MakerGear X-carriage 40mm Fan Mount

by tbkdan, published

MakerGear X-carriage 40mm Fan Mount by tbkdan Jul 12, 2011
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Simple clip-on mounts for the MakerGear x-carriage to allow a 40mm fan to blow directly on the hot-end (recommended by Rick) and the part.


Print it out, zip tie/screw the fan to the clips, and then clip 'em on! I used a Radio Shack 40mm fan because I was impatient. I'd recommend printing either two at a time, printing with a fan on the part, or printing very slow because the tall part of the clip is small and has a hole so it tends to get gooey/smooshed if you try to print without it cooling down enough.

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This is pretty cool and simple, but how does a fan help exactly? I've been trying to find info on the advantages on having a fan, but not sure if it's hooked up to the RAMPs board or what... Anyone have any guidance on this?

I was told there were two reasons to have a fan mounted there: 1) To keep the extruder insulation cool (don't want it to get too hot) and 2) to cool down the plastic immediately after it has been extruded (especially useful on small prints that would normally require slowing down or else get mushy).