Windscreen wiper motors

[rallikas]

Hi, im wondering if its possible to use windshield wiper motors, when you remove the worm gear sistem and put a chain sprocket on them -chain drive.

These motors should be quite slow, but i dont know anything about the power.

Is it worth a try? I have lots of them and im on really low budget.

[rallikas]

Re: Windscreen wiper motors

By the way, i made one motor, it looks like a real thing !

Going to make some more and test them out.

[muchalucha]

Re: Windscreen wiper motors

you could but you would have to find a sprocket small enough , and you would almost certainly have to weld it.

[beast]

Re: Windscreen wiper motors

you say you r on a buget just use drill motors lighter and maybe cheaper all you have to do is put a wheel on them see other posts about that or email the coppers

[cliveb]

Re: Windscreen wiper motors

why e-mail the coppers?
why involve the police John?

[psycho_fling]

Re: Windscreen wiper motors

i have some used but perfectly fine 'blue' wheels which are made by robo challenge they just screw right onto the drill

interested????

(btw drill motors much easier )

[beast]

Re: Windscreen wiper motors

clive hmm jsut a typo i tink

[anukhet]

Re: Windscreen wiper motors

Freudian slip more like :wink:

[muchalucha]

Re: Windscreen wiper motors

jsut a typo

[john_frizell]

Re: Windscreen wiper motors

Mart, if the windscreen motors have gearboxes on them you could try attaching a wheel directly to the shaft. You would get a very slow robot with the sort of windscreen motor/gearbox combos I am used to but you could speed it up a bit with bigger wheels and by overvolting the motor. It's not ideal but it might be the way to go if you have severe budget constraints.

[rallikas]

Re: Windscreen wiper motors

Ive tried attaching them directly to the wheel, but it was too slow for me.
Motors w.o. the worm gear stuff would be a completely bad idea?

[john_frizell]

Re: Windscreen wiper motors

If you just attach a wheel directly to the motor it will spin very fast but won't have much torque and so will stall when you put a load on it [like trying to drive a robot]. If you double the voltage to your windscreen motors they will run twice as fast and develop 4 times as much power. That will heat them up but they should last for the five minutes of a robot fight and give you a slow machine but one with lots of pushing power. Another approach is to make a gear or gear/chain reduction for your motors so that they can run at full speed but the output from your reduction unit is much lower speed and has much more torque. That might be harder though. As others have said, drill motors solve these problems because they have gear reduction units built in.
Do you have anyone else to fight in your part of the world?

[muchalucha]

Re: Windscreen wiper motors

if your using windscreen wiper motors , rexes robot guide is a great starting point ,

heres the link http://rrc.dannysrobots.co.uk/

[rallikas]

Re: Windscreen wiper motors

Oh, ofcourse i would make reduction if i would use motors without worm gears! I just want to know if anyone had done same thing. I dont know if these motors are efficent for their size and weight. But i dont know how big? reduction i should make.

Somewhy the drill motors seem weak and small for me, for a fw (2 motors).

Another chance is to gear up the original worm geared motors, maybe 4:1 would be fast enough for a 100mm wheel?

I know all about the rex´s competition!

There are some events held in Finland.

[muchalucha]

Re: Windscreen wiper motors

oh sorry