Golf Skate Caddy

You could also go sensorless first and try that out

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Ok guys, it’s been a while… But, lots of progress to report.

  1. I have a brand new, purpose-built 10s6p battery from @SBS! Super high quality, and was a massive help in digging through all the requirements with me, btw!

  2. I have the DV4s hooked up, the hoyt Puck synced up, and a green light on the switch with no issues.

  3. Note that I do NOT yet have the sensor wires hooked up as I am still waiting for a new cable extension for the male end that was damaged.

  4. The entire “guts” of the prior boards system have been removed. Receiver, dual esc’s, and all the old cabling removed, and replaced w new 3/12 motor wires, etc.

Alas, nothing happens when I text the hoyt Puck, which I am guessing means I need to setup the DV4s on the pc?

I’m struggling to find a sort of definitive “manual” on how to do so? Also, can I do it before I install the sensor wires? Or is that why it’s not working yet? What other settings should I be paying attention to… What other tips? Last thing I would obviously want to do is fry any of this stuff. :smirk:

Thanks all!

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Meant to attach picture above.

You don’t need to attach sensors you can run it sensorless and with sHFI it honestly will run mostly fine.

There’s the motor FOC wizard in the VESC app and then after that you’ll need to run the input wizard. Those are the two most basic things you need to do to minimally get going.

Some extras you’ll have to setup battery current after the wizard. And you’ll need to setup absolute max current on each side.

Yeah not sure if there’s a tutorial somewhere maybeeeeee @b264 has one of those links handy.

I know nothing about the motors. How do I know if i have an “inrunner” or an “outrunner” and what “g” they are???

Well, the good news:

Did some testing today, and got it running!

The bad news:

The belts slip a LOT and it feels pretty sketchy sometimes.

Any ideas on how I could convert it to hub motors? Needs some GIANT trucks and wheels since the battery hangs so low under the board.

I guess you already figured the motors out, I missed that message.

Is your belt properly tensioned? What width is it? Wider width helps I think.

It shouldn’t be too hard to convert to hub motors if you can find the size you want and whatnot.

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had to take them apart to figure them out. But yeah, seem to have figured it out. The problem i see with the hub motor idea so far is that the space between my wheels is almost 14 inches. Can’t find anything close to that in trucks that will hold hub motors. :frowning:

Any VESC experts that can help me? Everything is at least “working” now… But, i need help fine-tuning.

The problems:

  1. Seems to need help with low end torque (getting moving from still). If i am on any sort of incline, it struggles a LOT.

  2. The brakes don’t ever fully STOP the board. i.e. even if I come to a stop on an incline or decline. Holding FULL brake only slows it down, but doesn’t fully stop it from rolling.

  3. Related to above… but, can I set it up in such a way that “neutral” on the hoyt sets FULL brake? That way, it will hold on hills while i am taking a shot?

Thanks much for any help guys! Happy to have at least gotten this far. :slight_smile:
-M

Oh, and I should’ve mentioned… the top speed is WAYYYYYYY too fast for me. How can I cap that in VESC?

You should link this post to the beginner question thread. You’ll get ore eyes on it, especially since it’s general question regarding VESC. You can set the ERPM positive max to limit top end.

The braking one is tricky but might wanna do the full current with limited reverse ERPM that others have been trying.

Unfortunately, I am giving up on this project. Just cant get low enough torque to make this thing reliable enough. And I can’t keep throwing more and more money at something that I’m not sure will work.

I’ll be selling the brand new 10S6P LG battery, makerX dv4s, and hoyt puck in a separate thread in the next day or two. :frowning: