sdf

Try out fogleman/sdf[1]. It is like OpenSCAD in many ways but the distance field model gives you offsets and fillets more easily. [1] https://github.com/fogleman/sdf

Just a quick diff between your list and mine, apologies if I missed them or if there is a reason to exclude these: - https://github.com/nickc92/ViewSCAD - Matt Keeter's stuff (listed here https://www.mattkeeter.com/projects/, including https://github.com/mkeeter/antimony and https://www.mattkeeter.com/projects/ao/, though I see you have libfive) - https://solvespace.com/index.pl - https://mirmik.github.io/zencad/en/ - https://github.com/fogleman/sdf This is from a list entitled "migrate away from OpenSCAD", but somehow I can never manage to do that... Thanks for this site!

> Basic things like 'hollow this object out, leaving a 3mm shell' are nearly impossible. Yeah, I think that's a consequence of how they're constructing the objects. But things like signed distance fields make that easier* because it'd just be "expand the SDF by 3mm" - https://github.com/fogleman/sdf has `shell` for this. * if you can wrap your head around the math/geometry, I guess

> https://github.com/fogleman/sdf Holy crap, why have I not seen this before?!?!!? I was even planning to start coding something like this myself. This is awesome! Thanks!!!!

> Which I reckon is me being too used to cli-tools and hardly ever going outside the cli world You might get some mileage out of OpenSCAD if you can define your object parametrically (I used it to make a Switch controller middle-bit.) Or there's stuff like https://github.com/fogleman/sdf which I've used to make resin-printed buttons for my mother. (I also cannot get the hang of Blender despite dipping into it for a couple of weeks every year since about 2013.)