000,,and these three dimensions,
Dialogue: 0,0:06:19.29,0:06:20.12,Default,,0000,0000,0000,,the width.
Dialogue: 0,0:06:21.00,0:06:21.47,Default,,0000,0000,0000,,Excuse me,
Dialogue: 0,0:06:21.48,0:06:22.03,Default,,0000,0000,0000,,the length,
Dialogue: 0,0:06:22.18,0:06:22.83,Default,,0000,0000,0000,,the width,
Dialogue: 0,0:06:22.92,0:06:23.89,Default,,0000,0000,0000,,and the height
Dialogue: 0,0:06:24.24,0:06:25.75,Default,,0000,0000,0000,,are super helpful.
Dialogue: 0,0:06:26.04,0:06:30.92,Default,,0000,0000,0000,,But I can also notice a really important thing that's going on here and that is that
Dialogue: 0,0:06:31.28,0:06:32.32,Default,,0000,0000,0000,,we
Dialogue: 0,0:06:32.72,0:06:33.95,Default,,0000,0000,0000,,have
Dialogue: 0,0:06:36.07,0:06:36.97,Default,,0000,0000,0000,,basically
Dialogue: 0,0:06:36.97,0:06:37.58,Default,,0000,0000,0000,,like
Dialogue: 0,0:06:37.78,0:06:38.94,Default,,0000,0000,0000,,a trapezoidal
Dialogue: 0,0:06:39.47,0:06:40.10,Default,,0000,0000,0000,,prism
Dialogue: 0,0:06:40.35,0:06:41.22,Default,,0000,0000,0000,,in this shape.
Dialogue: 0,0:06:41.43,0:06:41.79,Default,,0000,0000,0000,,In other words,
Dialogue: 0,0:06:41.82,0:06:42.98,Default,,0000,0000,0000,,they do not have
Dialogue: 0,0:06:43.23,0:06:44.35,Default,,0000,0000,0000,,vertical walls.
Dialogue: 0,0:06:45.46,0:06:49.78,Default,,0000,0000,0000,,And this means I'm going to have to start my CAD work in a particular way,
Dialogue: 0,0:06:50.19,0:06:53.19,Default,,0000,0000,0000,,because the first piece that I wanna pop in here
Dialogue: 0,0:06:54.47,0:06:56.30,Default,,0000,0000,0000,,that isn't actually going to be
Dialogue: 0,0:06:56.55,0:06:57.67,Default,,0000,0000,0000,,a rectangular prism,
Dialogue: 0,0:06:57.72,0:07:00.62,Default,,0000,0000,0000,,it's going to be more like a trapezoidal prism,
Dialogue: 0,0:07:00.91,0:07:02.84,Default,,0000,0000,0000,,and I have to start to understand
Dialogue: 0,0:07:03.43,0:07:04.33,Default,,0000,0000,0000,,that shape.
Dialogue: 0,0:07:04.63,0:07:06.78,Default,,0000,0000,0000,,This is what it looks like from the right side,
Dialogue: 0,0:07:07.17,0:07:09.80,Default,,0000,0000,0000,,also from the front view right here,
Dialogue: 0,0:07:10.11,0:07:11.62,Default,,0000,0000,0000,,we're seeing the same thing,
Dialogue: 0,0:07:11.79,0:07:12.01,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:07:12.11,0:07:13.06,Default,,0000,0000,0000,,we're seeing a
Dialogue: 0,0:07:13.35,0:07:14.48,Default,,0000,0000,0000,,trapezoidal
Dialogue: 0,0:07:14.83,0:07:16.59,Default,,0000,0000,0000,,inward sort of
Dialogue: 0,0:07:17.93,0:07:20.04,Default,,0000,0000,0000,,slanting to those walls.
Dialogue: 0,0:07:20.21,0:07:21.08,Default,,0000,0000,0000,,So, this is a really,
Dialogue: 0,0:07:21.32,0:07:24.24,Default,,0000,0000,0000,,really important bit of information to extract from
Dialogue: 0,0:07:24.57,0:07:25.37,Default,,0000,0000,0000,,this drawing set.
Dialogue: 0,0:07:25.53,0:07:25.72,Default,,0000,0000,0000,,Now,
Dialogue: 0,0:07:25.77,0:07:28.61,Default,,0000,0000,0000,,the major question is how much does it slant in?
Dialogue: 0,0:07:29.48,0:07:29.99,Default,,0000,0000,0000,,Well,
Dialogue: 0,0:07:30.20,0:07:32.83,Default,,0000,0000,0000,,we luckily have this detail view right here
Dialogue: 0,0:07:33.12,0:07:37.75,Default,,0000,0000,0000,,that is telling us that something important is going on in this section,
Dialogue: 0,0:07:38.08,0:07:40.63,Default,,0000,0000,0000,,and we can go find that in Detail A.
Dialogue: 0,0:07:41.04,0:07:42.04,Default,,0000,0000,0000,,Let's go find Detail A.
Dialogue: 0,0:07:42.12,0:07:43.19,Default,,0000,0000,0000,,Here's Detail A.
Dialogue: 0,0:07:44.57,0:07:44.95,Default,,0000,0000,0000,,And
Dialogue: 0,0:07:45.15,0:07:46.80,Default,,0000,0000,0000,,Detail A has
Dialogue: 0,0:07:47.29,0:07:48.82,Default,,0000,0000,0000,,some important information and frankly,
Dialogue: 0,0:07:48.93,0:07:50.76,Default,,0000,0000,0000,,we need to step back just a second
Dialogue: 0,0:07:51.13,0:07:51.84,Default,,0000,0000,0000,,and say,
Dialogue: 0,0:07:52.87,0:07:56.70,Default,,0000,0000,0000,,"One of the first things we have to do whenever we start the drawing,
Dialogue: 0,0:07:56.71,0:07:57.23,Default,,0000,0000,0000,,reading,
Dialogue: 0,0:07:57.31,0:07:58.02,Default,,0000,0000,0000,,the drawing,
Dialogue: 0,0:07:58.15,0:07:58.56,Default,,0000,0000,0000,,the
Dialogue: 0,0:07:58.59,0:08:02.54,Default,,0000,0000,0000,,reading of the drawing is we need to really pay attention to the notes.
Dialogue: 0,0:08:02.91,0:08:04.42,Default,,0000,0000,0000,,The notes are there to help,
Dialogue: 0,0:08:04.71,0:08:04.90,Default,,0000,0000,0000,,like,
Dialogue: 0,0:08:04.91,0:08:07.50,Default,,0000,0000,0000,,to guide and to give direction and to help,
Dialogue: 0,0:08:07.83,0:08:09.16,Default,,0000,0000,0000,,you know what
Dialogue: 0,0:08:09.55,0:08:11.97,Default,,0000,0000,0000,,the creator of the drawing wanted you to know.
Dialogue: 0,0:08:12.47,0:08:13.60,Default,,0000,0000,0000,,So, we can see,
Dialogue: 0,0:08:13.63,0:08:14.15,Default,,0000,0000,0000,,for example,
Dialogue: 0,0:08:14.31,0:08:16.30,Default,,0000,0000,0000,,hidden lines are removed for clarity.
Dialogue: 0,0:08:16.88,0:08:17.61,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:08:17.81,0:08:20.92,Default,,0000,0000,0000,,there's a virtual sharp in Detail A that's
Dialogue: 0,0:08:20.92,0:08:23.64,Default,,0000,0000,0000,,interesting because we're looking at Detail A right now,
Dialogue: 0,0:08:24.05,0:08:27.12,Default,,0000,0000,0000,,and there's something about detail A that's being told to us.
Dialogue: 0,0:08:27.73,0:08:30.55,Default,,0000,0000,0000,,General wall thicknesses are shown in section AA.
