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Knob for Mechanical Hard Wired Electrical Timer — image 1
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Knob for Mechanical Hard Wired Electrical Timer

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A replacement knob for a hardwired mechanical timer often used for bathroom exhaust fans.

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Model information

Category
Bathroom
License
Creative Commons — Attribution — Share Alike

I have a few Woods Hard Wired Mechanical Timers in my home and one of the plastic knobs broke so I took it as a chance to model it and make a replacement.

I think the model I have is often sold at Menards (Midwest Home Improvement Stores): https://www.menards.com/main/electrical/light-switches-dimmers-outlets/outlet-timers/woods-reg-20-amp-direct-wire-white-light-almond-mechanical-timer/59723wd/p-1513154672770-c-6471.htm?exp=false

I printed my final models with 0.12 layer height using a 0.4 nozzle.  Material used was White PLA on an Ender 3 Pro printer.  I used a Brim to ensure adhesion throughout the print as the inner structure broke loose from the bed on an earlier print with only a skirt - maybe I need to check my Z-offset or temperatures.  Support shoud NOT be necessary.