Sugru Hotend Insulation for Rep2
thingiverse
Sugru, resistant up to +180°C, proved a suitable insulation material. The existing insulation was removed from the heat block after disassembling the extruder, followed by thorough cleaning. A 1.5mm Sugru layer was applied around the assembly, ensuring space for future nozzle swaps. Kneading the Sugru well is crucial to avoid air bubble expansion and insulation destruction; curing lasted 36 hours. After reassembling the extruder and re-leveling the build plate, improved heating efficiency and reduced heat pollution were observed, with no immediate print quality changes.
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