What is brim in 3D printing?

A brim is a thin „collar" around the first layer of the model. It increases contact area with the bed - prevents warping on tall or narrow parts.

When to use

  • Tall narrow parts (towers, columns)
  • Thin model legs
  • ABS/ASA (warping prevention)
  • Poorly adhesive materials

Parameters

Brim width: 5-10 mm (4-8 brim lines). After print, easily removed with a knife.

Brim vs. Raft

Brim = adds area around the model. Raft = whole plate under the model. Brim uses less material.

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