This is going to be a long one but I could really use your help. Alright, so my makerbot replicator 2’s extruder fan stopped spinning about 6 months ago. I was trying to load wood filament when I noticed smoke starting to come out of the extruder. I immediately turned off the printer and pulled out the filament. I took apart the extruder assembly to see if anything was broken but I didn’t find anything wrong. The next time I turned it on the extruder fan wouldn’t start spinning. I bought multiple different 12v fans to try (Some of which being the expensive ones makerbot sells themselves) but none of them have worked. I used a multimeter to see if any electricity was coming through the wires and it was. I was getting about 16-18 volts which should be more than enough to spin up a 12v fan but I also tried 24v fans which also didn’t work. I ended up figured out that as soon as a fan was connected, the voltage dropped to 0 volts, almost as if the fan was trying to draw so much current that the printer cut the power to it. I have no idea what else it could be other than something in the circuit board but replacements cost over $100 and i’d like to know if any of you have a solution. Thanks!
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Jan '18last reply
Feb '19- 3
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