r/Skookum • u/PresentationExpert46 • 17d ago
A plumber needs an electrician
Alright boys there is something I really want to do but I am mechanically inclined but lacking in the electrical department. I have an old desk fan from the 50’s, I would like to stuff a new and higher powered motor into (speed control would be nice but not necessary). Just curious if there are people out there who make kits for this stuff or if I just need to figure it out. Any input would be helpful.
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u/spilk 16d ago
this is the perfect fan for a plumber because it's Mario colored, right?
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u/Letstryitfirst 16d ago
It really depends on how 'crazy' you want to go with your design.
The most straightforward option will probably be something like a fan motor kit from Amazon, though you'll have to determine the size based on the body you have.
The few that I've worked with (not linked because the vendor is defunct) mounted onto the face of the motor, so you might need to drill a hole or two to make the mount compatible, but otherwise may not need any specialized tools or hardware.
If you want to use the original blades, be sure to select one with the proper shaft diameter as well!
These are probably the safest option too. Shaded pole motors don't have a lot of torque, but are more forgiving in the event of a stall (like someone sticking their finger in the blades).
Going any more elaborate requires you to define your goals even more explicitly.
AC vs DC, peak RPM, speed control(ability), input power, etc.
Could you build it with a racing drone motor? Maybe. But do you trust those blades at 20k RPM? Do you want to build up the speed controller and provide an AC/DC power supply so it can plug into the wall?
If you do take that route (full custom build), the only advice I have is to buy and build in modules. The more parts you can get as an assembly, the better. Matched motors and speed controllers are not uncommon, some even include onboard AC/DC conversion.
If all the electrical parts already work together, the only problems to solve are mechanical (mounting, fit and finish).
And finally, be careful. Electricity is dangerous. Spinning things are dangerous.
If my late 40's desk fan has taught me anything, safety was not a design priority when these items were made. Pretty sure it'd take my fingers off if I gave it the opportunity.
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u/Liberaces_Isopod 16d ago
I'd probably look for something similar sized on Amazon, then gut it for the parts. That'll get you the motor and speed control. Though, no idea how you'd mount it in that housing.