How can I edit a specific area on a stl file I imported. I need help!!!

erik_hsu

I imported a stl file from Bento3d design website. When I import the file for some reason in inside of the box has added material so it's not all equal on the inside. I have already printed the the tray that slides inside this box, but with how it is now the tray would not fit inside. I can't edit anything because it won't let me select a specific area, and also when imported it says "imported parts contained faults". 

robert_scott_jr_

Erik, usually it is helpful, sometimes necessary for a member to post a link to the document in question to attain assistance. - Scotty

erik_hsu

Sorry Robert, that does make a lot of sense. Brand new to all this. LOL 
Let me know if there is a better way to share this document where people have access. Thanks. 

https://cad.onshape.com/documents/6a8f1a575aa236945b583531/w/1e2cd972eeb7c0ce769d80f1/e/0277ce49ea67191b20d2aa63

erik_hsu

https://cad.onshape.com/documents/6a8f1a575aa236945b583531/w/1e2cd972eeb7c0ce769d80f1/e/0277ce49ea67191b20d2aa63


Sorry about that, new to all this. 

robert_scott_jr_

Erik, the STL file you've imported is not editable in Onshape. However, considering the part's simplicity, this is an ideal opportunity to recreate it on your own.  - Scotty

Supported File Formats (onshape.com)

nick_papageorge073

A general rule of them is stl files are not editable, in any mechanical CAD program. If they are not exactly what you want, just move on.

STEP files are the best format to download. They are editable in any mechanical CAD program. Unfortunately, most of the 3D Printing Share sites encourage users to upload stl files. It makes zero sense to me.

S1mon

STL files have been editable for a while. Not in the traditional sense, and they are very twitchy, but it's very possible to do some mixed modeling to hack something. Personally, I would probably remodel something like this, but here's a mixed mode model (mesh+NURBS) which solves the original issue.

Extrude 1 fills in the defective shell. Extrude 2 hollows it out again with neat corners.

https://cad.onshape.com/documents/c214f46c7d421c00d8dc2dfc/w/6693256a7950bb9c3fdd7d60/e/8481ae60efd8aa722c3ccee3