Simplest possible loft, but can't apply shell

frank_paynter

Cat Slow Feeder Insert | Part Studio 1

This seems like a pretty simple geometry, but the shell feature fails. What am I doing wrong here?

TIA,

Frank

john_lopez363

@frank_paynter …. the problem lies with those tiny little line segments you used to connect the ends of your arc's together in your Sketches. In order for a Shell to work based on your current Sketch design the thickness of the Shell cannot exceed 0.2mm.

This begs the question, why not just use a simple Slot sketch feature to create your basic shape?

glen_dewsbury

Why not an extrusion with draft?

https://cad.onshape.com/documents/648385a4c127dd2a6099bda4/w/b36445d350e13f6573f33a1e/e/93f88594c4802f5501fc064a

EvanReese

I agree that if you fix the little edges it's more likely to work. It looks like you used loft to get a subtle s-curve on the surface. You could also consider a single sweep to make the outer wall. That way you have very fine control over the shape of that s-curve.

glen_dewsbury

Last post was just an extrude. Here it is with a loft with ends tangent to sketch plane.

I agree that the little lines are adding detail that's likely not needed. If you need better control of the profile I'd go with Evan's sweep plan.

https://cad.onshape.com/documents/648385a4c127dd2a6099bda4/w/b36445d350e13f6573f33a1e/e/93f88594c4802f5501fc064a