CAD basics with Onshape - Part 2 (free software for makers) | Mathieu Dorion | Skillshare

CAD basics with Onshape - Part 2 (free software for makers)

Mathieu Dorion, Hi I'm Math! Welcome to my classes

CAD basics with Onshape - Part 2 (free software for makers)

Mathieu Dorion, Hi I'm Math! Welcome to my classes

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7 Lessons (26m)
    • 1. Introduction

      1:17
    • 2. Using revolve and sweep

      8:29
    • 3. Using loft with this phone speaker

      5:57
    • 4. Using thicken

      1:39
    • 5. Using shell to create an easy box

      4:37
    • 6. Using rib to add a support

      3:34
    • 7. Wrap up!

      0:55
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About This Class

Learn the basics of CAD with Onshape in this class series. Aimed at beginners, in this second class we build upon the skills learned in the first class by focusing more on the 3D tools such as extrude, revolve, sweep, loft and a couple more along the way. By building a kettlebell and a phone speaker we learn to use different tools and we get more comfortable building more complex parts. This class will get you well on your way to designing whatever you can imagine!

Onshape is free for hobbyists, makers and students. It's also cloud-based so there is nothing to download or install and it only requires a decent internet connection so no need for a powerful computer. Make an account here : https://www.onshape.com/en/products/free

Whether you want to learn more about designing parts for 3d printing, for furniture making or to get started in the engineering world, this series will help you develop skills that will help you achieve your goals!

If you're not sure about going premium, you can get 14 days free (instead of the usual 7) by using my link!

Meet Your Teacher

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Mathieu Dorion

Hi I'm Math! Welcome to my classes

Teacher

Hi! I'm Math, and I'm a mechanical engineer (but that's the boring part). I'm also a maker, fixer, tinkerer, whatever you want to call it : I love building random things. I've built stuff ranging from a massive industrial vacuum forming machine to a bike frame, and everything in between. I love gaining new skills and every time I do, I feel like I'm unlocking a whole new set of projects that I can tackle.

In that spirit, I want to pay it forward by sharing the knowledge I've gained over the years in my studies, work and projects so that more people can enjoy making stuff. More importantly, I want people to do it mindfully, with the right knowledge and safely. So my classes are focused on developing good practices and acquiring a more profound knowledge of the underlying principle... See full profile

