Exporting Part As STL Results In Missing Walls Of Part

trihardert

Hi all,

I haven't come across this before and it's got me stumped!

I've created a drinks bottle holder for my TT bike. I made one half in OnShape and then the final step was to mirror it and boolean. When I export as an STL (mm, binary, fine), the original half looks like it has a wall missing when I preview the file or upload to online printing services, however the mirrored half looks fine.



I then tried deleting the original half and mirroring the mirrored half. On export, the same issue occurs in the same place as in the original export. I've tried with a hollow version and a solid version and it's the same issue.

Any help would be much appreciated... I don't have a 3D printer myself so I want to make sure it's OK before sending to get printed!

Here's the file: https://cad.onshape.com/documents/3f397a1ed12c09c983dd97b2/w/90b3e158c6b448501264c486/e/7fe1a645850a16a47253f727

Many thanks,

Tom

_anton

As a quick workaround, you could set resolution to custom and fiddle with the settings. E.g., set chordal tolerance to 0.05mm.

_anton

As a quick workaround, you could set resolution to custom and fiddle with the settings. E.g., set chordal tolerance to 0.05mm.

_anton

(Also, you can file a support ticket so we can track this issue.)

trihardert

Hi @_anton,

Many thanks for your answer. Changing the chordal tolerance did indeed fix the issue I was seeing. I'll bear this in mind for future exports.

Thanks again,

Tom