Dialogue: 0,0:08:30.57,0:08:30.65,Default,,0000,0000,0000,,Well,
Dialogue: 0,0:08:30.81,0:08:32.40,Default,,0000,0000,0000,,here's section AA,
Dialogue: 0,0:08:32.82,0:08:33.49,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:08:33.93,0:08:37.77,Default,,0000,0000,0000,,And section AA is shown as a slice and not a full cross-section.
Dialogue: 0,0:08:38.26,0:08:39.70,Default,,0000,0000,0000,,If it was a full cross-section,
Dialogue: 0,0:08:39.74,0:08:40.98,Default,,0000,0000,0000,,what this would mean
Dialogue: 0,0:08:41.26,0:08:43.13,Default,,0000,0000,0000,,is that we would actually see
Dialogue: 0,0:08:43.46,0:08:45.66,Default,,0000,0000,0000,,the rest of the object here
Dialogue: 0,0:08:45.90,0:08:46.94,Default,,0000,0000,0000,,without a crosshatch,
Dialogue: 0,0:08:47.02,0:08:48.34,Default,,0000,0000,0000,,but we'd be able to see,
Dialogue: 0,0:08:48.70,0:08:48.82,Default,,0000,0000,0000,,you know,
Dialogue: 0,0:08:48.94,0:08:51.33,Default,,0000,0000,0000,,there'd be like posts and some other stuff,
Dialogue: 0,0:08:51.70,0:08:52.10,Default,,0000,0000,0000,,and it 
Dialogue: 0,0:08:52.14,0:08:53.57,Default,,0000,0000,0000,,would get quite cluttered.
Dialogue: 0,0:08:53.66,0:08:54.57,Default,,0000,0000,0000,,So, in this case,
Dialogue: 0,0:08:54.94,0:08:55.99,Default,,0000,0000,0000,,for clarity's sake,
Dialogue: 0,0:08:56.14,0:08:59.21,Default,,0000,0000,0000,,section AA was provided as only a slice.
Dialogue: 0,0:09:00.54,0:09:01.22,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:09:01.47,0:09:03.22,Default,,0000,0000,0000,,now what is a virtual sharp?
Dialogue: 0,0:09:03.30,0:09:03.55,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:09:03.59,0:09:07.42,Default,,0000,0000,0000,,we need to go understand what a virtual sharp is. Because a virtual sharp
Dialogue: 0,0:09:07.72,0:09:10.18,Default,,0000,0000,0000,,is appearing in detail A
Dialogue: 0,0:09:10.51,0:09:12.30,Default,,0000,0000,0000,,and this is an important
Dialogue: 0,0:09:12.67,0:09:15.98,Default,,0000,0000,0000,,part of knowing how the trapezoidal prism
Dialogue: 0,0:09:16.27,0:09:17.98,Default,,0000,0000,0000,,geometry should be made.
Dialogue: 0,0:09:18.47,0:09:20.43,Default,,0000,0000,0000,,So, this little thing that we have here,
Dialogue: 0,0:09:20.47,0:09:22.70,Default,,0000,0000,0000,,I'm going to point to it right now before I draw on it,
Dialogue: 0,0:09:22.95,0:09:24.58,Default,,0000,0000,0000,,that little plus that's there
Dialogue: 0,0:09:24.87,0:09:26.47,Default,,0000,0000,0000,,is the virtual sharp.
Dialogue: 0,0:09:26.94,0:09:28.33,Default,,0000,0000,0000,,What this means is
Dialogue: 0,0:09:28.70,0:09:30.89,Default,,0000,0000,0000,,that if this object
Dialogue: 0,0:09:31.50,0:09:33.11,Default,,0000,0000,0000,,did not have a fillet
Dialogue: 0,0:09:33.79,0:09:35.08,Default,,0000,0000,0000,,in its corner,
Dialogue: 0,0:09:35.25,0:09:35.65,Default,,0000,0000,0000,,right up there,
Dialogue: 0,0:09:35.73,0:09:37.36,Default,,0000,0000,0000,,there's a fillet right in there.
Dialogue: 0,0:09:37.77,0:09:39.20,Default,,0000,0000,0000,,It would have a sharp point,
Dialogue: 0,0:09:39.53,0:09:41.28,Default,,0000,0000,0000,,like what we're seeing right over here.
Dialogue: 0,0:09:41.57,0:09:43.36,Default,,0000,0000,0000,,And that sharp point
Dialogue: 0,0:09:43.69,0:09:46.01,Default,,0000,0000,0000,,would be something that could be dimension too.
Dialogue: 0,0:09:47.53,0:09:50.69,Default,,0000,0000,0000,,And when that sharp point goes away,
Dialogue: 0,0:09:51.02,0:09:54.82,Default,,0000,0000,0000,,such as when there's a filet that's added to something like this,
Dialogue: 0,0:09:57.02,0:09:57.55,Default,,0000,0000,0000,,then
Dialogue: 0,0:09:57.76,0:09:57.81,Default,,0000,0000,0000,,a
Dialogue: 0,0:09:57.76,0:09:59.75,Default,,0000,0000,0000,,marker can go right here.
Dialogue: 0,0:10:00.00,0:10:02.07,Default,,0000,0000,0000,,Let's see if I can switch this color
Dialogue: 0,0:10:02.52,0:10:03.34,Default,,0000,0000,0000,,and
Dialogue: 0,0:10:03.64,0:10:05.19,Default,,0000,0000,0000,,make this even more obvious,
Dialogue: 0,0:10:05.64,0:10:06.19,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:10:06.52,0:10:11.18,Default,,0000,0000,0000,,Then a marker can go right there exactly where the sharp point would have been,
Dialogue: 0,0:10:11.48,0:10:11.82,Default,,0000,0000,0000,,therefore
Dialogue: 0,0:10:11.84,0:10:13.61,Default,,0000,0000,0000,,it is called a virtual sharp.
Dialogue: 0,0:10:13.92,0:10:16.15,Default,,0000,0000,0000,,That can be valuable because
Dialogue: 0,0:10:16.44,0:10:18.29,Default,,0000,0000,0000,,if we want to dimension
Dialogue: 0,0:10:18.96,0:10:19.72,Default,,0000,0000,0000,,to that
Dialogue: 0,0:10:20.21,0:10:22.18,Default,,0000,0000,0000,,we can and we do the dimension to
Dialogue: 0,0:10:22.18,0:10:24.89,Default,,0000,0000,0000,,the virtual sharp and that's actually what's going on
Dialogue: 0,0:10:25.25,0:10:25.73,Default,,0000,0000,0000,,right here.
Dialogue: 0,0:10:25.85,0:10:28.00,Default,,0000,0000,0000,,This 0.85 typical
Dialogue: 0,0:10:28.37,0:10:30.59,Default,,0000,0000,0000,,is going to this virtual sharp.
Dialogue: 0,0:10:30.85,0:10:32.28,Default,,0000,0000,0000,,That helps us to know
Dialogue: 0,0:10:32.65,0:10:33.77,Default,,0000,0000,0000,,what size
Dialogue: 0,0:10:36.35,0:10:37.82,Default,,0000,0000,0000,,that trapezoidal prism
Dialogue: 0,0:10:38.07,0:10:39.10,Default,,0000,0000,0000,,is made at.
Dialogue: 0,0:10:39.73,0:10:39.87,Default,,0000,0000,0000,,All right,
Dialogue: 0,0:10:40.04,0:10:44.55,Default,,0000,0000,0000,,so I'm seeing those 3 or 4 critical dimensions that help
Dialogue: 0,0:10:44.55,0:10:48.42,Default,,0000,0000,0000,,me get my first chunk of material into the CAD system.
Dialogue: 0,0:10:49.07,0:10:52.58,Default,,0000,0000,0000,,Once I have that basic chunk of material into the CAD system,
Dialogue: 0,0:10:52.91,0:10:55.74,Default,,0000,0000,0000,,it's a matter of me starting to chip away
Dialogue: 0,0:10:56.03,0:10:57.20,Default,,0000,0000,0000,,at producing
Dialogue: 0,0:10:57.55,0:10:59.94,Default,,0000,0000,0000,,the geometries associated with that.
Dialogue: 0,0:11:00.50,0:11:00.94,Default,,0000,0000,0000,,So,
Dialogue: 0,0:11:01.14,0:11:01.81,Default,,0000,0000,0000,,I
Dialogue: 0,0:11:01.82,0:11:03.10,Default,,0000,0000,0000,,can see that
Dialogue: 0,0:11:03.62,0:11:04.89,Default,,0000,0000,0000,,because there is
Dialogue: 0,0:11:05.34,0:11:07.61,Default,,0000,0000,0000,,some attempt to describe,
Dialogue: 0,0:11:07.78,0:11:09.53,Default,,0000,0000,0000,,I'll switch colors here for a second,
Dialogue: 0,0:11:09.78,0:11:13.73,Default,,0000,0000,0000,,there's some attempt to describe a general wall thickness,
Dialogue: 0,0:11:14.14,0:11:17.05,Default,,0000,0000,0000,,it's most likely that a shell is used
Dialogue: 0,0:11:17.38,0:11:18.78,Default,,0000,0000,0000,,somewhere in this set,
Dialogue: 0,0:11:18.82,0:11:21.47,Default,,0000,0000,0000,,because the shell gives us a nice constant
Dialogue: 0,0:11:21.91,0:11:26.39,Default,,0000,0000,0000,,wall thickness, and I can see that the wall thickness is shown in section AA,
Dialogue: 0,0:11:26.78,0:11:27.54,Default,,0000,0000,0000,,(whereas it's shown),
Dialogue: 0,0:11:27.58,0:11:28.65,Default,,0000,0000,0000,,it's right here.
Dialogue: 0,0:11:29.52,0:11:30.12,Default,,0000,0000,0000,,OK.
Dialogue: 0,0:11:31.16,0:11:33.43,Default,,0000,0000,0000,,If we're going to look at something that's called general.
Dialogue: 0,0:11:34.91,0:11:36.94,Default,,0000,0000,0000,,Then we're gonna look for something that's called typical
Dialogue: 0,0:11:38.00,0:11:39.84,Default,,0000,0000,0000,,because typical 'TYP'
Dialogue: 0,0:11:40.20,0:11:41.14,Default,,0000,0000,0000,,means that
Dialogue: 0,0:11:41.51,0:11:42.94,Default,,0000,0000,0000,,this same thickness
Dialogue: 0,0:11:43.51,0:11:44.35,Default,,0000,0000,0000,,that's here
Dialogue: 0,0:11:44.67,0:11:49.67,Default,,0000,0000,0000,,also exists here, and also exists here, and also exists here, and also exists here, and
Dialogue: 0,0:11:49.99,0:11:51.28,Default,,0000,0000,0000,,here, and here
Dialogue: 0,0:11:51.87,0:11:52.40,Default,,0000,0000,0000,,and
Dialogue: 0,0:11:52.55,0:11:53.31,Default,,0000,0000,0000,,throughout.
Dialogue: 0,0:11:54.23,0:11:55.70,Default,,0000,0000,0000,,It's a little different over here,
Dialogue: 0,0:11:55.78,0:11:56.20,Default,,0000,0000,0000,,but
Dialogue: 0,0:11:56.46,0:11:57.37,Default,,0000,0000,0000,,nevertheless,
Dialogue: 0,0:11:57.74,0:11:58.62,Default,,0000,0000,0000,,everywhere
Dialogue: 0,0:11:59.45,0:12:02.04,Default,,0000,0000,0000,,in those areas, we would have constant wall thickness.
Dialogue: 0,0:12:02.11,0:12:02.47,Default,,0000,0000,0000,,So,
Dialogue: 0,0:12:02.95,0:12:03.67,Default,,0000,0000,0000,,what have I done?
Dialogue: 0,0:12:03.75,0:12:05.27,Default,,0000,0000,0000,,I have gone into my drawing.
Dialogue: 0,0:12:05.31,0:12:09.30,Default,,0000,0000,0000,,I've tried to figure out how am I going to create my first basic shape.
Dialogue: 0,0:12:09.79,0:12:12.94,Default,,0000,0000,0000,,I've looked at the drawing to pick out
Dialogue: 0,0:12:13.30,0:12:16.87,Default,,0000,0000,0000,,the, the dimensions that are most likely the
Dialogue: 0,0:12:16.87,0:12:19.66,Default,,0000,0000,0000,,ones that I need to create that basic geometry.
Dialogue: 0,0:12:20.27,0:12:20.62,Default,,0000,0000,0000,,Now
Dialogue: 0,0:12:20.96,0:12:22.12,Default,,0000,0000,0000,,it's worth knowing
Dialogue: 0,0:12:22.59,0:12:26.30,Default,,0000,0000,0000,,that there's a lot of information here that's not needed yet.
Dialogue: 0,0:12:27.28,0:12:27.52,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:12:27.60,0:12:30.95,Default,,0000,0000,0000,,so I'm trying to build out my basic trapezoidal prism.
Dialogue: 0,0:12:31.30,0:12:33.52,Default,,0000,0000,0000,,There's some stuff I just don't have to worry about,
Dialogue: 0,0:12:33.56,0:12:33.80,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:12:33.84,0:12:35.43,Default,,0000,0000,0000,,I don't have to worry about,
Dialogue: 0,0:12:35.72,0:12:36.00,Default,,0000,0000,0000,,you know,
Dialogue: 0,0:12:36.12,0:12:36.88,Default,,0000,0000,0000,,this dimension,
Dialogue: 0,0:12:36.94,0:12:37.44,Default,,0000,0000,0000,,for example,
Dialogue: 0,0:12:37.48,0:12:38.63,Default,,0000,0000,0000,,or this dimension.
Dialogue: 0,0:12:38.92,0:12:40.59,Default,,0000,0000,0000,,Those are going to come later.
Dialogue: 0,0:12:40.88,0:12:42.80,Default,,0000,0000,0000,,And the reason why this is important is because
Dialogue: 0,0:12:42.80,0:12:45.75,Default,,0000,0000,0000,,there's a lot of information on these drawing sets
Dialogue: 0,0:12:46.14,0:12:46.75,Default,,0000,0000,0000,,and
Dialogue: 0,0:12:47.20,0:12:49.48,Default,,0000,0000,0000,,you have to be able to start to pick out what
Dialogue: 0,0:12:49.48,0:12:53.01,Default,,0000,0000,0000,,is the important information and what is the not important information
Dialogue: 0,0:12:53.32,0:12:55.24,Default,,0000,0000,0000,,for the given step that you're working on.
Dialogue: 0,0:12:55.63,0:12:59.54,Default,,0000,0000,0000,,And if you had a CAD strategy and your CAD strategy looked something like this,
Dialogue: 0,0:12:59.88,0:13:01.19,Default,,0000,0000,0000,,like you're going to
Dialogue: 0,0:13:01.83,0:13:04.95,Default,,0000,0000,0000,,draw one plane and then I'm gonna switch colors here for a second.
Dialogue: 0,0:13:05.12,0:13:07.03,Default,,0000,0000,0000,,You're gonna draw another plane like this,
Dialogue: 0,0:13:07.20,0:13:07.70,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:13:08.07,0:13:11.02,Default,,0000,0000,0000,,And then you are going to extrude between them
Dialogue: 0,0:13:11.28,0:13:14.27,Default,,0000,0000,0000,,and create some sort of trapezoidal prism.
