Try it on your next print
Deep 3D Print for iPhone and iPad.
STL check and repair
Know if your model will print, then fix it
Import an STL, OBJ or 3MF, or generate a new model: Deep 3D Print analyzes the mesh for printing and repairs it only when you ask. Importing and analyzing your own files is free.
How it works
- 1
Import your file
STL, OBJ or 3MF up to 64 MB. Size and orientation are kept: millimeters, Z up.
- 2
Read the analysis
A printable badge, the issues found and tips based on your printers.
- 3
Repair what you choose
Close holes, fix normals, remove fragments, add a flat base. The cost is on the button.
- 4
Export
STL, 3MF or GLB of the version you are looking at, or send it to your slicer.
What the analysis checks
Every model, generated or imported, is checked for the problems that make a print fail.
- Holes: open edges that keep the mesh from being watertight
- Inverted normals: faces pointing inward that confuse the slicer
- Loose fragments: floating pieces under 1% of the surface
- Thin walls: under 0.8 mm, too thin for most nozzles
- Bed contact: less than 25 mm² resting on the plate
- Overhangs: surfaces steeper than 45° that need supports
Repairs you control
Choose what to fix. The flat base cuts at most 2% of the height so the model sits on the plate. Each repair creates a new version, and the original is always kept.
Thin walls and overhangs stay advice: you decide whether to scale up the model or add supports in the slicer.
Tips for your printers
Save your printers and nozzles in My Lab and the tips adapt: supports, brim or flat base, scale for thin walls, whether the model fits your build volume and how much filament it needs.
Questions
Is the STL check free?
Yes: importing and analyzing your files is free. A repair uses credits, and the cost is shown before you confirm.
Does it change the size of my file?
No. Imported models keep their size and orientation.
Which formats can I import?
STL, OBJ and 3MF up to 64 MB. The colors of a 3MF and its slicer painting are imported too.
Will every model print after the repair?
No tool can promise that. The repair fixes the mesh; thin walls and overhangs depend on scale, supports and your printer, and the tips tell you what to do.
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