Search results

Welcome! Yes you will definitely get the help you need here. Start by reading like crazy!

Update: sprockets and controller Hi guys, a video update on the progress :) https://youtu.be/a4mm_xyc9ao I tried to hook up the old chain that came with the kart but the roller width is a teensy bit too much. I've ordered some #41 chain (clearance from Princess Auto) which should do the...

Ok guys, just bought one of these: https://www.ebay.com/itm/121947043393 So the plan will be to bench test the motor and get a feel for whether it actually 100A+ as my voltage divider measurement says. Stay tuned!

lol!

My bad, I didn't realize a 350w controller wouldn't work at all. I missed that somehow! I'm not gonna do anything wacky like 48v :) So that makes more sense to me now. The appliance controller is purely a bench test, if it blows we know I need the Kelly, if it doesn't blow... wait, what if it...

Aww c'mon Sid, it ain't like that, I just said I was a "little" less interested in testing, and that's exactly what I meant :) My thinking was this: why test using an appliance controller that as you say can NOT never ever be used for a cart? When I could try a controller that actually COULD...

TBH I'm a little less interested in testing and a little more interested in karting. I think i'll go with the cheapo EV controller, and if it blows I'll get the Kelly.

What kind of brake do you use in an electric kart? I haven't planned that part out yet :) Just doing some reading and another difference would be the throttle. The appliance controller uses a potentiometer, but your typical foot-pedal electric go-kart throttle uses Hall effect sensors.

So the idea is, get a cheap (lower rated) controller and see if it blows. Is there any difference between these appliance controllers and the EV ones, besides all the bells and whistles like brake light, power locks, etc? When you said "that thing should blow" is there some reason why it would...

FA, love that idea. Thanks!

The bore on my motor is dual-d, 11.85mm x 13mm.

Holy crap! Boy I'm glad I casually mentioned that I would be doing that LOL! So I'm stuck... I have a handful of these great 3000W motors for essentially free, but I can't for the life of me find a sprocket that is an exact fit to the shaft. Suggestions??

Hey all, back after a brief hiatus necessitate by real life stuff. I got the 2 9-tooth sprockets, neither of them fit very well, there's a machinist who says he'll just weld it on to the motor shaft for me. I also got a 36-tooth sprocket for the rear axle, my plan is to fix it to the existing...

To be honest I don't know if what is on the pedal car is legit 410 chain. All I know is it's 1/2" pitch, and 1/8" internal roller width. But for sprocket sizing I don't think I need to know much more than that - do I? Sprocket A says #410, 1/2"x1/8". This one is totally the wrong bore for my...

Update this week: I've found a couple of possible leads on sprockets. I'm thinking I want as small as possible i.e. as few teeth as possible. Smallest seems to be 9 teeth. I need to stick to the existing chain size or at least something that will be compatible with the existing sprocket on the...

Little update on where I'm at. I've made a little motor mount out of plywood and used strapping to fasten it to the pedal car frame. Definitely not a lot of real estate to play with on these cars! But the motor in on there good and tight now. Next step is to get a sprocket. The lawn mower...

I could just fuse it with the max rating of the switch. Also the pedal car I'm converting has a little lever which disengages the axle from the sprocket, so the car can coast without turning the pedals. That's a pretty good safety in case the motor gets fused on at full speed! Now, how on...

Guys, for now can I just hook it up without any controller, just the on/off switch that came with the mower? Any concerns aside for the whiplash i'm going to get? If I did this, would I need to hook up that voltage regulator / power indicator it came with?

Wise words 'sid. Isn't there some sort of power measurement device I could use to get a reading? Can't a multimeter be used for that purpose?!?

I thought I couldn't use a cheapy controller from eBay because the motor was too powerful? That controller is rated for 1000W max, the motor is 3000W max. It would fry the controller, no? Haven't done any physical/fabrication work on the kart yet! That's next, maybe while I'm waiting for...