What is the best way to extract or make a sketch of this profile?

karl_mochel

I tried to use Use but got the "Some of the face edges could not be used in the sketch." message.

Here is the model sectioned showing the profile I would like to capture.

https://cad.onshape.com/documents/464ccf321775c0526bce1327/w/8b035c02ebfcadaba0ab6eb1/e/27a930c03c0030f68283a012?renderMode=0&uiState=66156387cb50b056fd9dc9bf

Thanks, K

MichaelPascoe

The best way will be to manually sketch it while viewing it in section view like you have it. Once you have the general shape constrained properly, you can attach the vertices to the important vertices of the mesh; then delete those constraints and add dimensions. It's kind of a swapping technique: constrain to model, delete external constraints, add dimensions. This will ensure the profile is the exact size of the original reference.

MichaelPascoe

The best way will be to manually sketch it while viewing it in section view like you have it. Once you have the general shape constrained properly, you can attach the vertices to the important vertices of the mesh; then delete those constraints and add dimensions. It's kind of a swapping technique: constrain to model, delete external constraints, add dimensions. This will ensure the profile is the exact size of the original reference.

karl_mochel

Thanks. Not the workflow I hoped for, but one I guess I can follow.

glen_dewsbury

An other way would be to split part at an existing plain. That will produce a face that can be selected with use. If you need to make other adjustments to initial profile then delete constraints and add dimensions as needed.
https://cad.onshape.com/documents/17b4baf74acd3d725983d877/w/8e0a938dd2898057f15a9ec4/e/39ce3ec3d549ddb474572016

MichaelPascoe

Nice approach @glen_dewsbury! I didn't think to do that. Back when they first introduced mixed modeling, I wanted to make a profile extractor feature, but to my knowledge, we still can't access meshes with FeatureScript.