this post was submitted on 03 Feb 2025
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FreeCAD

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Your own 3D parametric modeler.

www.freecad.org

FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history and changing its parameters.

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Still pretty new to FreeCAD (and CAD in general), any advice on my design before I 3d print it? (www.printables.com)
submitted 2 weeks ago by [email protected] to c/[email protected]
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The .stl and .fcstd files are at the link. All the test joints I printed fit together really nicely, but I'm worried the overall design might have issues that I'm too much of an amateur to identify. It'll need a LOT of filament... Good wooden marudai cost hundreds of dollars, whereas 1500g of my preferred filament is only like $45, but I'd still hate to waste that much of it. The printing itself I'm not too concerned about, it's easy stuff. Just a little bridging and no support. Of course, that doesn't necessarily mean the finished/assembled object will be functional. Thanks in advance if you have any tips!

PS: This is also my first use of the spreadsheet function, I usually just rely on named constraints from prior sketches. It's really neat. FreeCAD rules!

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[–] [email protected] 3 points 2 weeks ago (1 children)

I build one myself out of wood and magnets. I don't have any comments on your model, but just be prepared for a lot of sanding of the top plate, otherwise the threads will catch.

[–] [email protected] 1 points 2 weeks ago (1 children)

By magnets, you mean that there are parts on yours that are held together that way? That's actually very reassuring, I wasn't sure how strong the connections had to be or how much force these things are generally under.

[–] [email protected] 2 points 2 weeks ago (1 children)

Only magnets, actually. The design is similar to yours; a top plate, four legs and a base.

I drilled four holes in the base and the top, holes in either end of the legs, glued neodymium magnets in all the holes (be sure to get the polarity right :) ). The whole setup is loose and can wobble a bit, but not enough to actually impede usage.

[–] [email protected] 1 points 2 weeks ago

Wow that's amazing! Maybe I should incorporate some holes for magnets into this, just in case the existing fit isn't enough.