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Overhangs

Overhangs are an important limitation to consider for 3D printed footwear. To ensure the best quality for every shoe, we have guidance on where you need to check for overhangs on your model when submitting a design to Zellerfeld.

Please, rotate together the shoe and the plane surface from the template file by the printing angle around the y-axis, to be in the printing position.

Printing Angles:

  • 120° - Traditional, Modern, Sneaker, Boot, Barefoot 
  • 100° - Slide, FlipFlop 

Excluding the shoe interior and entrance collar region, we check overhangs in 2 regions:

Above support-plane: outside shoe surface cannot have overhangs with more than than 45 degrees. 

Tolerances: regions with less than 10 mm² will be ignored.

Below support-plane: We don't print over the shoe material, the outside shoe below the support-plane should not have hidden faces from the print bed with overhang more than 45°.

Tolerances: regions with less than 10 mm² will be ignored.

The collar should be fully exposed to the print bed!

OVERHANGS TIPS:

When designing for 3D printing, we highly recommend you to slice your model in Cura, Prusa (any slicer) at the printing position (120 degrees) to anticipate any overhangs or issues. Main overhangs issues:

  • The interior of the shoe does not follow the last.
  • The shoe has angular features that are free of overhangs but are not supported (print in the air).

OVERHANGS - FLIPFLOP

Due to the extraordinary nature of geometry in the sole, any overhangs presented in this region (red) should be automatically ignored by the Autocheck.