How to convert an XR to a VESC with Ubox 80V
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- čas přidán 27. 07. 2024
- Timestamps:
0:00 Intro
1:36 Why Ubox?
3:30 Modifying stock XR controller box
4:03 Molex and Switchcraft connectors
5:59 Fuse
6:38 Mounting the Ubox with studs
7:47 LED module
8:48 Power button
10:26 Recap and wiring diagram
Turns out youtube doesn't allow me to put links in description, so they will be in a pinned comment down below ;)
Oh man this video took me a while, had some personal stuff going on so had to delay this vid
Links to parts (not affiliated):
--------- controller --------------
Ubox 80v now rated for 20s 100v 150a! (spintend up-ed the rating from 18s 80v 100a): spintend.com/products/single-ubox-aluminum-controller-80v-100a-based-on-vesc
Switchcraft (buy this exact one if you don't want your board to blow up): www.digikey.com/en/products/detail/switchcraft-inc/EN3P6MPX/1289639
16 pin molex female: www.digikey.com/en/products/detail/molex/0194180030/2421242
16 pin molex male: www.digikey.com/en/products/detail/molex/0194280016/3044517
molex socket: www.digikey.com/en/products/detail/molex/0194200002/2404783
6 pin molex male with bullet connector: www.makerspev.com/collections/accessories/products/6-pin-molex-to-3-phase-4mm-bullet-connecters
-------- controller addon -------------
flipsky vx4 vesc 6 remote (can use in conjunction with bluetooth module, connect to spare pins on comm/footpad port): flipsky.net/collections/remote/products/screen-remote-vx4-pro-for-electric-skateboard-ebike-eboat-compatible-with-vesc
19mm latching power button (waterproof, single color): flipsky.net/collections/remote/products/screen-remote-vx4-pro-for-electric-skateboard-ebike-eboat-compatible-with-vesc
front white LED light: www.amazon.com/gp/product/B09TKPB21C/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&th=1
--------- battery box -------------
badger torque box: thefloatlife.com/collections/shop-for-onewheel-xr/products/torque-box
wiring harness (you will probably need to modify this): www.makerspev.com/collections/accessories/products/16-pin-molex-battery-harness-for-flowglider
18s2p battery pack; theboardgarage.com/store/p/18s2p-50s-cells-custom-battery-for-vesc-onewheel-builds-conversions
zbms: zbattery.solutions/products/zbms
alternative to zbms: flipsky.net/collections/bms/products/flipsky-4s-24s-15a-bms-protection-board-hardware-ternary-polymer-lithium-battery-only-charge-bms-board
Great video! Been pondering a lot if I should go for Ubox 100 or LittleFOCer and never considered Ubox 80 since I did not saw anyone using it! Really love that I will be able to use the existing casing!
The molex sockets are for the 16 pin molex female connector right?
@@kallepetter spintend just recently updated the specs of the ubox 80 to 20s 100v 150a (it was so overengineered that they just updated the rating). so on paper this might be able to beat focers.
and yes the sockets are for the 16 pin. i bought the 6 pin from makers pev and it came pre assembled so didn't mess with it
Wow, this is great stuff!! Nice work you guys!
thanks! now this video is dado approved :)
Great job! Keep it up. I think the FPV diy drone build style video would be AMAZING. One that one can stop and follow along.
I know it’s a lot of work and editing. Good for you!
stay tuned in a couple of weeks that vid is dropping
Can you make it more difficult? That would be great...
-FM
That is one draw back of LF, no DC step down.
Can you add a buzzer to that thing? How's going so far?
Thanks for the video, I just pulled the trigger on the 85V 150A
BTW, you didn't address the XLR port in this video.
Thanks so much for making this to the point video! On speeds, what kinda speeds can you safely hit with a 75 volt pack and this setup?
i'm 200lbs, at 15psi at >30% battery i'm getting 22mph before 77% duty cycle pushback. my top speed is 29.4mph but i'm sure it can break 30.
