Ceci est une ancienne révision du document !
Let’s start anew. Click File > New and then create a new body. If you’ve just joined us and wonder how, then see part 1 of this series. Create a new sketch on the YZ (right) plane. What we want to do here is create a shape on one side of the vertical line. Do this using the Polyline tool Click somewhere on the vertical line to anchor our shape there. Click, click, click, until you get a shape something like this: It doesn’t have to be exact. Just something similar. But make sure you finish where you started. We want this to be a closed shape. Now, my shape is purposely wonky so that I can show you a couple of new tools before we finish off this object. See those two lines in green? Ideally I’d like them to be exactly horizontal. Well, all I need to do is to (one at a time) select the line, then click the Horizontal constraint icon (that we used a couple of parts ago).
See how those two lines now have a red minus sign below them to show they’re constrained to be horizontal. I set the line connecting them to vertical. You can still move those points around, but you’ll see how they’re locked to move only horizontally/vertically. I’ve moved a couple of points to suit what we’re about to do next. Select the top angled line. And press delete. Let’s use another new tool. The arc shape. You may need to click the down-arrow beside the arc icon to see the End points and rim point option. Click on one of the open points. You’ll see a circle appear. Click the other point and you’ll get an arc that you can adjust. Give our shape a nice arc. Feel free to do the same to the other diagonal line.
After I did my second arc, I moved one of my vertical points up a bit just to make it look better. You could, of course, lock down all of those points but, for now, this will do us. In the left panel, click Close to return back to the Part Design workbench. Time to do a new thing. Click the Revolution button. The line you see down the side is where the shape has rotated 360 degrees. So, as you can imagine, this is an incredibly powerful tool. But what if you need to make something that’s not a perfect circle? We’ll look into that next time. As ever, feel free to click edges and make it look pretty.