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Prusa i3 MK3sExtruder Steppercooler

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updated 23. 6. 2019 | published 23. 6. 2019

PRUSAPRINTERS

Summary

Since the beginning of June I own my MK3s and have problems to processsome PLA. The support pointed me to the engine radiator from CG-Tech.Since this unfortunately only air downwards, I have designed a newversion of zero, which blows the air to the side. I have already successfullycompleted some ABS and PETG prints. Unfortunately, the cooling is stillnot enough to use some PLA (eg the blue of JANBEX). But for ABS andPETG it works so well. For the cables of the fan I have not added guidesand a latch to keep the fan in the correct place. Today I saw that CG-Techprovided a similar version. This would certainly collide with the fan of theMK3s. That's why I provide my version here. (this is a remix from scratchof this https://www.thingiverse.com/thing:2975582)

I tested extra with ABS because warping sets here rather and the highesttemperatures are used. I reach about 20 ° C reducing the enginetemperature.

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I hope to get the PLA problem under control sometime, but I'm afraid thatthis will only be possible with a different extruder design.

Note: The standard extruder fan of the MK3s not only blows through theheat sink but some of the air comes out again. This may be directed to theprint bed so that I have attached a piece of plastic (blue) to redirect thisair. This improves the printing result with ABS!

3D Printers > 3D Printers - Upgrades

cooler mk3s fan extruder

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License

This work is licensed under a Creative Commons (4.0 International License)

v3_securing_bolt.stl

prusa_i3_mk3s_extruder_stepper_cooler_v3.stl

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