PowerSpec Pro Part Cooling Fan

thingiverse

Part Cooling fan for the PowerSpec Pro and similar (flashfor, ctc, makerbot) printers. both halves clip onto the front/back on the carriage and bolt together. The smaller fans go in the rear and just clip the Z-axis rods, but they easily flex out of the way, so not a big deal. Also, I just used zipties to attach the fans, but you could easily use other hardware to secure the fans. **They should be aligned in the correct orientation for printing when imported** No supports are needed BOM: 2x 4020 blower fans 2x 4010 blower fans 2x 50mm m3 socket head screws 2x M3 nuts 2x Zipties Build Instructions: Fairly self explanatory. Slide the 2 M3 nuts into the slots on the "larger fan" front mount. Slide the 2 fan shrouds onto the X carriage frame making sure it is centered. Slide the 2 M3 screws in from the back and tighten them down until snug (no need to crank down on them, they're holding fans on, not holding the printer together. Too much tightening will cause the entire assembly to bow. Slide fans into place and attach with zipties (1 per fan should will do the trick, or you could use screw/nut hardware). Wire accordingly. **IMPORTANT** You will probably need to add some sort of heat shielding to the hotend, as the blowers, while not pointing at the heater block, do cause airflow to happen around the hotend which will cause the temperature to drop and can lead to temperature errors. I suggest using a silicone hotend sock or similar type wraps w/ Kapton tape. Also, printing in a material such as PETG or ABS will probably help to prevent any warping due to being close to the hotend, but mine has been fine being printed in PLA so far, though I've also only printed PLA with it.