1. Upload Failed - Troubleshooting Steps
If your file upload fails, try these troubleshooting steps:
2. Common Causes & Solutions
1. File Too Large — Maximum file size is 100 MB.
Reduce file size by lowering STL resolution/triangle count, compressing the file to .zip format, or splitting large assemblies into separate files.
2. Unsupported File Format — We accept STL, OBJ, STEP, 3MF, and most CAD formats.
Export your file as STL or OBJ for best compatibility.
3. Network/Connection Issues — Slow internet or connection drops during upload.
Try again on a stable connection, use a wired connection instead of Wi-Fi, or try a different browser (Chrome recommended).
4. Browser Issues — Ad blockers or privacy settings may interfere.
Disable ad blockers for makelab.com, clear browser cache and cookies, or try incognito/private browsing mode.
5. Corrupted File — File may be damaged or incomplete.
Re-export from your CAD software, verify file opens correctly on your computer, or try converting to a different format.
3. Still Having Issues?
If uploads continue to fail:
- Submit a support ticket describing the error
- Include: File name, size, format, and browser used
- Attach screenshots of any error messages
- Our team can provide alternative upload methods (Dropbox, Google Drive, WeTransfer)