How to add a Draft to an Imported Part (Newbie!)

jmone

Hi, Apologies up front for such a newbie question.  I've found a nice model of a coin and I'm trying to apply a draft to it without success.  The part is https://cad.onshape.com/documents/d0f9a42a6c209dd76bd75d80/w/22365bdf355c7cd22965db5e/e/864d4e02a447108fa4b7c473  

Any tips would be much appreciated as I've tried and failed to resize the top face (can't seem to do this), extruding it (but I only get the face not the rim), move face (but no draft option).

Thanks
Nathan

EvanReese

You probably could find a way to edit the imported model, but I don't think there's a way to do it that's not harder than just making a new model and referencing it. It took me 5 actual minutes to build a new one, since I know my way around Onshape pretty well. Here's how I'd do that:
https://cad.onshape.com/documents/6e1028d7316eac384b00295c/w/239f3ed2b1b1dcce0f5bdd44/e/0df765505c99a5b7cd56a579

S1mon

In theory Onshape should be able to apply draft to all the vertical surfaces and re-apply the fillets as needed. However, this is a very simple model. I would just redo this as a native Onshape model. Sketch a circle, extrude it with draft, sketch the scallop and extrude/remove it with draft, do a face pattern and add the fillets.

eric_pesty

Just had a look and you can literally just box select all the vertical faces to apply draft. However the regen time was 175sec so it just takes patience!
https://cad.onshape.com/documents/fd188d66e76e0192d05bd68f/w/adbd805f69771be7bd1dc2dc/e/ce66d261f351d371cd50c140?renderMode=0&uiState=6329df447ae85f423ec80104

Alternatively you can cut the part to just one "slice", apply the draft and circular pattern again: https://cad.onshape.com/documents/fd188d66e76e0192d05bd68f/w/797f237167a8a2dea419104d/e/ce66d261f351d371cd50c140

But it's still more work than re-creating it from scratch... You can also use some of the existing geometry like this (rather than starting completely from scratch): https://cad.onshape.com/documents/fd188d66e76e0192d05bd68f/w/e24077367696f61b05a91b11/e/ce66d261f351d371cd50c140?renderMode=0&uiState=6329e6ce7ae85f423ec8222c

jmone

Thanks for the all the support, I really appreciate it!  FWIW, I'm using a Fiber Laser to create (among many things) to carve graphite moulds for metal casting.  Drafts are important but in this case I may get away without a draft as it is so shallow.