Dialogue: 0,0:13:14.56,0:13:17.51,Default,,0000,0000,0000,,You would need to know how to first draw
Dialogue: 0,0:13:18.20,0:13:21.56,Default,,0000,0000,0000,,one of those sketches and then how to draw the other sketch,
Dialogue: 0,0:13:21.90,0:13:23.63,Default,,0000,0000,0000,,and what those dimensions would be.
Dialogue: 0,0:13:23.71,0:13:23.95,Default,,0000,0000,0000,,So, you're 
Dialogue: 0,0:13:25.01,0:13:27.79,Default,,0000,0000,0000,,looking for those in the drawing set.
Dialogue: 0,0:13:28.72,0:13:29.35,Default,,0000,0000,0000,,All right,
Dialogue: 0,0:13:29.48,0:13:30.23,Default,,0000,0000,0000,,now,
Dialogue: 0,0:13:30.56,0:13:31.33,Default,,0000,0000,0000,,what
Dialogue: 0,0:13:31.73,0:13:32.72,Default,,0000,0000,0000,,else 
Dialogue: 0,0:13:32.80,0:13:33.84,Default,,0000,0000,0000,,should we say about this,
Dialogue: 0,0:13:33.88,0:13:34.51,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:13:37.26,0:13:38.61,Default,,0000,0000,0000,,It's important to know,
Dialogue: 0,0:13:38.94,0:13:40.39,Default,,0000,0000,0000,,while you are
Dialogue: 0,0:13:40.78,0:13:44.49,Default,,0000,0000,0000,,looking around drawings for particular bits of information,
Dialogue: 0,0:13:44.82,0:13:47.53,Default,,0000,0000,0000,,there's a couple of rules that you should know about.
Dialogue: 0,0:13:47.98,0:13:48.78,Default,,0000,0000,0000,,Number one,
Dialogue: 0,0:13:50.41,0:13:50.61,Default,,0000,0000,0000,,well,
Dialogue: 0,0:13:50.77,0:13:53.00,Default,,0000,0000,0000,,we don't have any hidden lines on this drawing,
Dialogue: 0,0:13:53.01,0:13:55.25,Default,,0000,0000,0000,,and that's actually good for you right now,
Dialogue: 0,0:13:55.67,0:13:55.91,Default,,0000,0000,0000,,but
Dialogue: 0,0:13:56.01,0:13:58.04,Default,,0000,0000,0000,,you should know that 
Dialogue: 0,0:13:58.13,0:14:01.37,Default,,0000,0000,0000,,you're not allowed to dimension to hidden lines on drawings.
Dialogue: 0,0:14:01.45,0:14:03.64,Default,,0000,0000,0000,,This is part of the ASME standards.
Dialogue: 0,0:14:03.89,0:14:06.44,Default,,0000,0000,0000,,You're not allowed to dimension to a hidden line,
Dialogue: 0,0:14:06.73,0:14:08.45,Default,,0000,0000,0000,,and that would mean that if I wanted to know,
Dialogue: 0,0:14:08.51,0:14:09.40,Default,,0000,0000,0000,,for example,
Dialogue: 0,0:14:09.73,0:14:11.64,Default,,0000,0000,0000,,how tall is this post?
Dialogue: 0,0:14:12.05,0:14:14.01,Default,,0000,0000,0000,,Can we go look at the isometric view for a
Dialogue: 0,0:14:14.01,0:14:15.57,Default,,0000,0000,0000,,second so we can know what we're talking about.
Dialogue: 0,0:14:15.70,0:14:17.61,Default,,0000,0000,0000,,I want to know how high is that post.
Dialogue: 0,0:14:18.29,0:14:21.45,Default,,0000,0000,0000,,There's only one way for me to know this in this drawing set
Dialogue: 0,0:14:21.45,0:14:23.84,Default,,0000,0000,0000,,and that is that I have to look for a cross-section,
Dialogue: 0,0:14:24.13,0:14:24.53,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:14:24.61,0:14:27.52,Default,,0000,0000,0000,,And so, let's go see if we can find that cross-section.
Dialogue: 0,0:14:27.81,0:14:27.91,Default,,0000,0000,0000,,Well,
Dialogue: 0,0:14:27.93,0:14:29.84,Default,,0000,0000,0000,,there's a cross-section B right here.
Dialogue: 0,0:14:30.76,0:14:31.24,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:14:31.48,0:14:34.04,Default,,0000,0000,0000,,this is cross-section B and there's no post in that one,
Dialogue: 0,0:14:34.08,0:14:35.28,Default,,0000,0000,0000,,so that's not gonna be it.
Dialogue: 0,0:14:35.95,0:14:36.19,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:14:36.27,0:14:38.27,Default,,0000,0000,0000,,here's some other cross-sections here,
Dialogue: 0,0:14:38.65,0:14:38.75,Default,,0000,0000,0000,,but
Dialogue: 0,0:14:38.87,0:14:41.27,Default,,0000,0000,0000,,none of them go through the post I was wanting,
Dialogue: 0,0:14:41.31,0:14:42.26,Default,,0000,0000,0000,,which was that one.
Dialogue: 0,0:14:42.93,0:14:43.42,Default,,0000,0000,0000,,OK.
Dialogue: 0,0:14:43.91,0:14:45.45,Default,,0000,0000,0000,,So that's a little bit 
Dialogue: 0,0:14:45.45,0:14:46.06,Default,,0000,0000,0000,,difficult.
Dialogue: 0,0:14:52.35,0:14:52.45,Default,,0000,0000,0000,,See
Dialogue: 0,0:14:52.45,0:14:54.06,Default,,0000,0000,0000,,what else we have going on here.
Dialogue: 0,0:14:55.05,0:14:55.60,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:14:56.85,0:14:57.02,Default,,0000,0000,0000,,"Oh,
Dialogue: 0,0:14:57.03,0:14:57.23,Default,,0000,0000,0000,,here
Dialogue: 0,0:14:57.23,0:14:57.71,Default,,0000,0000,0000,,we go.
Dialogue: 0,0:14:58.09,0:14:59.32,Default,,0000,0000,0000,,Section-F
Dialogue: 0,0:15:00.05,0:15:02.93,Default,,0000,0000,0000,,goes right through the exact post that I want,
Dialogue: 0,0:15:03.33,0:15:04.92,Default,,0000,0000,0000,,and here's section-F.
Dialogue: 0,0:15:05.82,0:15:06.45,Default,,0000,0000,0000,,Right here,
Dialogue: 0,0:15:06.58,0:15:08.25,Default,,0000,0000,0000,,and it is telling me
Dialogue: 0,0:15:08.54,0:15:09.77,Default,,0000,0000,0000,,the height of that post,
Dialogue: 0,0:15:09.98,0:15:12.98,Default,,0000,0000,0000,,the height of that post is 5.68.
Dialogue: 0,0:15:14.15,0:15:14.31,Default,,0000,0000,0000,,All right,
Dialogue: 0,0:15:14.38,0:15:16.15,Default,,0000,0000,0000,,the height of that post is 5.68.
Dialogue: 0,0:15:16.39,0:15:17.75,Default,,0000,0000,0000,,Another thing you should know about drawings
Dialogue: 0,0:15:17.75,0:15:20.78,Default,,0000,0000,0000,,is you're extracting information from drawings,
Dialogue: 0,0:15:21.07,0:15:22.30,Default,,0000,0000,0000,,and that is
Dialogue: 0,0:15:22.67,0:15:23.30,Default,,0000,0000,0000,,that
Dialogue: 0,0:15:23.71,0:15:24.82,Default,,0000,0000,0000,,lines that,
Dialogue: 0,0:15:25.07,0:15:25.51,Default,,0000,0000,0000,,for example,
Dialogue: 0,0:15:25.56,0:15:26.47,Default,,0000,0000,0000,,I'm gonna look right in here,
Dialogue: 0,0:15:26.57,0:15:27.01,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:15:27.35,0:15:30.04,Default,,0000,0000,0000,,Lines that appear to be right angles
Dialogue: 0,0:15:30.47,0:15:33.03,Default,,0000,0000,0000,,are assumed to be right angles,
Dialogue: 0,0:15:33.15,0:15:34.55,Default,,0000,0000,0000,,that's supposed to be 90,
Dialogue: 0,0:15:34.67,0:15:34.99,Default,,0000,0000,0000,,OK.
Dialogue: 0,0:15:36.43,0:15:36.65,Default,,0000,0000,0000,,Lines 
Dialogue: 0,0:15:36.65,0:15:39.59,Default,,0000,0000,0000,,that appear to be on the same line
Dialogue: 0,0:15:39.79,0:15:40.87,Default,,0000,0000,0000,,such as this
Dialogue: 0,0:15:42.17,0:15:44.64,Default,,0000,0000,0000,,are actually on the same line.
Dialogue: 0,0:15:45.36,0:15:47.68,Default,,0000,0000,0000,,And these are important things to know about drawing.
Dialogue: 0,0:15:47.75,0:15:48.73,Default,,0000,0000,0000,,So, for 
Dialogue: 0,0:15:48.73,0:15:49.06,Default,,0000,0000,0000,,example,
Dialogue: 0,0:15:50.19,0:15:50.62,Default,,0000,0000,0000,,because,
Dialogue: 0,0:15:50.79,0:15:53.34,Default,,0000,0000,0000,,let's see if I can undo that one that I just did,
Dialogue: 0,0:15:53.60,0:15:53.98,Default,,0000,0000,0000,,OK.
Dialogue: 0,0:15:54.31,0:15:54.62,Default,,0000,0000,0000,,The
Dialogue: 0,0:15:54.83,0:15:56.94,Default,,0000,0000,0000,,height of this post
Dialogue: 0,0:15:57.31,0:15:58.46,Default,,0000,0000,0000,,is this much
Dialogue: 0,0:15:58.83,0:16:02.50,Default,,0000,0000,0000,,and the height of that post is also that same amount,
Dialogue: 0,0:16:02.87,0:16:07.90,Default,,0000,0000,0000,,5.68, because they appear to be on the same line,
Dialogue: 0,0:16:08.53,0:16:08.74,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:16:08.98,0:16:11.14,Default,,0000,0000,0000,,Same thing goes with lines that are flat
Dialogue: 0,0:16:11.39,0:16:12.07,Default,,0000,0000,0000,,appear to be flat
Dialogue: 0,0:16:12.15,0:16:13.31,Default,,0000,0000,0000,,are actually flat,
Dialogue: 0,0:16:13.67,0:16:16.17,Default,,0000,0000,0000,,and all that kind of wonderful stuff.
Dialogue: 0,0:16:16.54,0:16:16.74,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:16:16.84,0:16:18.94,Default,,0000,0000,0000,,what else do we need to know about this?
Dialogue: 0,0:16:19.22,0:16:20.49,Default,,0000,0000,0000,,We need to know that
Dialogue: 0,0:16:20.78,0:16:23.09,Default,,0000,0000,0000,,there are some symbols on here that
Dialogue: 0,0:16:23.24,0:16:24.57,Default,,0000,0000,0000,,need to be described.
Dialogue: 0,0:16:24.86,0:16:25.02,Default,,0000,0000,0000,,OK.
Dialogue: 0,0:16:25.13,0:16:26.66,Default,,0000,0000,0000,,This is a complex one,
Dialogue: 0,0:16:26.70,0:16:27.30,Default,,0000,0000,0000,,for example,
Dialogue: 0,0:16:27.39,0:16:28.02,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:16:28.18,0:16:29.95,Default,,0000,0000,0000,,This means that there are 6
Dialogue: 0,0:16:31.25,0:16:36.55,Default,,0000,0000,0000,,features that have a diameter of 1.44,
Dialogue: 0,0:16:36.96,0:16:38.76,Default,,0000,0000,0000,,see if we can think about what that is,
Dialogue: 0,0:16:39.05,0:16:39.65,Default,,0000,0000,0000,,there's 1,
Dialogue: 0,0:16:39.85,0:16:40.64,Default,,0000,0000,0000,,there's 2,
Dialogue: 0,0:16:40.73,0:16:41.48,Default,,0000,0000,0000,,there's 3,
Dialogue: 0,0:16:41.53,0:16:42.21,Default,,0000,0000,0000,,there's 4,
Dialogue: 0,0:16:42.35,0:16:42.96,Default,,0000,0000,0000,,there's 5,
Dialogue: 0,0:16:42.97,0:16:44.04,Default,,0000,0000,0000,,and there's 6.
Dialogue: 0,0:16:44.33,0:16:46.11,Default,,0000,0000,0000,,How do I know that those are the ones?
Dialogue: 0,0:16:46.53,0:16:48.32,Default,,0000,0000,0000,,Because when you come over here and you look at this,
Dialogue: 0,0:16:49.01,0:16:51.08,Default,,0000,0000,0000,,all 6 of those look similar.
Dialogue: 0,0:16:51.73,0:16:51.90,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:16:51.93,0:16:55.21,Default,,0000,0000,0000,,I got to get back to sketching and not erasing
Dialogue: 0,0:16:55.49,0:16:55.89,Default,,0000,0000,0000,,that one,
Dialogue: 0,0:16:55.97,0:16:56.44,Default,,0000,0000,0000,,that one,
Dialogue: 0,0:16:56.57,0:16:57.09,Default,,0000,0000,0000,,that one,
Dialogue: 0,0:16:57.25,0:16:57.83,Default,,0000,0000,0000,,that one,
Dialogue: 0,0:16:57.85,0:16:59.69,Default,,0000,0000,0000,,and that one and that one.
Dialogue: 0,0:17:00.24,0:17:02.83,Default,,0000,0000,0000,,All appear similar. And in this
Dialogue: 0,0:17:03.52,0:17:06.67,Default,,0000,0000,0000,,drawing image they also all appear similar
Dialogue: 0,0:17:07.04,0:17:10.21,Default,,0000,0000,0000,,and the fact that there's a dimension that says 6X
Dialogue: 0,0:17:10.56,0:17:11.33,Default,,0000,0000,0000,,means
Dialogue: 0,0:17:11.80,0:17:12.63,Default,,0000,0000,0000,,that they are.
Dialogue: 0,0:17:12.96,0:17:15.11,Default,,0000,0000,0000,,Now what does this symbol here mean?
Dialogue: 0,0:17:15.56,0:17:18.33,Default,,0000,0000,0000,,This means that there is a hole,
Dialogue: 0,0:17:18.88,0:17:20.30,Default,,0000,0000,0000,,and it's pointing to a hole,
Dialogue: 0,0:17:20.52,0:17:20.74,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:17:20.80,0:17:22.75,Default,,0000,0000,0000,,you can see it pointing right there to that hole.
Dialogue: 0,0:17:23.00,0:17:24.51,Default,,0000,0000,0000,,This hole that's right here
Dialogue: 0,0:17:25.24,0:17:25.99,Default,,0000,0000,0000,,is
Dialogue: 0,0:17:26.33,0:17:29.09,Default,,0000,0000,0000,,5.68 millimeters deep.
Dialogue: 0,0:17:30.12,0:17:30.39,Default,,0000,0000,0000,,Now,
Dialogue: 0,0:17:30.44,0:17:34.07,Default,,0000,0000,0000,,if we couple that together with what we saw in the cross-section,
Dialogue: 0,0:17:34.76,0:17:36.23,Default,,0000,0000,0000,,we can actually see that hole,
Dialogue: 0,0:17:36.36,0:17:37.23,Default,,0000,0000,0000,,it's right there.
Dialogue: 0,0:17:38.06,0:17:38.26,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:17:38.27,0:17:40.57,Default,,0000,0000,0000,,it goes all the way down right there and it 
Dialogue: 0,0:17:40.86,0:17:42.85,Default,,0000,0000,0000,,is in line with this.
