OW Pint VESC Repair
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@lia said in OW Pint VESC:
Thinking about it, if not for the software limits the Pint would in theory be so much more modable. It's much simpler with less clutter unlike the prior generations that had countless components.
Oooh i like that hint of optimism! i look forward to captain morganing my way past the sound barrier.
[cue b2tf instrumental]
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@lia Looks like a update on a OW BMS JW style chip.
https://github.com/lolwheel/Owie
Coincidently, JW just lowered their chip to $49 and free if you buy a battery. -
@lemur Oh sweet, looks really good and well documented.
I did see they dropped the price, apparently some speculate it's because this project was available now which makes sense. -
@lia It could be competition causing the price drop. Although it could also be that they are planning on releasing a new model, so they are selling off the existing stock. I don't know that they should be afraid of Owie just yet, we are still figuring out how to relay battery % (https://github.com/lolwheel/Owie/issues/1). Ah counting will be the way, but it isn't quite ready yet.
In the long term, I fully expect JW to copy Owie's code b/c they are hacks with no originality.
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@biell Could also be financial problems due to the lawsuit, trying to bring some money in with the free chip offer with the purchase of a battery. Can't make any money with chip sales alone.
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@lemur Excellent point, it could be.
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@lia Just uploaded on discord, a diy for the JW style chip.
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@lemur This is an exciting development.
The comment on the shipping for the previous JW chip had my jaw drop. $100 for international shipping??? -
@lia Yeah, shipping outside of the US is crazy. Haha, I just checked the JW site and the chip went back to $250, it was $49.69 yesterday, I bought one a couple of days ago at the discounted price.
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@Lemur said :
... and the chip went back to $250, it was $49.69 yesterday ...
FB was flooded with news on that price change. Some say it must have been mishap. Some say it was Valentine's extraspecial. - With all the hype around it, they won either ways.
@Lia said :
... $100 for international shipping???
That's fairly decent! (yea, the chip is tiny thing tho) =]
Imagine you end up reaching total cost ~2,1 times on smth that already has three-digit price tag for US local. Also not complicated by size and form. And not chemicals related.
8'/ -
@sirgu To put that in context, shipping within the US is $6.99.
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Took 2 months but those PintX bumpers finally came, fit them to the board to see how it looks. Not bad considering the battery housing still needs doing.
Interestingly the curved section differs between the models, see how they don't align.
Not a simple 14mm extension but won't be too hard to figure the curve out for this.
Edit 1
Gonna take a while to get this right but here's a start
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@lia Keep up the good work!
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@lemur Thanks :)
Hope to release both models when done, fingers crossed I can get it done soon. -
Printed off a slice of the new design, essentially the extended bit from my former housing to see if:
A. The extension actually fits in the housing (it did).
B. The guide rails that interface with the rear bumper fits (Too tight).
C. Is the support material for the guide rails easy to remove (OMG no!).
Spent some time fixing that and redoing the model a little while tidying up the inside of the housing and expanding the space as much as I safely could.
I feel FM did the PintX dirty, using 18650 cells in a housing like this leaves a lot of room. I bet with enough cell fiddling you could get 20700 or even 21700 cells in this with ease.
I know there needs to be some room for the protective wrapping and foam but there is enough space to put bigger cells in. Honestly wonder if you could get some killer packs in the PintX. Anyone know if Chi/JW are working on this?
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@lia Your work is way beyond my pay grade! That will be great as I just got 40- 20700 cells. Unfortunately, I just blew up a Raiden7 running 18s1p for the first time yesterday, but I do have another R7, maybe I won't go 18s.
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@lemur Thanks for all the support :)
Sucks that the R7 blew, looking it up it sounds like it's rated for 18s, what do you think did it in?.
Update 1
Modelled some 20700's and tried to fit them in, so far I've found 13s2p works fine, probably could squeeze 14s2p without too much trouble but 15s2p might require breaching the firewall and modifying the wire channel to allow the cells to sit comfortably.
Below is 20700 13s2p
On the flip side if you stick with 18650 then 17s2p fits super easy without the need to even diagonally stack cells.
Below is 18650 17s2p
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Update 2
It begins...
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@lia I'm not sure, I just made a 18s pack with each cell at 3.8v, the R7 tested fine with 68 v until I charged the pack to 75 v , pressed the power button and smoke from the vesc.
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@lemur :(((
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@lemur Fingers crossed it’s just a dead filter cap or something and easy to repair.
