Creating a raised edge

eric_borden595

Hello,
If you look at this drawing: <a href="" title="Link: null">https://cad.onshape.com/documents/c474eddd6d7bd94dd68eb92e/w/56547b004e63720d53780d16/e/f47f36678f72a1f046ace700</a>
I have created a border along the edge of the parts that is higher than the rest of the part.
I created this by offsetting the border 1mm inward and then extruding this 1mm wide area with add to the original part.  This seems to work but...I have run into trouble!
.
It really depends if I can get an offset to work or not.  In this example this method works but in other drawings I have, I can't get the offset to work and I can't creat the 1mm edge to extrude.

Is there another way to achieve what I'm trying to do?
I don't think shell works here because I only want the long edges to be higher and not short ends or the holes.

Thank you.

MichaelPascoe

I'm having trouble opening your link. I will take a look at the document if you share it again.

Here is a custom feature that may help you out:
https://forum.onshape.com/discussion/15129/island-extrude-new-custom-feature

eric_borden595

Ok think I figured this out:
https://cad.onshape.com/documents/c474eddd6d7bd94dd68eb92e/w/56547b004e63720d53780d16/e/f47f36678f72a1f046ace700