Re: (ET) 12V winch - PWM controller from scooter

[JBR <reinharj frontiernet net>]

If you can find a junked one of those kids scooters that runs on 36 volts, 
you 
might be able to pull the motor speed control module out of it, and use it 
to 
control the winch motor.  One I found with cracked frame had a good motor 
and 
controller in it.  Motor was only rated 400 watts, so controller is about 
same.

Related to that, you might check Ebay, or otherwise online for Scooter 
type 
motor speed control only - I think I saw them for $20 or $30 a month ago.

IF they are not rated for enough current, the circuit might be easy to 
modify, 
by adding FET's in parallel.

On Thursday 31 August 2006 4:42 pm, et jpjt net wrote:
> Hump, the problems I have with the winch (Superwinch 1500) are it is too
> strong and too fast. Running at 36V would make it faster (and stronger?)
> and that would be a bigger problem. Already I have to use some kind of
> disposable sacrificial link between the strap and the implement so as to
> avoid ripping the fixture right off the implement.  I use a 1.5" or 2"
> diameter split ring (keyring).  When the snowblower is all the way up
> against the stop and I haven't managed to get my finger off the up 
> switch,
> the split ring uncoils and stretches so that nothing breaks.  I've been
> trying to brainstorm some kind of fairlead mounted on a spring arm so I 
> can
> get a visual indication of imminent damage, but I haven't got anything 
> yet.
>
> The other possibility I've been considering is some way of implementing a
> limit switch, but that would need a different setup for each implement, 
> and
> has other electromechanical issues.
>
> Still thinking...
>
> Joel
>