Dialogue: 0,0:17:43.18,0:17:46.02,Default,,0000,0000,0000,,And so, we know actually that we've interpreted that
Dialogue: 0,0:17:46.50,0:17:47.21,Default,,0000,0000,0000,,correctly.
Dialogue: 0,0:17:47.46,0:17:49.37,Default,,0000,0000,0000,,Let's see if there's anything else in here that's
Dialogue: 0,0:17:49.54,0:17:52.09,Default,,0000,0000,0000,,interesting to talk about right now
Dialogue: 0,0:17:52.50,0:17:53.41,Default,,0000,0000,0000,,other than
Dialogue: 0,0:17:53.90,0:17:56.03,Default,,0000,0000,0000,,the stuff we have already talked about.
Dialogue: 0,0:17:56.30,0:17:57.89,Default,,0000,0000,0000,,I think this is a good one right here.
Dialogue: 0,0:17:57.94,0:17:59.50,Default,,0000,0000,0000,,Let's take a look at this for a minute.
Dialogue: 0,0:18:01.07,0:18:03.42,Default,,0000,0000,0000,,Maybe this drawing has more than one that will help us,
Dialogue: 0,0:18:03.47,0:18:03.67,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:18:03.79,0:18:04.39,Default,,0000,0000,0000,,this is good.
Dialogue: 0,0:18:05.15,0:18:07.31,Default,,0000,0000,0000,,There are two things going on on this drawing that
Dialogue: 0,0:18:07.31,0:18:09.71,Default,,0000,0000,0000,,are on this view that are worth thinking about.
Dialogue: 0,0:18:10.07,0:18:11.90,Default,,0000,0000,0000,,One is the fact that sometimes
Dialogue: 0,0:18:12.11,0:18:13.46,Default,,0000,0000,0000,,8X is used
Dialogue: 0,0:18:13.91,0:18:16.28,Default,,0000,0000,0000,,and sometimes a thing called typical is used.
Dialogue: 0,0:18:16.35,0:18:17.82,Default,,0000,0000,0000,,'TYP' means typical.
Dialogue: 0,0:18:18.23,0:18:18.35,Default,,0000,0000,0000,,Well,
Dialogue: 0,0:18:18.43,0:18:20.26,Default,,0000,0000,0000,,we already know the 8X version of this.
Dialogue: 0,0:18:20.33,0:18:22.47,Default,,0000,0000,0000,,It means that there's 8 radii
Dialogue: 0,0:18:23.30,0:18:24.80,Default,,0000,0000,0000,,of the same exact
Dialogue: 0,0:18:25.10,0:18:25.89,Default,,0000,0000,0000,,size,
Dialogue: 0,0:18:26.30,0:18:29.41,Default,,0000,0000,0000,,and they should be easily pick out a ball
Dialogue: 0,0:18:29.82,0:18:30.77,Default,,0000,0000,0000,,in this drawing.
Dialogue: 0,0:18:30.98,0:18:31.42,Default,,0000,0000,0000,,There's 1,
Dialogue: 0,0:18:31.46,0:18:31.82,Default,,0000,0000,0000,,there's 2,
Dialogue: 0,0:18:31.94,0:18:32.34,Default,,0000,0000,0000,,there's 3,
Dialogue: 0,0:18:32.42,0:18:32.78,Default,,0000,0000,0000,,there's 4,
Dialogue: 0,0:18:32.86,0:18:33.26,Default,,0000,0000,0000,,there's 5,
Dialogue: 0,0:18:33.34,0:18:33.70,Default,,0000,0000,0000,,there's 6,
Dialogue: 0,0:18:33.78,0:18:34.18,Default,,0000,0000,0000,,there's 7,
Dialogue: 0,0:18:34.26,0:18:34.97,Default,,0000,0000,0000,,there's 8.
Dialogue: 0,0:18:35.26,0:18:38.53,Default,,0000,0000,0000,,All 8 of those are 1.3.
Dialogue: 0,0:18:39.02,0:18:40.14,Default,,0000,0000,0000,,But over here,
Dialogue: 0,0:18:41.13,0:18:42.85,Default,,0000,0000,0000,,we have something different going on,
Dialogue: 0,0:18:42.92,0:18:43.43,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:18:43.71,0:18:44.85,Default,,0000,0000,0000,,We don't have
Dialogue: 0,0:18:45.22,0:18:47.89,Default,,0000,0000,0000,,a certain number,
Dialogue: 0,0:18:48.18,0:18:48.38,Default,,0000,0000,0000,,you know,
Dialogue: 0,0:18:48.50,0:18:52.42,Default,,0000,0000,0000,,like 12X or something in front of this 1.00.
Dialogue: 0,0:18:52.50,0:18:55.41,Default,,0000,0000,0000,,We instead just have 1.00 typical.
Dialogue: 0,0:18:55.80,0:18:56.97,Default,,0000,0000,0000,,Why is that the case?
Dialogue: 0,0:18:57.34,0:18:57.54,Default,,0000,0000,0000,,Well,
Dialogue: 0,0:18:57.70,0:18:59.17,Default,,0000,0000,0000,,if we take a look at this guy,
Dialogue: 0,0:18:59.50,0:18:59.58,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:18:59.66,0:19:02.53,Default,,0000,0000,0000,,and let's go erase some of this stuff that I had on here earlier.
Dialogue: 0,0:19:03.22,0:19:03.30,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:19:03.34,0:19:04.26,Default,,0000,0000,0000,,if we look at this guy,
Dialogue: 0,0:19:04.38,0:19:05.94,Default,,0000,0000,0000,,I'm gonna turn this one to blue for a minute.
Dialogue: 0,0:19:06.40,0:19:13.27,Default,,0000,0000,0000,,I've got 1-2-3-4-5-6-7-8-9-
Dialogue: 0,0:19:13.28,0:19:14.36,Default,,0000,0000,0000,,10-11-
Dialogue: 0,0:19:14.37,0:19:15.43,Default,,0000,0000,0000,,12,
Dialogue: 0,0:19:15.96,0:19:17.62,Default,,0000,0000,0000,,but then I also have
Dialogue: 0,0:19:18.30,0:19:19.35,Default,,0000,0000,0000,,this one in red
Dialogue: 0,0:19:19.64,0:19:21.15,Default,,0000,0000,0000,,13-14-
Dialogue: 0,0:19:21.16,0:19:22.55,Default,,0000,0000,0000,,15-16-
Dialogue: 0,0:19:22.56,0:19:23.64,Default,,0000,0000,0000,,17-18-
Dialogue: 0,0:19:23.65,0:19:24.99,Default,,0000,0000,0000,,19-20.
Dialogue: 0,0:19:25.40,0:19:29.80,Default,,0000,0000,0000,,20 geometric features that have a dimension of 1,
Dialogue: 0,0:19:30.36,0:19:32.95,Default,,0000,0000,0000,,just in this particular part of the image.
Dialogue: 0,0:19:33.42,0:19:35.91,Default,,0000,0000,0000,,And so, the way that that's dealt with is not
Dialogue: 0,0:19:36.20,0:19:36.94,Default,,0000,0000,0000,,to say,
Dialogue: 0,0:19:37.16,0:19:37.24,Default,,0000,0000,0000,,well,
Dialogue: 0,0:19:37.28,0:19:38.08,Default,,0000,0000,0000,,what number did I say?
Dialogue: 0,0:19:38.12,0:19:38.40,Default,,0000,0000,0000,,I don't know,
Dialogue: 0,0:19:38.44,0:19:39.54,Default,,0000,0000,0000,,is it 16.
Dialogue: 0,0:19:40.13,0:19:40.16,Default,,0000,0000,0000,,No,
Dialogue: 0,0:19:40.20,0:19:41.15,Default,,0000,0000,0000,,it was 20.
