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Extruder Stepper MOD

Posted: Thu Feb 12, 2015 7:26 am
by koreandi
Hi there,

I want to share my Hardware Mod for my UP! Mini I´ve realized so far. My intention was to be able to print PLA with the UP! Mini.
To be able to print PLA I had to reduce the temperature on the stepper, caused by the extruder nozzle. I reversed the original Fan to suck air from the Heat sink. Further I designed and printed a kind of ramp the remove the heat from the stepper.
IMG_5043.JPG (125.74 KiB) Viewed 7735 times
I used a 40mm Fan with 12V and grabbed the 12V directly from the board on the print head.
IMG_5046.JPG (161.2 KiB) Viewed 7735 times
The ramp can be “clicked” on the extruder head. The ramp leads the heat from the stepper out of the cabin. I also added some aluminums heat sinks on the stepper. I release the upper cabin door when printing PLA. When printing ABS I just unplug the additional fan.
IMG_5045.JPG (148.33 KiB) Viewed 7735 times

Best greetings

Re: Extruder Stepper MOD

Posted: Sun Feb 15, 2015 2:07 am
by stormychel

totally with you on reversing the air flow from the original fan :)

I did something similar, but different. Printed a clip that fits the extruder head and has mounts for 2 fans :

This also enabled PLA printing :) (ok the stock PP3DP PLA just works but... 3 colors??? really???)

Re: Extruder Stepper MOD

Posted: Mon Jan 18, 2016 4:25 am
by mrgibbon
Hi koreandi, have you put your mod up on Thingiverse?
If you have, I would love a link!
Many Thanks

Re: Extruder Stepper MOD

Posted: Sat Jan 23, 2016 2:33 pm
by 3DWP
Maybe type in koreandi at and find it :D

Re: Extruder Stepper MOD

Posted: Mon Jan 25, 2016 12:08 pm
by mrgibbon
lol, winner!