Amazing video Leon! I just bought the Ubox 80V now and got 10% off with 10off code. I think the only link you are missing is for the power switch you used. The zbms is sold out. Any other recommendations for a good and cheap charge only BMS? I just picked up a cheap OW+ and going to use the stunt pack battery for this build to keep things torquey, light and cheap.
this is a great alternative, basically the exact same as zbms: flipsky.net/collections/bms/products/flipsky-4s-24s-15a-bms-protection-board-hardware-ternary-polymer-lithium-battery-only-charge-bms-board
while you're at it, i also recommend getting the flipsky vx4 remote (vesc 6). you can use it in conjunction with the bluetooth module, just connect it to the spare pins on the footpad comm port: flipsky.net/collections/remote/products/screen-remote-vx4-pro-for-electric-skateboard-ebike-eboat-compatible-with-vesc
link to power button: www.amazon.com/dp/B08LV6P6VR?psc=1&ref=ppx_yo2ov_dt_b_product_details
hope that helps :)
Thanks!@@leonchang7596
Great video. What version of VESC firmware are you using, 6.0 or 6.02?
Thanks! On 6.02
Great Video! Can you provide a link to the LED Lights you are using. Would be awesome. Thank you
any led that takes 12v, is around 8mm wide, and has segments that can piece together to exactly 15cm is good. i've switched away from the one shown in the video to this one: www.amazon.com/gp/product/B09TKPB21C/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&th=1
Why did I not know this before, so one can use the UBOX 80V100A controller with an 18s2p and a charge only BMS in the rear safely with no concerns? And thanks much for the video
Yep! That’s what I’ve been doing.
thats how vesc users do. bypass bms discharge.
Whats the difference between the focer and the ubox? If money was no object which one is better, as i feel like safety first over money too
By no means an I an expert builder, but in my opinion, unless you have a floatboxx or elm box, where it’s super rigid and have plenty of room to house things, focers break more than anything. I have broken 3 focers in the past 6 months by running it inside of a printed box, and have seen too many focers blow up on forums. Focers also doesn’t come with a contained metal housing, Bluetooth module, fuse, power button, or any wires that connects it to the switchcrafts. Although ubox 80v only supports up to 18s and 100A (vs 120A focer), it’s still super high performing comparing to a FM controller, and it’s built with a ton of margin so some people overclock it to 150A without issues
Whys the 80v 100a one cheaper than the 75v 100a version on their website lol, is there smth im missing that's better on the 75v 100a version? If not why is the theoretically lower spec vesc more expensive? Thanks
That’s an interesting question, I… don’t know. I’ve only used 80V100A
Leon, any chance you can explain either in a video or this comment regarding differences with 84v (20s2p) vs 75v (18s2p) batteries (is it really range vs top speed). Also why were your lit focers unreliable compared to the ubox? thank you for sharing your build it's super helpful for the diy community!
Hi! Glad you find it helpful!
essentially watt hours = range, and higher voltage = higher top speed. The reason 18s2p has higher range than 20s2p is that it is possible to pack in 21700 cells for 18s pack inside the torque box, but if you go with 20s2p then unless you do split battery pack, it is only possible to fit in 18650 cells in the rear box. Even though 20s2p has 4 more cells, each cell is smaller, therefore less capacity/Wh, therefore less range. If you build a 20s2p 21700 (many experienced vesc guys do this with split packs, and floatwheel), it will have more range than 18s.
I believe my focers are unreliable because i was running them in 3d printed box. I think focers are really sweet if you have a beefy metal enclosure, 3d printed covers, and have everything bolted down. Since it’s basically a naked pcb vs ubox with a metal enclosure, it’s way easier to break, therefore it requires better craftsmanship to work with it.
Leon, Thank you so much for the reply! Do you have a torque box for your 18s or does it fit in a stock box?
@@hungwensun most 18s only fit in the torque box, so is mine :)
Did you reuse the stock xr wiring harness or did you have to make your own?
I made my own harness. I think it’s easier to make a new one with 4 neat cables instead of trying to rewire the FM mess with merging data cables as charge route. You can follow Mario’s guide on pev.dev to make a new one, pretty straight forward
@@leonchang7596 i saw somewhere that if i get a 16 pin molex connector from makers pev i can reuse the stock harness and then if i just install an owie chip i can also reuse the stock fm bms for charge and discharge. Is this true?
