solidworks >> Combine Subtract Diffrence

by outoftherealm » Tue, 21 Dec 2004 05:45:31 GMT

I am trying to create a set of threads for a nut and bolt. I have
created the threads on the bolt and now am attempting to do a combine
on the nut. I cant seem to get it to work. It selects the whole diagram
each time I try to do this. It seems like I need two bodies in the
solid part to accomplish this but cant figure out how do this.

I am new at this and feel stupid can someone explain the process in
small words :)

Thanks!


solidworks >> Combine Subtract Diffrence

by CS » Tue, 21 Dec 2004 06:16:13 GMT


To do a Combine you have to have multiple bodies and combine them. If you
want your nut to have the exact contour of the bolt you have some options.

1. Insert>Part (find your bolt file and place it into your nut part.)
move the bolt as desired by any series of Insert>Features>Move or Copy
Body
Combine/Subtract the bolt from the nut.

2. Sketch the threads in the nut part and use a cut feature Insert>Cut and
you have a few options. You can do a helix using cut sweep or a cut revolve
for a simpler thread.

3. For easier mating in assemblies you can create it using the hole
wizzard. this will leave you with a simple looking hole that will have
"Cosmetic" threads (these show up in your drawing as drafting standard
threads) Then setup a Mate reference to one of the edges where the face of
the hole and one of the flat faces meet. Then when you insert it into an
assembly it will auto mate itself concentric and coincident to a close by
hole saving alot of time screwing around in assemblies with mates.

Regards,

Corey

solidworks >> Combine Subtract Diffrence

by P. » Tue, 21 Dec 2004 19:06:27 GMT

When you created the nut in the SAME part that you created the bolt
with threads did you UNCHECK the merge bodies checkbox?

The bigger question is why are you modeling threads because they are
terribly hard on performance?

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