Gallery, Projects and General > How do I??
Need Help Re: 12 Volt Motor Speed Controller
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kwackers:
Andy, both yours and snubs reversing switches are correct.

If you look you'll see the difference is that you've taken the motor feed off the middle and he's taken it off the 'outside'. Either method will work fine.
andyf:

--- Quote from: kwackers on June 23, 2010, 04:14:04 PM ---Andy, both yours and snubs reversing switches are correct.

If you look you'll see the difference is that you've taken the motor feed off the middle and he's taken it off the 'outside'. Either method will work fine.

--- End quote ---

You're right, Kwackers. Sorry for doubting your pic, Snub

Andy
websterz:
Don't waste your time/money on the 15 amp unit. I did it and the thing lasted less than a month. Go for the 30 amp and use a DPDT switch between the controller and motor for reversing. Mine is over a year old and going strong.
snub:
Thanks to all for your info and input. I ordered up a couple of the 30 amp controllers ( I'm sure I will have a use for the second one someday).
Sorekiwi:
Sorry to chime in on this thread so late.

I am using the Bi-directional speed controller you show first in your post to control a right angle gear motor (a power window motor) as a power feed on my mini-mill.  Its powered by a modified computer power supply.

It works great, and has been trouble free for 4 years now.  I dont use the power feed for the big hogging cuts, but I do use it a lot for finishing cuts and almost always for flycutting.

Assembly was straight forward (even for an electronics novice like me), and I'm happy with the whole setup.
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