topic Re: Is there a way to extrude cut from a surface? in 3D Part & Assembly Design

Is there a way to extrude cut from a surface?

ghertyish — Fri, 04 May 2018 18:10:21 GMT

Hi, I'm trying to model the internal surface of the mouse http://h30434.www3.hp.com/t5/image/serverpage/image-id/53769i14FB8210D5BCAA52/image-size/original?v=mpbl-1&px=-1, I have this model which I've solidified because the rest feels solid:http://imgur.com/5nZxPh7

Re: Is there a way to extrude cut from a surface?

neomechanikos — Thu, 02 Jan 2014 17:32:20 GMT

There are several ways to approach it:

Do a thicken instead of solidify
Offset all of the inner surfaces, merge then do a solidify (remove)
Copy all inner surfaces as one, offset then solidify (remove)
Instead of thicken or solidify at first, offset the surfaces, merge, and then solidify the shell.

It really depends on how you want the inside geometry to appear. Merely offsetting the surface can lead to problems in areas of tight curvature and may not be conducive to the manufacturing process.

Re: Is there a way to extrude cut from a surface?

neomechanikos — Thu, 02 Jan 2014 17:36:37 GMT

Few more. You can also:

Extrude cut up to the offset surface. Cut from the bottom up to the offset surface.
Surface replace using the offset operation. But that may be difficult to do here.

Re: Is there a way to extrude cut from a surface?

ghertyish — Thu, 02 Jan 2014 18:06:39 GMT

I don't know if I followed your method exactly but your combinations of offsets, thickens aand soldifies really helped. I offset the surface and solidified it, then trimmed the top part from the outer surface and thickened the remaining outer surface to meet the inner solidified surface. So thanks