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Transcripts

1. Introduction: Hi everyone. My name is Matt and welcome to my class. My goal with this series is to share some of the knowledge I've gained through my career as a mechanical engineer. So computer-aided design, or CAD for short, is a really powerful tool that can enable you to design, model, or create a multitude of objects or assemblies. You can use it to 3D print a bar, model furniture invents something you are even redesign your kitchen, the list goes on really. Most CAD softwares are based on the similar concept. And this is what I want to teach you with this class. We'll use onsite, which is a free software for makers. It runs in your browser, so nothing to download or install. It also runs on your phone. And I'll use it to teach you the basics of can so that you have the tools and knowledge to accomplish your specific goals and projects. This is a two-part series. The first one goes through the basics of sketching and extruding. The second one explores the revolve sweep loft and thickened tools to create more complex shapes and parts. If you want to explore further, I also have two classes that they, these concepts in the real-world by applying CAD to woodworking. So check them out if you're interested. With that being said, thanks a lot for joining. I hope you enjoyed the class and I'll see you on the other side. 2. Using revolve and sweep: All right, So as mentioned previously, we are going to be modeling this kettle bell here. There's no specific reason why I chose a kettle bell, but this shape will allow us to use the different 3D tools and so on. The first class we focused a bit more on the to the environment Yvonne shape. Now we're going to be focusing a bit more on the 3D tools here. All right, so let's start from scratch here. We'll, we'll first model the main body of the kettle bells. Let's do that. Let's choose the front plane. Trust kitsch, remove this, draw a line here. And this one will be 120. And I want it to be centered around that point. So and I'm going to draw an arch like so. There you go. We need a flat bottom. So let's add a line here like this. And I want it to be 30. There you go. Okay, so we're going to have to trim this part here is let's use the trim tool, this and this. And since we cut this part, we lost the dimensions. We're just going to add the new one. There we go. Specific dimensions don't really matter. It's just for the example. So our sketches done, let's close that. And let's use this sketch with the Revolve tool. So what the revolt does is it uses the region we just catch and then revolves it around that axis. So it needs a face which we've selected here, and it needs an access to revolve around. So let's use this one. And there you go. So revolve 360 because we decided we wanted to full. And you can quite see here. So we've got our original sketch here, and this is what it does. So let's close that. And then we are going to model the handle here and goes here. So let's use the front plane again. So remember our front plane is in the middle here. So front plane and use a sketch. So the edge of the circle is going to be useful for this sketch. So let's project it on our, on our plane and we can do it like that. But the intersection tool, I'm just going to press that as construction. There you go. So now we have a line that we can base our stuff on. So since it's symmetric, I'm going to be putting a symmetrical line. Then just say random line that goes like this. There you go. So dimensions are 50 here. I want this to be 130. And the angle here would be 62. There you go. That's one way of constraining the whole sketch. We could have used different dimensions, but that's fine. And we are going to be adding a radius here. So let's use the fill tool, this, this. And I want it to be 15. There you go. Now we can select the three lines and use the mirror tool. So take the mirror line. There you go. Everything is good. So we can call that sketch here. The goal of these sketches to use this suite tool. So the sweep tool uses a trajectory and then a profile to form a solid. So now we have a trajectory would just need a profile. So for our profile, we are going to be the using the right plane here. So let's click on Sketch. So our profile for the handle will simply be a circle. Let's put it there. And I'll show you what it does. So as you can see, the circle is here, it intersects with the trajectory. And if we select that, it'll make more sense. We'll say use the sweep. So let's use the sweep now. So face and sketch region to sweep. So this is our region to sweep and sweep path. It's this, this, this and all that. So now you get a better idea of what it does so we can accept that. Okay, so now this area here is a bit weird. So we're going to fix that by using the Move face tool. So the move face tool, simply select the face we want to move and go the other direction. And there you go. So it kinda adds material basically moves the face we'd selected by five millimeters. So in our case, five is enough for us to intersect the main body. I'm going to do the same thing here. There you go. So now if we were to use the section view and the front plane. Yes, as we can see, since everything is merged as one solid, so that's good. So the next thing we're going to do is remove some material and on the face here. So let's use the right plane here and draw a sketch. And it will simply use a rectangle here. There you go. So it'll be 45. So this is the area we're trying to remove from the main body. I need to make sure that Mary rectangle is bigger than that area. So again, just simply constraint it with this and simply added dimension here. So make sure it's bigger. It just needs to be bigger than the main body. The same thing for this, and I go 35, that's fine. So we're going to use the fifth sketch here, and we're going to go back to the extrude function. So usually we think of the extrude function as a way to basically extrude and make a solid. There's also a Remove option. So if you go to remove and use symmetric, as you can see, it's removing some material. And there you go. As you can see, I'm thinking this rectangle here and then pushing it on both sides. And this removes that. You can see the shadow of what it removes. So let's accept that. So that is good. So now if you remember correctly on my first part Studio, there is a weight here. So I'll do I know that this is 6.6 kilo. I'll show you. So we have our part here. Let's assign a material. So right-click Assign Material and on shape library. And then let's go into, let's just use cast iron. So I guess Erin, and so I'll take a science so there's a bunch of materials. I just want to guess Erin, basically cheap hysteria and I could find and say this is good. So now my part is made of cast iron. And if I go here this way, Mass Properties, parts to measures have part number 1. And then it says that the mass here is 6.6 kilo. So let's use that information that's really useful for us. So we're going to choose this face here, trust catch, and then use the text tool, right, 6.6 kilos. That's good. That's a bit big. So we're going to put a dimension which is 60. And this is really nice because we have a line here, so we can use this as the midpoint. There you go, fully constraint. And then once again, we're going to use the extrude function, but to remove something, some stuff here. So 25 is way too big to a mill will do. There you go. But it doesn't really show up. So it'd be nice if those letters were in black. So let's select the faces. And so if I right-click there and I go add appearance to five faces, I can use a color like black and it, Okay, and there you have it. So really easy way to use the revolve tool, the Sweep Tool, move face, and then using the extrude not to add material, but to remove some material. 