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People Using Starter Motors
QUESTION:I trialed some Delcos from Transit vans last year - using skid steer the one running "Backwards" was *always* slower, resulting in an arc instead of a
straight line. Add to this, they barely had enough power to skid steer tracks so I went up to coach wiper motors before settling on wheelchair units
(which weren't much better!)
From my experience, if you're building a heavyweight wheelchair motors are at the limit of acceptable - wiper motors are not up to it.
ANSWER: I don't think that the size of vehicle is proportional to the wiper motor
size.. coaches will often use two car motors (one for each blade) and because
they hang down, they don't need as much power.
If you were looking in a vehicle made less than 20 years ago, chances are you
have a small motor. I think that manufacturers decided they could get away
with less power after then. Delco has made many sizes of wiper motor over the
years.
perhaps getting a matching pair isn't such a good idea if you don't know how
to match up the motor speeds... you don't need to drive the wheels directly.
As for tracks, I wouldn't bother using wiper motors... if you can afford the
tracks, you can afford decent motors.
I was just thinking... Could you charge a capacitor to turn your starter
motor if you were using it to, say, activate a pickaxe style weapon?
I'd say that you'd need a bank of capacitors, and I don't know how you
would deal with the non linear nature of capacitor output.
I'll get out my university electronics books....
You could always "accidentally" cause your capacitors to explode at a
critical moment.
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