Ultimaker 3 Hotend Insulator Mold

Project Summary

This is a replacement for this part from fbrc8.com.



My replacement is a little wider, thicker, and is identical on both sides.

Project Details

Couple of notes:

  • Make sure the sandwich plate is oriented correctly.
    • If flipped the wrong way the walls will be too thin.
  • Make sure you use heat resistant silicon.
  • Make sure that you use aluminum so the plates seal correctly.
    • The sandwich plate can be steel.



  • 10 Sets of 10mm Nuts and Bolts
  • Hydraulic Syringe
  • Heat Resistant Silicon
  • 2 Pieces of Aluminum Stock
    • at least 51mm x 140mm x 4mm
  • 1 Piece of Aluminum or Steel Stock
    • 51mm x 140mm x 0.8 mm
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