Fan Speed Controller Box

thingiverse

This enclosure accommodates a pre-purchased 12V-40V-10A-400W motor speed controller board, available at http://www.amazon.com/gp/product/B007TH4EN6. To reduce noise, I utilize it to regulate the ABS fume filter fan's speed. For printing, I recommend a 100.5% scale for thermal shrink with ABS, comprising 30% linear infill and two shells. Fastening requires minor screws for the circuit board and lid. Be cautious while handling at 2 shells as they may strip easily. Electrical notice: this PWM board features a +12V heat sink; avoid touching it with the grounded heat sink next to it.