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11-25-2014, 08:00 PM #11
RAMPS STEPPER MOTOR DRIVER COOLING FAN
I had printed a pair of these RAMPS 40mm fan brackets a while ago, and finally got around to installing the fan. There are various similar brackets on thingiverse, but I liked how the thinner legs on this one had less of a chance at interfering with something on the RAMPS board.
I hadn't noticed any issue with the stepper motor drivers running hot, so this is just a preventive measure. The fan I used is a Silenx 40mm fan I had from experimenting with various print cooling schemes. At 14 dBa for 5 CFM airflow, it is extremely quiet. The fan was installed so that the airflow direction is down onto the board. A fan guard was installed simply because I had one available.
Since I have a heat bed relay, there isn't much heat being dissipated in the MOSFET for the RAMPS D8 output. So, I positioned the fan assembly above the center of the four stepper driver boards.
Last edited by printbus; 09-23-2016 at 11:00 PM. Reason: deleted old broken thumbnail link
Printer will print perfect...
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