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Windscreep Wiper motor madmodding

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raynerd:
VSteam - thank you very much! Have you any approximate ideas as to what max current it would have been pulling during that test? I do have some ATX supplies but was hoping to use something smaller with a smaller current rating.

Another thanks for testing that out and posting your results for me  :beer:

Chris

NeoTech:
Those geared windscreen motors is really usefull to different things arent they..

why ebay them though.. just go the local car scrappy and pull one out of some old junker, would prob. cost you a fiverr at most.. =)

mattinker:
Chris, another useful motor are electric window motors, they are from, what I have seen, smaller and may be less power hungry. I ordered one of the speed controllers you found, I need this sort of thing from time to time for my work. Thanks for the heads up!

Regards, Matthew

vtsteam:
Chris, I can give you current draw later today, but for open running.

I'm not sure how to test it for the amount of torque you want to load it with and at what RPM you need.

I would suggest that once you know the baseline draw of most small motors, the addition of the power you need isn't going to vary that greatly between motors. Power needed is power. drawn I suppose efficiency does enter into it, but I bet it isn't a huge factor.

However baseline requirements are probably a pretty big chunk of the pie -- especially  the gearhead itself and the bearings and rotor and shaft sizes, etc.

So would unloaded baseline current be sufficient to give you an idea?

vtsteam:
One important thing about wiper motors Mattinker is that they are designed for continuous operation, and long term service.

I don't think a window closing motor has to do much more than run for 3 or 4 seconds. 


Unless of course you have a 7 year old on board, like I do.   :)

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