hi

this is for the electricity specialists...

I want to reduce a Sierra wiper motor speed to apply in a kind of giant toy with rotating parts. better explained: I want it to move very slowly.

how to make it without spend much money? and is it possible aplly the transformation in the lower speed and also in the intermitent speed?

thanks in advance.
Amadeu

[Edited on 11/4/13 by xico_ze54]

quote:

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Originally posted by xico_ze54
hi

this is for the electricity specialists...

I want to reduce a Sierra wiper motor speed to apply in a kind of giant toy with rotating parts. better explained: I want it to move very slowly.

how to make it without spend much money? and is it possible aplly the transformation in the lower speed and also in the intermitent speed?

thanks in advance.
Amadeu

[Edited on 11/4/13 by xico_ze54]

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quote:

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Originally posted by Bluemoon

quote:

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Originally posted by xico_ze54
hi

this is for the electricity specialists...

I want to reduce a Sierra wiper motor speed to apply in a kind of giant toy with rotating parts. better explained: I want it to move very slowly.

how to make it without spend much money? and is it possible aplly the transformation in the lower speed and also in the intermitent speed?

thanks in advance.
Amadeu

[Edited on 11/4/13 by xico_ze54]

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You could try a PWM motor controller.

somthing like this

6V-90V 15A 0% -100% Pulse Width Modulation PWM DC Motor Speed Controller Switch | eBay

You will find a limit to how slow the motor will run before stalling.

Also the wiper motor takes quite a lot of current (no idea how much but it will probably be >8A, you should check this with a DVM) this make sure the PWM controller has sufficient current rating.

[Edited on 11/4/13 by Bluemoon]

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Not sure depends how it works... I think there is a a special relay on the sierra loom you would need to feed the motor controller from this I guess; not sure..

there is a timer in the relay for intermitant and 2 sets of brushes in the motor for speed,you would be better off using one from a fiat with single wiper arm or an old lucas/mini cable type