Case for MFA speed regulator

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I manually control the speed of my extruder's fan using a speed regulator (MFA, Part No 919D2P, which can be found at Maplin's). To achieve better cooling in specific prints, this is exactly what I do. The simple case I designed for that speed regulator measures 72mm x 52mm x 25mm. Its box features a 20mm x 6mm window for cables. Version 2 also includes 2mm wide slits for ventilation. This design fits boards up to 63mm x 43mm perfectly. The top lid just snaps into place for most PLA materials I've tried, but if not, a slight rescale should do the trick.