I created a 2d surface that I can perform a linear extrusion on, however the result it obviously a hard edge on the extrusion. I would love to be able to add a bezel - either rounded or at 45 degrees. Is there an easy way?
I created a 2d surface that I can perform a linear extrusion on, however the result it obviously a hard edge on the extrusion. I would love to be able to add a bezel - either rounded or at 45 degrees. Is there an easy way?
There’s lots of ways to round things or chamfer things. Coming from an extruded shape, a basic chamfer is pretty easy, you can do two different extrusions, one a bit shorter than your final piece and one full height, but
offset
inward a bit, and then hull them together:module shape() { square(10, center = true); } hull() { linear_extrude(8) shape(); linear_extrude(10) offset(delta = -2) shape(); }
Though, because of the hull, this will only really work with fully convex shapes. Doing this for shapes with concave features is harder.
For rounding, you can do the extrusion, but with it a bit smaller in every dimension, then
minkowski
with a sphere (or a different shape if you don’t want all the edges rounded), but it’s tricky to get right:module shape() { square(80, center = true); } minkowski() { linear_extrude(80) shape(); sphere(r = 20); }
Thank you. Yeah, the shape is a mix of convex and concave. I might need to just make do for this prototype.