I’ve made a large number of custom prints, and all of them were created using TinkerCad. It’s an amazing toolkit, stupid easy to use but versatile. That is … until something needs a tiny adjustment somewhere. That’s when I feel it would’ve been neat to use parametric CAD instead.
I have spent many hours following Youtube tutorials for Onshape, Fusion, and FreeCAD. Tutorial shapes like a LEGO brick are fairly easy, although I admit that this kind of modeling is a sharp departure from the kid-friendly TinkerCad.
My problem is that I don’t want to make simple coasters or keychains, but complex shapes like this one. It’s a holder/mount for two different kinds of walkie-talkies that I use, and the blue part slides into a tray in my car’s dash where it sits nice and snug.
Question: How the hell do I even get started modeling something like this?? There’s not a single straight cuboid here. Everything is slightly wedge-shaped.
The way I do this in TinkerCad is that I build the hollow first: I made a 3d model of the walkie, a little oversized, set it be hollow, and drop it into the shape - that’s the red or orange shells you see.
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I model exclusively with OpenSCAD and a shit ton of math. (Full disclosure, for some of the most absolutely complex things I’ve done, I’ve written Go code to generate OpenSCAD code. But it’s not often that I need that.) And I make some pretty complex things. I’m currently working off-and-on on a 3d-printable mechanical keyboard, for instance.
OpenSCAD, in case you don’t know, is a straight up programming language for doing CAD. It doesn’t even provide you the option to adjust anything with the mouse.
It’s hardcore, but it does the job.
Do yourself a favor and learn FreeCAD!