Unable to extrude sketch

emil_rydberg

Hello,

I'm relatively new to CAD modeling and Onshape. Currently, I'm working on modifying an adapter to suit my requirements.

In the provided project link, my objective is to extrude (cut) "Sketch 1" from "Part 1" and replace the removed section with "Part 2". It's worth noting that "Part 2" was created using the extrude "New" feature using a vertex. Currently, I can only use "New" with the extrude on my "Sketch 1". 

Here's a clearer breakdown of what I aim to achieve:

1. Extrude "Sketch 1" to a thickness of 2.5mm (if possible).

2. Rotate the extruded part by 180 degrees.

3. Union the two resulting parts together.

Feel free to ask questions if I make myself unclear.

I'm wondering if there's a simpler way to accomplish this task. You can access the project through the following link:

https://cad.onshape.com/documents/6bb1a219f659f777afcda948/w/2d33793328c74f43788ed011/e/deeea2a982206634a8e7576c?renderMode=0&uiState=65b38242b95fbc6bda6ca46a

robert_scott_jr_

Hello Emil. The reason you cannot Extrude Remove and only Extrude New is because it is an STL file and you cannot interact with it in Onshape. Onshape deals with solids and surfaces; Part 1 is neither. You may be able to go to the source of your file and see if it is available in another format that you can use in Onshape. Another option is to remodel it yourself; you are well on your way. Yet another option is to do a a search of Onshape's Public documents to see if it's already been modeled by another Onshape member. - Scotty

S1mon

Onshape has been able to do "mixed modeling" for over a year, wherein mesh models can be modified by parametric solid and surface features. It can be twitchy, but it does work.

Improvements to Onshape - April 25th, 2022 — Onshape

emil_rydberg

robert_scott_jr_ said:

Hello Emil. The reason you cannot Extrude Remove and only Extrude New is because it is an STL file and you cannot interact with it in Onshape. Onshape deals with solids and surfaces; Part 1 is neither. You may be able to go to the source of your file and see if it is available in another format that you can use in Onshape. Another option is to remodel it yourself; you are well on your way. Yet another option is to do a a search of Onshape's Public documents to see if it's already been modeled by another Onshape member. - Scotty

Ah, okey. That seems to be the case in my situation. I did end up solving it, but I believe there is a quicker way. Here is a link to the document where I fixed the model. I also added threads for each hole, which did end up taking a lot more time than I anticipated. I had to first extrude a small portion of each hole, then use extrude to later on use ThreadCreator on. 

https://cad.onshape.com/documents/6bb1a219f659f777afcda948/w/2d33793328c74f43788ed011/e/deeea2a982206634a8e7576c?renderMode=0&uiState=65b68e8b275b086e44b6d044

emil_rydberg

S1mon said:

Onshape has been able to do "mixed modeling" for over a year, wherein mesh models can be modified by parametric solid and surface features. It can be twitchy, but it does work.

Improvements to Onshape - April 25th, 2022 — Onshape

This might be what I am looking for, although I did end up resolving it. I am convinced that the way I accomplished this is not the best, and there's got to be a quicker and better way. Will definitely look into this though. Thanks for your effort

emil_rydberg

I have another issue regarding extrude "remove", although for another file. This file has a bunch of surfaces which I have made a composite part of. If possible, I would like to get help with this aswell. I am a beginner and have still much to learn, and appreciate any help given
For this one I have a video and hope this will make things clearer.

https://streamable.com/i0yt7e