Undecided (but definitely 4wd šŸ˜…), untitled, unhinged

How do you envision doing the swap?

The swap will only ever be necessary if the battery in the board shits itself.

The second battery will live in the trailer and i’ll have the connections arranged so that i can run

  1. Just board battery
  2. board battery and trailer battery in parallel
  3. just trailer battery

This will offer me the most redundancy and flexibility.

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Would you physically move the battery from the trailer? Or run an extension?

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Nah just run power leads from trailer to board. Would keep the battery tucked away nice and safe in bottom of trailer

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I used a dpdt switch on my first scooter build that would let me jump between 2 different 24v packs or combine them for a 48v ā€œturbo modeā€. I reckon you could do the same with parallel instead of series if the switch you find can handle the current. Of course this is just a fancy way of unplugging and plugging different xt cables but I know how boujee you are :nail_polish:

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Haha that sounds like a sweet idea but a switch that could handle that kinda current would be huuuuuge!

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Middle do the middle

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Oooh that’s pretty slick!!

Not gonna play real nice with f5x bindings tho :sweat_smile:

I wanna keep escs in the middle because i think it will look better, but if it’s gonna be more practical i’ll put them at each end.

I wanna use the f5x bindings that I already own, but i’m concerned that they might not be a great option for multiple reasons.. this could be another!

I assume the smaller traces are for sensor wires but what are the 4 small lines at each end of those?

What’s the plan here? Are you gonna make these available for purchase?

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They’re gonna go in a vantablack revamp. Once I know they work I could sell them

Big traces are phases small ones are sensors,added extra holes for redundancy.

ignore the autogenerated silk screen

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Why do you want bindings?

What purpose will they serve here?

Gonna hit some sick jumps on your way?

Bindings have saved me from SO many potentially devastating stacks, usually high speed, high stakes situations where I could have been tossed, lost balance or even just chickened out and bailed.

Security, extra confidence, extra control… riding with bindings really is something else once you get comfortable with them.

I won’t be able to help myself to not go fast on this board, gotta try and make it as safe as i can :sweat_smile:

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I remember trampa used to make little ones of these for sensor wires… was a long time ago, dunno if they still make them but i remember having trouble with them and ditching them

You kids go so fast!!!

I barely go fast these days! Mostly because i really only ride bike paths so i keep it pretty cruisy. But i can’t help myself when i’m on the road.. i wanna race everything else with wheels when i’m on the road :sweat_smile:

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I could make the same comment but in the opposite direction explaining all the times that being able to hop off of my board quickly has saved me.

I think it really matters where you ride. I would not use bindings in traffic

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Totally, i feel that. But i feel exponentially safer with them than without.

In my experience, losing a belt causes that one motor to freespin. And because vesc is dumb, none of the other motors get any power unless/until you shut that freespinning motor off.

So if you’re worried about what is going to happen in the few moments between a belt breaking and when you can pull over to change the belt, having one remaining motor or three remaining motors isn’t going to matter. None of them are going to get any power while that motor is freespinning. You’ll be just as fucked either way.

Unless you’re planning to do split PPM to 4 separate controllers that don’t communicate?

Or open the vesc app and disable the dead drives

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Still undecided on escs but very much want to avoid using vesc. Like at pretty much any cost.

Anecdotally i haven’t ever experienced what you’re talking about and i’ve ridden with free spinning motors before (not for long distances) and the other motors have still worked… but it would be nice to know if the esc I end up choosing suffers any similar issues, i appreciate that insight

Yeah, but he has stated that his intention is to replace his belt as soon as possible, and not ā€œride on a busted board.ā€ So that leads me to believe that he’s worried very specifically about the time between a belt breaking and when he can safely pull over to change it. That’s like a few seconds to maybe a minute or two, tops.

So if he’s worried about how his board will behave in the failure state of ā€œone broken beltā€ while riding in traffic or some other case where he can’t immediately pull over, then ā€œtake out your phone and reprogram your vescā€ isn’t really a viable solution. That’s basically the same as saying ā€œreplace the broken belt.ā€ Like, yeah, that’s the goal. He’s worried about the time it takes him to get there.

Fair enough. I don’t know how other escs handle that failure mode.

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