Gallery, Projects and General > The Design Shop
Electric or Petrol Locomotive
bogstandard:
That is even better Stew.
I can make him up a bit of a goody bag to play around with.
John
NickG:
Bogs,
Thanks for taking the time to do that, I really appreciate it. It's a big box of goddies you have there!
Just from looking at the motors, the smallest one definitely looks too small, but the medium sized one might be just about big enough if I can find another 1.
The only reason I was talking of gearing up was because the 160 rpm output speed would be too slow. I think this sort of motor normally runs at 3000 rpm so the gearbox must give something like a 20:1 ratio. If I used the gears I got at Harrogate (1:2) to gear it back up a bit it would still have an overall ratio of 10:1, do you think they would still have sufficient torque at that ratio. It would limit my speed to a pretty slow 4mph with 4" wheels though. Does the 550 have a speed or power rating written on the motor anywhere?
Stew, good idea, thanks.
Nick
NickG:
I've just been doing a quick scour of ebay and found these: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=360151297838
What do you guys think? I think they may be more suited to my application. If I used my gears with a small wheel diameter of 2" that would give 8mph top speed. I suppose a larger wheel diameter spinning more slowly would be less likely to slip though? :scratch: I'm just trying to utilise the bits and materials I already have but without making too much of a compromise, otherwise the work will be wasted and I don't get much time to repeat things! :doh:
Here is another type: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MEWAX:IT&item=120414973185
More powerful still, but looks a larger diameter and not sure if the output shaft is long enough.
bogstandard:
Nick,
Wait until you get a couple of these ones from me, and stick one across a battery. Then count the revs, I might have got it slightly wrong.
I would ask what size those motors are, if I recollect, they are both fairly large physically.
Bogs
Bernd:
Nick,
Here's a site that sells scooter motors. They have dimensions on them and may help in your search for the proper motor. Unfortunatley it's a US based seller. But it may help.
http://www.scootersupport.com/motors.htm
Bernd
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version