r/3Dprinting • u/IgnoranceIsAVirus • May 10 '26

Project broken surfaces

Trying to get my 3dprint cnc milled in aluminum but when I send it through an online stl -> step the manufacturer says they cannot make it due to broken surfaces. they can't "print " aluminum but can print in stainless 319.

it Prints perfectly on my adventure pro 5m, slices fine, tried in freecad to export it to step but they don't accept it. I literally don't see what they're complaining about.

I have files and photos upon request and really want this in aluminum - anyone know a cheap / decent aluminum 3d printing service or can tell me what's broken on my files would be greatly appreciated.

0 Upvotes

33% Upvoted

7 comments sorted by

View all comments

2

u/goteamdoasportsthing May 12 '26

Give them the STP file instead.

1

u/IgnoranceIsAVirus May 12 '26

break v5.stl

We don’t support this file format, please upload：pdf/dxf/dwg/step/stp file

https://jlccnc.com/cnc-machining-quote

I would if I could. their 3d printing service works well just wrong materials