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Creatr (simple) nozzle cooler

by morieris Oct 28, 2014
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What is the induction sensor fixed to the support ?

I always had problems with the accuracy of the z-homing, so i did a rebuild, details can be found right here: http://www.thingiverse.com/thing:519773

Creatr z-Homing redesign

how did you connect the fan? Do you have a guide or some tips for that?

Actually the Creatr electronics board already has an output for the connection of a nozzle cooling fan. The PWM output is located at the innermost terminal of the terminal block, where the heater elements are connected too. The PWM output will just open/close a connection to GND. I used a small step-down module to get a +12V supply for the fan and added a flyback-diode to be an the safe side. An additional fan-attenuator makes the fan run a lot smoother.
This way the fan will be speed controlled according to the "cooling options" of your slicer.

where did you buy the fan?

eBay auction. Some insolvency estate ...