Cutting teeth into non gear object

connor_williams168

I am working on modeling a plastic part that is wearing out that we cannot get a replacement for so I can 3d print a new one. I have most of it done, but i need to cut teeth into the inside of a lip from an extrusion and cannot figure out how to do this. I would think the easiest way would be to select the outside face of the extrusion, model the tooth pattern and duplicate it around the face, then do a remove extrude on the plane toward the center of the object. Including some reference pictures of the object so you can see what I am trying to describe. I am new to Onshape so I am sure I am just doing it wrong or designed the model wrong from the start.

Model

https://cad.onshape.com/documents/3849039256c164c5bb79a1f5/w/574055ac31a79c25f6a1a45c/e/fc952284626712079231dee6?renderMode=0&uiState=68cda482978eba129cdb3d45

Matt_Shields

there has to be a more elegant solution, but here was my quick stab.

https://cad.onshape.com/documents/9c239e76d358bff2ce6983d0/w/1f436b1d03a437e06d0fcc14/e/f0e84db0fad7bab7ca6da4a4

EvanReese

Feels like a job for the Wrap feature

connor_williams168

That isnt half bad. So you used a loft and fill to do it additively. I was going to try and do it the other way around. I will play around with that concept and see what i come up with.

martin_kopplow

I'd just use one of the FS-tools to make a suitable gear, then use extrusions and intersections to make it into the part.

https://cad.onshape.com/documents/886a4d9de4be6e68772a795f/w/dca343553e901ebf9afecc32/e/67828b2306c68f4059f59690?renderMode=0&uiState=68d10f4e15447bac659aa316