How do I form tabs and add nubs in a circular pattern and then raise a flat surface?!

mark_cunningham

I have what is called a center cap for a wheel where there are tabs with humps in them for snapping into place. Im finding it difficult to add the tabs with the nubs in a circular fashion and keep the tabs from protruding into the top surface area. tabs are 10.60mm wide x 11.65mm long with relief cuts. https://cad.onshape.com/documents/ac54572a0eefe3e287700a33/w/6e7c2d8f252120143c1c4ed9/e/7809c23d60e8fda54c360d23

Jake_Rosenfeld

@mark_cunningham

I think this part is much easier to build by revolving cross sections than be extruding profiles:
https://cad.onshape.com/documents/fa64f1273cef6a19aa67e5f6/w/15c025c1ffad1aac9a5dccbe/e/4654b2310a878364e7864b7f

To explore how I built this design, feel free to copy my document, and then use the rollback bar to step through the features I used to build the part (editing those features will show you the parameters I put into them)

I didn't really bother with correct dimensions, just an example of how to mock up something like what you showed:

VinceHaley_SkillCoach

@mark_cunningham, have you found a modeling solution? I've got a few tips to offer if the need is still there. Also please provide a picture of the front of the cap for additional reference.

Jake_Rosenfeld

@mark_cunningham

I think this part is much easier to build by revolving cross sections than be extruding profiles:
https://cad.onshape.com/documents/fa64f1273cef6a19aa67e5f6/w/15c025c1ffad1aac9a5dccbe/e/4654b2310a878364e7864b7f

To explore how I built this design, feel free to copy my document, and then use the rollback bar to step through the features I used to build the part (editing those features will show you the parameters I put into them)

I didn't really bother with correct dimensions, just an example of how to mock up something like what you showed: