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Tutorials: 3D printing

Free models, STL files to fix, filaments, prints that don't come out right.

  1. 3D printing: the first layer doesn't stick to the bed, what to do

    If the first layer comes loose, curls up or gets dragged away, the culprit is almost always a dirty sheet, the nozzle height or the wrong profile in the slicer. The checks to make, in the right order.

  2. How to repair an STL file that won't print

    If the slicer reports errors or the print comes out with missing parts, the STL file is probably faulty. How to repair it in Bambu Studio, PrusaSlicer and Blender, and what to do when automatic repair isn't enough.

  3. PLA, PETG or ABS: which filament to choose for 3D printing

    PLA for decorative objects and prototypes, PETG for tough parts, even outdoors, ABS for technical parts that get hot, but with an enclosed printer and a ventilated room. Pros, cons and manufacturers' advice.

  4. Where to download free 3D models to print (and the licenses to respect)

    The most popular sites for downloading free 3D models to print, and how to read each model's license before you use it, modify it or sell the prints. Creative Commons licenses explained in brief.

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