POWERWASP simple extruder upgrade

by Mgmatteo, published

POWERWASP simple extruder upgrade by Mgmatteo Dec 5, 2012
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Spring loaded pressure plate for uniform feed regardless of filament thickness

See it in action during a fast retraction http://youtu.be/HMMkCDL2KWM


More info in my blog: http://mcmos.wordpress.com/2012/12/12/power-wasp-extruder-upgrade/

What you need:
1 spring (11mm diameter)
1 M5 bolt longher than 7cm
2 printable caps


  • cut the head of the bolt to obtain a 6cm long thread
  • cut the spring and keep a 3,5com long piece
  • print the two caps
  • untwist the original retainer and substitute the threaded screw with the new one (longher)
  • thread the lower cap, the spring and the upper cap
  • put back the original retainer


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Would you share the up to caps a STL file of black color cylinder parts?