Dialogue: 0,0:19:41.87,0:19:43.55,Default,,0000,0000,0000,,It's not to do this.
Dialogue: 0,0:19:45.80,0:19:46.71,Default,,0000,0000,0000,,But instead,
Dialogue: 0,0:19:46.88,0:19:50.05,Default,,0000,0000,0000,,it's to say 1.00 TYP.
Dialogue: 0,0:19:50.94,0:19:54.22,Default,,0000,0000,0000,,Because it's more obvious that that's what's going on
Dialogue: 0,0:19:54.58,0:19:55.70,Default,,0000,0000,0000,,in this area.
Dialogue: 0,0:19:57.67,0:19:58.32,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:19:58.59,0:19:59.46,Default,,0000,0000,0000,,erasing those.
Dialogue: 0,0:20:00.41,0:20:00.43,Default,,0000,0000,0000,,All right,
Dialogue: 0,0:20:01.12,0:20:01.33,Default,,0000,0000,0000,,what
Dialogue: 0,0:20:01.40,0:20:03.00,Default,,0000,0000,0000,,else do we need to talk about?
Dialogue: 0,0:20:03.16,0:20:05.79,Default,,0000,0000,0000,,It's important to know that circles
Dialogue: 0,0:20:06.20,0:20:08.19,Default,,0000,0000,0000,,will always be designated
Dialogue: 0,0:20:09.08,0:20:12.91,Default,,0000,0000,0000,,by the standards as a diameter and arcs,
Dialogue: 0,0:20:13.24,0:20:14.34,Default,,0000,0000,0000,,not complete circles,
Dialogue: 0,0:20:14.37,0:20:16.68,Default,,0000,0000,0000,,will always be designated by a radius.
Dialogue: 0,0:20:17.46,0:20:20.47,Default,,0000,0000,0000,,It's also important to know that in engineering drawings,
Dialogue: 0,0:20:20.48,0:20:21.95,Default,,0000,0000,0000,,according to the standards,
Dialogue: 0,0:20:22.32,0:20:27.30,Default,,0000,0000,0000,,circles will only be dimensioned where they look like a circle.
Dialogue: 0,0:20:27.63,0:20:28.74,Default,,0000,0000,0000,,So, if I had a shaft,
Dialogue: 0,0:20:28.75,0:20:29.22,Default,,0000,0000,0000,,for example,
Dialogue: 0,0:20:29.35,0:20:30.54,Default,,0000,0000,0000,,that looked like this,
Dialogue: 0,0:20:31.19,0:20:33.82,Default,,0000,0000,0000,,and I had an engineering drawing that looked like this,
Dialogue: 0,0:20:34.87,0:20:37.54,Default,,0000,0000,0000,,I would dimension this one
Dialogue: 0,0:20:37.91,0:20:39.02,Default,,0000,0000,0000,,in this view,
Dialogue: 0,0:20:40.21,0:20:40.66,Default,,0000,0000,0000,,not
Dialogue: 0,0:20:40.79,0:20:41.59,Default,,0000,0000,0000,,like this.
Dialogue: 0,0:20:42.85,0:20:43.15,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:20:43.27,0:20:45.46,Default,,0000,0000,0000,,this one is diameter something.
Dialogue: 0,0:20:45.71,0:20:46.98,Default,,0000,0000,0000,,This is no good.
Dialogue: 0,0:20:47.27,0:20:50.50,Default,,0000,0000,0000,,And the reason why I'm telling you that is because as you look for information,
Dialogue: 0,0:20:50.75,0:20:52.02,Default,,0000,0000,0000,,you want to make sure
Dialogue: 0,0:20:52.27,0:20:53.48,Default,,0000,0000,0000,,that you
Dialogue: 0,0:20:53.87,0:20:54.42,Default,,0000,0000,0000,,are
Dialogue: 0,0:20:54.68,0:20:55.94,Default,,0000,0000,0000,,looking in the right spot.
Dialogue: 0,0:20:56.03,0:20:58.07,Default,,0000,0000,0000,,So, if you're looking for the dimension of a circle,
Dialogue: 0,0:20:58.15,0:20:59.98,Default,,0000,0000,0000,,look where it actually appears
Dialogue: 0,0:21:00.35,0:21:00.81,Default,,0000,0000,0000,,like
Dialogue: 0,0:21:01.07,0:21:01.86,Default,,0000,0000,0000,,a circle.
Dialogue: 0,0:21:02.27,0:21:02.74,Default,,0000,0000,0000,,OK,
Dialogue: 0,0:21:02.86,0:21:05.43,Default,,0000,0000,0000,,a few things I want to just go over here for a second.
Dialogue: 0,0:21:06.97,0:21:10.57,Default,,0000,0000,0000,,As you're trying to extract out the information from these drawings,
Dialogue: 0,0:21:10.79,0:21:12.56,Default,,0000,0000,0000,,(let me just zoom out here for a second).
Dialogue: 0,0:21:15.01,0:21:16.28,Default,,0000,0000,0000,,We want to start
Dialogue: 0,0:21:16.61,0:21:21.64,Default,,0000,0000,0000,,by getting an overall view of the drawing by just scanning through it,
Dialogue: 0,0:21:22.35,0:21:24.02,Default,,0000,0000,0000,,understanding what images are there,
Dialogue: 0,0:21:24.29,0:21:26.28,Default,,0000,0000,0000,,trying to absorb a little bit of stuff,
Dialogue: 0,0:21:26.45,0:21:26.84,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:21:27.21,0:21:28.98,Default,,0000,0000,0000,,We want to take a look at the title block,
Dialogue: 0,0:21:29.13,0:21:30.92,Default,,0000,0000,0000,,see what information is given there.
Dialogue: 0,0:21:31.21,0:21:33.00,Default,,0000,0000,0000,,We definitely want to read the notes,
Dialogue: 0,0:21:33.49,0:21:33.92,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:21:34.41,0:21:37.92,Default,,0000,0000,0000,,And then we want to start getting the top level information
Dialogue: 0,0:21:38.16,0:21:39.27,Default,,0000,0000,0000,,that will help us
Dialogue: 0,0:21:39.61,0:21:42.72,Default,,0000,0000,0000,,to start building out the geometry.
Dialogue: 0,0:21:43.09,0:21:43.57,Default,,0000,0000,0000,,OK.
Dialogue: 0,0:21:45.08,0:21:45.28,Default,,0000,0000,0000,,While
Dialogue: 0,0:21:45.28,0:21:46.23,Default,,0000,0000,0000,,you're doing this,
Dialogue: 0,0:21:46.36,0:21:49.68,Default,,0000,0000,0000,,you want to learn to look for clues
Dialogue: 0,0:21:50.24,0:21:51.50,Default,,0000,0000,0000,,in the drawing,
Dialogue: 0,0:21:51.52,0:21:53.88,Default,,0000,0000,0000,,and I don't mean this from an educational perspective.
Dialogue: 0,0:21:53.92,0:21:56.11,Default,,0000,0000,0000,,I just mean that there are certain things like
Dialogue: 0,0:21:56.60,0:21:59.48,Default,,0000,0000,0000,,general wall thickness that's going to tell you
Dialogue: 0,0:21:59.48,0:22:01.27,Default,,0000,0000,0000,,there's going to be a shell somewhere,
Dialogue: 0,0:22:01.56,0:22:02.04,Default,,0000,0000,0000,,right?