You can reuse the stock BMS + owie chip if you bypass discharge, but the makerspev harness only has a discharge route. You’ll need to modify it by adding 2 more wires for charging
@@leonchang7596 I’m gonna just run a cable gland and ditch the 16 pin molex. I’m also just gonna use a 15s pickle bms. But thank you
@@1and289 cable gland is the easiest way and is better than molex actually, so good choice! you can print an adapter that lets you mount a m20 cable gland on the 16 pin molex hole if you want to cable gland the stock controller box.
I WOULD vesc my XR that I bought used here in Australia but to Vesc it with a controller and battery replacement/all the things you mentioned that need to be bought, it would cost me more than buying a GT brand new. ($3400AUD) So i will just stick with getting a Floatwheel adv that cost like $2400AUD. It's not only easier but cheaper bc of where I am.
only thing you need is the ubox which is $150. you can reuse your xr battery pack wire your FM bms to charge only. but yeah floatwheel is an amazing option too
What did you do for the footpad? correct me if im wrong but you need to solder in pulldown resistors to the stock xr footpad because the ubox doesnt have them internally.
never added any pull down resistors, actually i don't know why that's a thing...
ok thank you. i was worried because i have no clue how to solder in those resistors. Did you have to replace all your stock xr controller connectors or did you just order new ones.@@leonchang7596
You can desolder the ones on the controller and reuse them, but i ordered new ones just to keep it clean. Links to parts are in the pinned comment
@@leonchang7596Thank you. How hard would you say it is to desolder them?
@@1and289 not too hard, just gotta heat all 6 pins at the same time, so add enough solder to bridge all 6 pins so you can heat them all at once. but you need to do it really quickly otherwise you risk melting the plastic
Does vesec still have pushback and an app for your device?
there are multiple apps for vescs but vesc tool is the most comprehensive one. you can customize pushback however you'd like, or turn it off completely
Would these method using the ubox work with a pint ?
you can use a ubox 80v but requires a holder. gimme like 2 more days my GT conversion video is almost done and pint conversion is basically the same as a GT conversion
@leonchang7596 awesome! Thank you. I am looking forward to the video. I want to convert a pint and an older OW plus that I own. But I want to do the pint first.
@@MarcVelo85 new vid just dropped haha, finished it sooner than expected. pint and gt boxes are basically the same, pints are just smaller. avaspark sells pint controller holders, or find a controller holder model and print one yourself. for your OW plus you can just follow this video + do a BMS charge only bypass
Where's the VESC tool aspect?
mario made a pretty good vid: czcams.com/video/YeFLmPA049o/video.html
Can I use a stock xr bms and stock battery/cbxr?
Yep! Ubox supports up to 18s battery pack, and stock pack/CBXR are all 15s. You can run the stock BMS as charge/discharge but on a critical error the BMS will just cut power while you’re riding. Safer thing to do is to wire the stock BMS as charge only.
@@leonchang7596 Would you be able to use 19s2p Chi Torque pack? Thats right at 79.8V... or do you need more buffer for the 80V Ubox?
@@scottparker6552 spintend just recently updated the specs on the ubox (just a spec change, no hardware change) to support 20s 150a, so yes! 19s works
@@leonchang7596 Wow youre right! I found this on the product page: "Voltage: 22S hardware design, 85V is in warranty". Maybe I will do 20s then for a lighter cheaper option that fits in a stock XR box. I hope the form factor of the ubox didnt change though.
@@scottparker6552 someone on discord emailed spintend and they said it's just a spec update, no hardware change
To much I will just buy a float wheel lol
This is a how to video but not a how to video
😂 the 2 vids after this I filmed the whole build process if that’s what you wanna see
@@leonchang7596lol. I’m kidding. I watched them a few times. I want to vesc my xr but I’ve never solder before. But I like to tinker with things so if I have a full comprehensive guide, I can definitely follow it and do it myself.
im sure if you put your mind to it you’ll be able to do it! Soldering is just gluing but with molten metal 😂