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How can I have this extrusion follow the surface
david_palmer389
Member Posts: 9 ✭
I'm trying to extrude a lip that follows the yellow line below (~1mm down from the existing edge). I have a surface that follows the same edge, but when I set the "second end position" to "up to part" and choose the surface with an offset, it doesn't generate at all. I tried a number of options here but couldn't get it to generate properly.
Document link: https://cad.onshape.com/documents/d510dbd7307b54b45d9cc9eb/w/b0d62cebe1f413113a007c05/e/c83f2f7bae88836f0cd0fbe5?renderMode=0&uiState=677d4ca42848125117783a16
0
Answers
Have you tried up to face or up to vertex?
Yes, but I'm not sure how either of those can be made to handle the different heights in a single extrusion.
I've managed to get the lip as desired with two extrudes: one to fill the entire gap with material, and another to remove the extra material. However it seems like it should be possible in a single extrude, or not?
There is more than one way to skin a cat. Extruding up to some object is one. Creating the whole enclosure in one piece and then split it by some suface object or by boolean intersection, or by means of a projected sletck curve might be other, more powerful methods.
You can do it as a single extrude by setting the starting offset to the top of the wall. The second end position then becomes the gap size.
I may be missing something, but it seems that those settings result in the extrusion only occurring on half the surface, depending on which shadow face I select for the offset
Sorry was going to amend my comment but I had to wait for approval. Extruding down from the top surface should work for that. I swapped the Up to part direction, removed the second end position, changed the starting offset to be a face on the top part and added an offset direction.