Dialogue: 0,0:22:02.28,0:22:02.83,Default,,0000,0000,0000,,Or
Dialogue: 0,0:22:03.17,0:22:04.22,Default,,0000,0000,0000,,there are
Dialogue: 0,0:22:04.52,0:22:08.97,Default,,0000,0000,0000,,things like these virtual sharps that we saw here that mean that
Dialogue: 0,0:22:09.32,0:22:14.03,Default,,0000,0000,0000,,really we're trying to give a dimension before a radius would occur in a CAD model,
Dialogue: 0,0:22:14.28,0:22:14.40,Default,,0000,0000,0000,,right,
Dialogue: 0,0:22:14.41,0:22:16.83,Default,,0000,0000,0000,,or before a radius occurred in a manufacturing
Dialogue: 0,0:22:17.31,0:22:17.72,Default,,0000,0000,0000,,step.
Dialogue: 0,0:22:18.61,0:22:18.92,Default,,0000,0000,0000,,Also,
Dialogue: 0,0:22:19.91,0:22:19.98,Default,,0000,0000,0000,,we
Dialogue: 0,0:22:19.98,0:22:21.39,Default,,0000,0000,0000,,want to take a look at the cross-sections.
Dialogue: 0,0:22:21.69,0:22:24.44,Default,,0000,0000,0000,,We want to know that the cross-sections are there to help us
Dialogue: 0,0:22:24.73,0:22:26.96,Default,,0000,0000,0000,,and we want to really try to absorb the cross
Dialogue: 0,0:22:26.96,0:22:30.17,Default,,0000,0000,0000,,sections and understand what's going on with the cross-sections.
Dialogue: 0,0:22:30.33,0:22:32.80,Default,,0000,0000,0000,,Then we want to do our best to soak in the details
Dialogue: 0,0:22:33.09,0:22:34.62,Default,,0000,0000,0000,,of the detail view,
Dialogue: 0,0:22:34.93,0:22:35.17,Default,,0000,0000,0000,,right?
Dialogue: 0,0:22:35.29,0:22:36.76,Default,,0000,0000,0000,,What is this telling us?
Dialogue: 0,0:22:36.81,0:22:38.76,Default,,0000,0000,0000,,This is an interesting one right here,
Dialogue: 0,0:22:38.97,0:22:39.22,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:22:39.49,0:22:39.86,Default,,0000,0000,0000,,Because
Dialogue: 0,0:22:40.49,0:22:41.44,Default,,0000,0000,0000,,this line
Dialogue: 0,0:22:41.93,0:22:43.14,Default,,0000,0000,0000,,and this line
Dialogue: 0,0:22:43.62,0:22:47.72,Default,,0000,0000,0000,,are parallel to each other and this line and this line are parallel to each other.
Dialogue: 0,0:22:48.01,0:22:49.48,Default,,0000,0000,0000,,This is interesting because
Dialogue: 0,0:22:49.97,0:22:51.98,Default,,0000,0000,0000,,there are other ways
Dialogue: 0,0:22:52.37,0:22:53.20,Default,,0000,0000,0000,,to
Dialogue: 0,0:22:53.61,0:22:55.28,Default,,0000,0000,0000,,have measured this.
Dialogue: 0,0:22:55.48,0:22:55.49,Default,,0000,0000,0000,,Yeah,
Dialogue: 0,0:22:55.50,0:22:56.80,Default,,0000,0000,0000,,we did this one and this one,
Dialogue: 0,0:22:56.98,0:22:57.33,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:22:58.24,0:23:00.11,Default,,0000,0000,0000,,We could have measured like this,
Dialogue: 0,0:23:00.28,0:23:02.79,Default,,0000,0000,0000,,and these give us two different numbers actually,
Dialogue: 0,0:23:03.04,0:23:05.95,Default,,0000,0000,0000,,and this is something that can cause trouble in this particular
Dialogue: 0,0:23:06.36,0:23:06.93,Default,,0000,0000,0000,,model.
Dialogue: 0,0:23:07.68,0:23:08.44,Default,,0000,0000,0000,,So,
Dialogue: 0,0:23:09.39,0:23:09.51,Default,,0000,0000,0000,,understand
Dialogue: 0,0:23:09.51,0:23:10.23,Default,,0000,0000,0000,,what
Dialogue: 0,0:23:10.52,0:23:12.47,Default,,0000,0000,0000,,these things are telling you,
Dialogue: 0,0:23:12.72,0:23:13.24,Default,,0000,0000,0000,,OK?
Dialogue: 0,0:23:13.68,0:23:14.47,Default,,0000,0000,0000,,Also,
Dialogue: 0,0:23:16.08,0:23:16.18,Default,,0000,0000,0000,,most 
Dialogue: 0,0:23:16.18,0:23:16.84,Default,,0000,0000,0000,,important,
Dialogue: 0,0:23:16.92,0:23:20.65,Default,,0000,0000,0000,,I think as you're looking through these engineering drawings is just to realize
Dialogue: 0,0:23:21.02,0:23:22.83,Default,,0000,0000,0000,,that the information is there.
Dialogue: 0,0:23:23.20,0:23:25.71,Default,,0000,0000,0000,,You don't need all of it at once.
Dialogue: 0,0:23:26.06,0:23:28.39,Default,,0000,0000,0000,,You need to use your CAD strategy
Dialogue: 0,0:23:28.72,0:23:31.84,Default,,0000,0000,0000,,to help you know just what bit you need,
Dialogue: 0,0:23:32.20,0:23:35.15,Default,,0000,0000,0000,,what feature you want to create so that you can get into this
Dialogue: 0,0:23:35.51,0:23:38.05,Default,,0000,0000,0000,,set of drawings and go find the essential
Dialogue: 0,0:23:38.44,0:23:39.43,Default,,0000,0000,0000,,dimensions
Dialogue: 0,0:23:39.68,0:23:41.36,Default,,0000,0000,0000,,that will help you get it.
Dialogue: 0,0:23:41.96,0:23:43.85,Default,,0000,0000,0000,,So, I'm coming back now to
Dialogue: 0,0:23:44.13,0:23:46.45,Default,,0000,0000,0000,,just sort of end of this and say that it
Dialogue: 0,0:23:46.45,0:23:49.85,Default,,0000,0000,0000,,is indeed really hard to read these engineering drawings.
Dialogue: 0,0:23:50.01,0:23:52.44,Default,,0000,0000,0000,,It is a foreign language in my view
Dialogue: 0,0:23:52.65,0:23:53.76,Default,,0000,0000,0000,,and it takes practice.
Dialogue: 0,0:23:53.81,0:23:54.65,Default,,0000,0000,0000,,It takes
Dialogue: 0,0:23:55.01,0:23:55.78,Default,,0000,0000,0000,,patience
Dialogue: 0,0:23:56.13,0:23:57.72,Default,,0000,0000,0000,,and it takes a willingness
Dialogue: 0,0:23:58.13,0:24:00.04,Default,,0000,0000,0000,,to actually read them,
Dialogue: 0,0:24:00.33,0:24:01.68,Default,,0000,0000,0000,,and to try to
Dialogue: 0,0:24:02.13,0:24:05.42,Default,,0000,0000,0000,,see what they're telling you, and to envision the geometry
Dialogue: 0,0:24:05.69,0:24:07.04,Default,,0000,0000,0000,,that's being described.
Dialogue: 0,0:24:07.33,0:24:08.41,Default,,0000,0000,0000,,And as you do that,
Dialogue: 0,0:24:08.96,0:24:10.58,Default,,0000,0000,0000,,your mind will be able to
Dialogue: 0,0:24:10.88,0:24:12.72,Default,,0000,0000,0000,,notice certain dimensions,
Dialogue: 0,0:24:13.60,0:24:14.69,Default,,0000,0000,0000,,certain features,
Dialogue: 0,0:24:14.96,0:24:15.80,Default,,0000,0000,0000,,certain patterns,
Dialogue: 0,0:24:15.88,0:24:16.79,Default,,0000,0000,0000,,certain other things
Dialogue: 0,0:24:17.04,0:24:17.87,Default,,0000,0000,0000,,that will help you
Dialogue: 0,0:24:18.16,0:24:20.27,Default,,0000,0000,0000,,during the CAD modeling process.