Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.

First time visiting? Here are some places to start:
  1. Looking for a certain topic? Check out the categories filter or use Search (upper right).
  2. Need support? Ask a question to our Community Support category.
  3. Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
  4. Be respectful, on topic and if you see a problem, Flag it.

If you would like to contact our Community Manager personally, feel free to send a private message or an email.

Offset Constraint for existing lines

thomas_aathomas_aa Member Posts: 19 ✭✭
I often end up sketching parallel sections of lines for inner and outer surfaces of objects. Sometimes I know that this will happen and use the Offset tool from the start. Other times I realize this after sketching a number of lines. In this case it would be handy to be able to add the offset constraint after the fact, instead of drawing construction lines with Equal constraints to get the offset behavior.

Please make it possible to apply "Offset" as a constraint to existing lines/line groups.


  • john_mcclaryjohn_mcclary Member, Developers Posts: 3,693 PRO
    Instead of drawing the offset lines. Use the offset tool instead.

    If you need to add additional lines to the same offset. Then use the offset command again for the new lines. Then delete the offset dimension and constrain one of the end points of the old offsets with the new offset. This will allow you to only need the original offset dimension
  • mahirmahir Member, Developers Posts: 1,213 ✭✭✭✭✭
    I've occasionally had similar thoughts over the years. But unfortunately, I don't see this happening. It's a pretty niche feature that generally speaking would be a slight convenience but isn't really necessary. Deleting your existing lines and creating a new offset isn't fun, but it's not terrible. I don't know of any other CAD, and I've used pleny, that allows this. 
  • romeograhamromeograham Member, Simulation EVP Posts: 609 PRO
    One feature that I really miss from SW is the ability to replace references for constraints. I am pretty sure this worked for sketch offsets too....so when you change your geometry and the offset fails (as it should) you could say "now offset from this line instead of that old one"...

    It worked pretty well, I think.

    I haven't worked much in SW for the last couple of years, so I don't know if this feature has gotten better, or was just a figment of my imagination in the first place!
Sign In or Register to comment.