Extruder fan (50mm) for Printrbot Simple Metal
thingiverse
This is a no-frills mount for a low-profile 50mm fan for the Printrbot Simple Metal 2014, to keep the extruder motor cool. Holes are sized for countersunk self-tapping screws (the standard type that comes with PC fans. There's no fan guard. A 50mm fan fits perfectly here. A cheap source of 50mm fans are 3.5" hard drive coolers, which feature two of these fans, and costs the same or lower than trying to buy a standalone 50mm fan. I found that I had to rotate my bed sensor to accommodate the fan, but you could also flip the plate around and install the fan on the outside. I've also included the Sketchup file for ease resizing of screw-holes, etc.
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