3. Using loft with this phone speaker: Okay, so what exactly is this funny looking shape here? Well, I was looking for inspiration to use the loft tool here, and I stumbled upon this, which I guess is some kind of speaker for an iPhone or for whatever font you're using, whether it works or not, I don't know. It's not my place to say, but I think the shape is interesting. And so we're going to try to model it. So before we move on to a fresh part Studio and start from scratch as we usually do. I just wanted to show you or talk a bit more about the loft function. So we've used the sweep function, which uses a unique profile and follows a path. So what the function does is it uses different profiles and then it makes its own path. Well, you can also use your own path, but we're not gonna do that for this one, we're simply going to use, you see those three profiles. So I have this oval here to funnel shape here and this one here. So we're going to make those three and then used a log function to make this shape. So let's start. So our first sketch will be on the front plane. So let's like that. Normal to pre and then select here the ellipse. So the ellipse goes like this. You go from center, then the width, and then you select your height. There you go. We're going to place that in our environment. It's below 150. And then I'm here to here. I mentioned here, It's gonna let 80 from here to here. And that's called 35. There you go. And then we're going to put the hexagonal here, so like so, and we want six sites. So we want this here to be horizontal. So let's do that. This is 150. And let's place this, at least this about 50 as well. There you go. So quite simple, since our sketch fully constraints. So that's good, That's close that. So now we have the start and the end of our loft. So we're again going to need the middle portion here. So let's use the top plane like this and then do a sketch. So our sketch is going to be a hexagonal shape as well, like this. And 6 site once again. So putting a quick dimension here, 180, size, we want 85. And we obviously want this to be horizontal. There you go. So fully constrain. And now you can see we've got our three sketches. So now we can use the loft tool. So laughter profiles, so we need to select them in order. So our first one, our second one, and our third one. There you go. So instead of a solid, so if we remember correctly, this is kind of a small shell. We are going to use a surface. So a surface is a 0 thickness surface basically. So this is not a solid, is just a surface. We're going to turn it into a solid shortly afterwards. But it's just to show you that we can also do this, okay, so there's a few different options here. The first one is the start profiles. So put it like this so you see how it starts trade up. If we want to put normal to profile, so it starts normal to this shape here. And the magnitude, well, we could put 2, which kinda weird, 1.5. R1 is also fine. And then same thing for the end profile. So we've got to have normal as well. Yeah, so so instead of coming straight up, it starts normal for one and then goes and sweeps down. And I think that looks fine. Okay, So now we ever main shape, Let's take a look at the inspiration for that. So there's a little being here for the exit. So let's do this. So we're going to use the front plane here. So what we wanna do is make a, another hexagonal shape that's a bit offset from this one. So we're going to need a new plan for that. So here I'm going to do a plane. So I'm offsetting from the front plane under the direction here. And I just want ten millimeters. So as you can see, simply making a new plane that's parallel to the front one but offset by 10. So from that plane, I can sketch something here like this. And I can use the original sketch. And I can use the offset tool which is here. So the other way around. And I want 10. There you go. So now we have the exact same shape, but that is 10 millimeters away and then offset by 10. So that's great. So let's use a new loft. So our start profile will be show this one again. Let's start profile will be this one and our new profile will be this one. There you go. But we want this to be swooping like this. So let's start normal. Let's bit better. Maybe 1.5. And I don't want a solid. Once again, I simply want to surface and I want a, I don't want a new surface. I wanted to add it, so it merges with this one. So let's click. Okay. So now if we hide the sketch, we have a nice exit. 4. Using thicken: Okay, so as I've mentioned previously, what we have here is the surface, so there is no thickness, it's not a solid. So let's use the thickened tool to make it a solid. So I'm simply going to select the whole surface here. So now it went from the surface and then added five mil, maybe two is enough. That's fine. So now we have in use solid. If we hide the surface here. Now as we can see, we have something that's solid. We could use the section view to check it. Right. There you go. Now we know that we have something solid. Okay, so the next step will be to make a bracket here. So this section here. So it allows us to fix it to the phone and closure. So let's use the front. I could use either the front plane or I can use this surface here. They're both on the same exact plane. So let's sketch something and I can use the first sketch. Then we had here and use the use. So now it's in my sketch. And I can offset that by, let's say ten. Okay, so now we have two circular sketches here. And let's use that to extrude a small bracket. The other way around. Some two would be fine. Maybe five. There. You also know he have something that's a bit bigger and that will allow us to fix it on our books. 