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Convert DAE (Collada) to STL
Slicers read STL numbers as millimetres, but a Collada file can be in inches, metres or anything else. The usual result is a model that opens 1000 times too small or 25 times too big. This page reads the unit from the .dae, writes the STL in real millimetres and stands it on the build plate.
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How to use it
- 1
Add the .dae
Drop it onto the box or click to choose it. Textures are not needed: STL holds geometry only.
- 2
Check the size
The unit from the file is applied and the size readout shows the result in millimetres.
- 3
Pick the STL type
Binary is smaller and works in every slicer. ASCII is plain text.
- 4
Download the STL
Open it in Bambu Studio, OrcaSlicer, PrusaSlicer, Cura or any CAD tool.
What to know before you convert
- STL keeps only the triangles. Colours, textures, materials, part names and animation are dropped.
- All objects in the file are merged into one STL, in their placed positions.
- The mesh is not repaired. SketchUp models are often not closed (watertight); the info panel shows open edges so you know before slicing.
- Lines, points, lights and cameras in the file are ignored. Collada 1.4 and 1.5 are supported.
Don't have a model?
Create one with AI from a photo, a sentence or a sketch. The generators use credits; this converter is free and stays in your browser.
Frequently Asked Questions
SketchUp often exports Collada in inches, other tools in metres, while slicers read STL numbers as millimetres. This converter applies the unit written in the .dae and outputs millimetres, so the size in the slicer matches the design.
No. Collada files declare their up axis. It is applied, and the model is then turned Z up for slicers and placed on the build plate.
Architectural and SketchUp models are often made of single faces with no thickness. The converter keeps the surface as it is and reports open edges. Give walls thickness or repair it in your slicer before printing.
No. STL has no colour or texture, so only the .dae is needed.
Convert to STL here, then use our STL to 3MF tool. The 3MF stores the unit so the size cannot be misread later.
No. The page reads the file and converts it inside your browser with the open-source three.js library. Nothing is sent to our servers, there is no account, and no credits are used. Closing the tab discards everything.