Every Tinkercad OBJ export contains files called tinker.obj and obj.mtl.
This page renames them after each zip file (for example, 4-Jordan-Keychain.zip becomes
4-jordan-keychain.obj and 4-jordan-keychain.mtl) so you can tell which model belongs to which student.
Your files stay on this computer. Nothing is uploaded.
Drop student zip files here or click to choose them
You can select many at once.
Original file
New name
Status
How to use
Students export from Tinkercad (Export → .OBJ) and rename the zip to
Period-Name-Project.zip, e.g. 4-Jordan-Keychain.zip.
Drop all the zips on this page. You can edit a name in the box if a student named the file wrong.
Click Save renamed files. In Chrome or Edge you pick a folder (you can make a new one, like
“Period 4 prints”) and the renamed files go straight into it. In other browsers they download one by
one into your Downloads folder; if the browser asks whether to allow multiple downloads, choose Allow.
If two zips contain the exact same model (a student submitted twice, or copied a friend's design), the
second one is marked Same model as ... and isn't saved. Click Save anyway if you want it.
Open the .obj files in your slicer (Bambu Studio, Cura, PrusaSlicer, ...).
Each .obj is updated to point to its renamed .mtl, so colors still load.