Parts studios & shared dimensions

CaptainBisquick

Am I supposed to build all my parts in one studio, or each part in a separate studio? It seems like it will be more difficult to model parts that fit together if I can't view the complimentary part while designing the new part. And what if I want to use the complimentary part for external reference?

I looked for tutorials on using parts studios, but I don't see any covering this part of the workflow. I've seen the one that shows how assemblies work, but that doesn't seem to address my questions.

traveler_hauptman

Generally you can treat a studio like a top-down assembly. All related parts with common interfaces, shared dimensions, related features, all go in the same studio.

Onshape is in progress so some of the capabilities needed to make this approach work well are not yet implemented. External references is the main missing capability. So we don't yet have relationships between part studios (neither same document nor external documents). But it's coming.

traveler_hauptman

Generally you can treat a studio like a top-down assembly. All related parts with common interfaces, shared dimensions, related features, all go in the same studio.

Onshape is in progress so some of the capabilities needed to make this approach work well are not yet implemented. External references is the main missing capability. So we don't yet have relationships between part studios (neither same document nor external documents). But it's coming.

3dcad

I tend to create all static (ie. not moving on each other) in same part studio, this saves time not needing to create fastened mates (just use group).

But the beauty of Ons is that you can make how ever you wan't - if you like you can create each part individually like traditional cad - or create multi-part design - you make the decision, not software.

christian_jørgensen

How can two parts share the same sketch? I have a base sketch which should be used for two connecting parts. Is this possible?

Narayan_K

christian_jørgensen, There are many ways.

1. You can copy the sketch and paste in required plane.
2. you can project one sketch to other parallel plane using "Use" command.

Here the one discussion which is similar to your problem.
https://forum.onshape.com/discussion/comment/9252/#Comment_9252

andrew_troup

Check out this video:
https://www.onshape.com/videos/essentials-multipart

It's a revelation (and I don't say that lightly)

christian_jørgensen

Wow great - thanks for the tips! I also found the "Derived" function useful - creating a new part studio and choosing a derived sketch from another part studio. Making changes to the original will be inherited....brilliant 

peter_hall

I too am starting to see the advantages to designing together in one parts studio and then when bringing into the assembly drawing creating a group for all the parts rather than using fastened mates. Then using assembly to create mates between the groups. Saves a lot of agro time picking all the mates.