5. Using shell to create an easy box: Speaking of the bucks, Let's work on it. The first thing we're going to do is use this top plane here and the front on the top lane to make a new plane here. So I'm going to be using the plane again. But instead of using a, an offset dimension, I wanted to put it right where this point is, so I'm going to select that as well. So instead of using the offset which just inputs a dimension, I want something that's parallel to the top plane, but touches this point here. So plain point and it makes a plane here. Okay, so now let's use this blame to make our sketch. But this is kind of in the way bugs me. So what we can do is use the section view tour, Phantom cheer and cut this part. Yeah, there you go. So now I didn't break anything, it's just hidden for the moment. Let's hide the sketch. And then let's start going. There you go. I want this and this to be coincident. I want that's just a construction line. So I don't want this, this, and this to be metric 30 ago. This 120 looks fine. And 30, let's accept that. As you can see, the only thing we have here is a square, but let's extrude that into a box. Both ways. Bit bigger. There we go. That looks good. I don't want to add it to the first one. So if I use the add here, it will merge the box with this and want something new. So a new part. And I go and automatically on shape, gives it a new color. So that's good. But this actually needs to be emptied out. So it needs to be a shell. So we could use the shell command and it's quite easy to use, see like selecting here and you see what it does. There you go. So the shell thickness here is 2.5. I could also change that to, let's say, something a bit smaller. So now basically every wall thickness here is two millimeters. So that's an easy way to make a box and a cool little feature using the shell. So now we need a small place to put our phone. That's not exactly the bottom. So let's do a new sketch from not this plane here. It's offset that, yeah, looks good. From that plane where again, putting a sketch. Here you go. The only thing I want is a small box here. So it's going to put a box and say u and u incident. You NU, same thing here. The dimension I want here is, let's say 10. And so now I want this on the other side as well. So I'll show you a neat little trick. Instead of putting a line in my sketch, I'll sit like that. So like mirror. And then I'll select D would be the right plane. And there you go. So since our right plane here splits the whole part in two, we can also use that as our symmetry line. So that's really nice, really neat. Let's go back to this view and we're good. So we can extrude that just a small part. Now, I want to add that five mill would be fine. That direction good. And the other way around, there you go. So I'll just say super small edge. So let's just hide this super small edge so your phone rests on here and here, and the whole middle is open, but what we don't have right now, there's a whole that connects this box to this one. So what we can do here to make that hole is to show skips number four, where we're going to use this area here, It's a punch a hole through to blue box. I'm just going to hide part 1 here. So you can hide sketches and planes and all that, but you can also hide parts here. So here I am. So I'm going to use the extrude function and remove instead of adding. And I'm going to use this here. And instead of the line, I'm going to be up to face and select this face here. So here we have an idea, or this is good merges, good. There you go. So let's just bring this back so we can see what it does and just hide. Where is it? There you go. All right, this gets here. And now we can see we have a whole. So this is great. Oh, and let's turn off that section view so we have a good idea of what it looks like now. 6. Using rib to add a support: So this looks cool but highly, highly unstable. It's probably going to fall down. So we're going to be using the rib function. So there's a bunch of way that we can add a support here. But just as an excused, since we're waiting here. Let's go here, use the right, the right plane. And let's make it super simple sketch. And let's use the rib tools. So Rib tool, not well known but very powerful sketch tool. So I want this year to be roughly there, my knee and then full length. That's about right. But obviously this is not good, so let's make them coincident. So the simplest sketch, but just use your rib tool and see what it does. Yeah. So thickness, Let's say 51 something that's five mils thick. That looks good. And so now from our simple line, we have this nice little rib here. But we're not done yet. I want my rib to be a bit thicker at the bottom than it is at the top. So we can use the draft tool for that. So I'll draft by default it's in neutral plane, will use the parting plane at the parting line for this one pole direction. So if you remember geometry or 11, you can actually define a direction simply by using a plane. So I've used this face here. So the direction right now there's no arrow direction right now is this way down. And the edges won't be like this, this one. So obviously I wanted it, my degrees would be the other way around and want something like five army. But then, so maybe you see what it does now. So you see the arrow here is my direction. So it goes from this parting line here. And then it kind of stretches like that. And just to show you the difference, I'll use the draft again, but with the neutral plane this time. So neutral plane, so I'll use this as my neutral plane and then my antibodies to draft will be this one and this one. So the neutral plane, what it does is that it drafts from this plane, either outward or inward. Somebody going to use in Word for fun just to show you. So maybe phyto raise your short, you'll see more. You see, so from this neutral plane here at drafts inward until that's our support here, as you can see, wider at the base than it is at the top. And then our small drafts here just to show you. Okay, so one last thing I want to show you is the chamfer tool. So we've used the affiliate tool before. Chamfer tool works exactly the same. But instead of now show you is, let's 5 is probably still a big thing too. So you see, instead of having a round, round here at the corner, it's simply makes a, a 45-degree. So it's the equivalent of what you would be doing if you were to soften that corner with a file or something like that or buffet or send it something like that. So you can see it just simply adds a 45 degree. So what we're going to go around, super useful tool fillets are really nice. They're nice in the cab. They're a bit less than ice in the real-world because there are difficult to make, but chamfers are really easy to make. As I said, simply go around with a file or something and you have something that looks like that. There you go. So it's an easy way to soften edges. So there you have it. 7. Wrap up!: So there you have it. Obviously, since this is all parametric and you know that you could go around and change the shape, ST, change the dimensions. That probably could be 3D printed if you wanted to. I know that's not the most useful shaped to be making here, but we're learning. So we, what we got to see in this glass is lost. So we've used loft, we've used the thickened tool to make our surface into a solid. And then we've used the extrude either to add material or to remove it. We've used the shell command, which is quite nice and quite useful. And also the rib command. I know myself, I under utilize it. I don't really think of it because this could have been extruded instead. But as you saw as simple line here and made this whole feature. So that's super simple, super nice. And then the drafting tool, which is also very useful. So as always, go ahead, practice, have some fun and play with all different parameters. See you next time.