Recent content by bdiermeier

Thanks! And I'm probably sticking to my 4 gauge. Every electrical engineer I've talked to has recommended 4 gauge, so I guess better safe than sorry. So far connectors are not horribly overpriced, and it's plenty workable for what I'm doing.

Just for more detail it is a solid axle cart powered by two 1000w 36v motors. I plan to use (3) 12v batteries to power it. The motors will be controlled with a Kelly controller, still looking for advice on which one. Use will be mainly in parking lots. I don't know what other info I can give...

It's my project, with some help from a friend. And what would you like a sketch of?

One more question- would one band brake on the axle be enough, or should I use two?

Hi guys! This project kinda stalled out for a while, but I'm finally getting back into it, and am about to order parts. I just have a couple questions before I order. 1. For the Kelly controller, can I get away with the small (50a?) size, or should I step up to the larger (100a?) size? It's a...

So the pre-charge resistor simply goes between the positive and negative of the battery disconnect? And just to clarify- the disconnect, like the one you linked, just goes in the positive lead between the battery and controller? Also, what resistance and rating resistor do you recommend? I...

Awesome, thanks! Do you mind elaborating what a contractor or pre charge resistor is? I just went over my budget, and only have $100 left for a controller :(

That kelly controller looks complicated... I don't even know what a contactor is. I could probably wire it up from the diagram, I'm just worried with all the extras it will add up fast. Any other recommendations?

Oh geez! I totally missed that! Thanks!

Could you share some more details on the sprocket for your motor? I am planning on using a very similar motor for my project, but can't find much for specs on the shaft size to know what will fit. A link to the exact one you have would be great :)

Thanks! I think I'll try it with a regular live axle first, I'm trying to keep it as lightweight as possible. I also posted another question that I don't think you saw. Should I connect both motors to one sprocket on the axle, or give them both their own sprocket?

Thanks! I'll check out that link when I'm on a real computer, not my phone. I think he meant one controller, but with two motors. That way the motors balance each other, which makes sense to me. Can you clarify Sid?

Thanks! I think I'll just go live axle then, with the motors in parallel, do to time/budget/lack of experience in writing code. I may still try writing it though, and try it and some small (RC?) motors just for fun. Would I want both motors powering the same sprocket, or two separate sprockets...

Thanks! I think I got most of that, I've only done very basic code before, but I'm excited to try it. With that set up could I get away with the current axle, or would I still need to switch to a live axle? It will probably be a couple weeks before I get to that point anyways, I still need to...

Thanks for the AWESOME reply! Do you have more info on what it would take to sync the motors/the code required? That may be the way to go, since as part of this project I am supposed to learn basic programming. I originally was hoping to go with one motor, which would be really nice. But I...