Search found 116 matches

by trazor
Mar 08 2019 10:15pm
Forum: E-Bike Build Threads / Photos & Video
Topic: WORLDS BEST DIY E-MINI MOTO DIRT BIKE!!!
Replies: 2
Views: 269

Re: WORLDS BEST DIY E-MINI MOTO DIRT BIKE!!!

:lol: :lol: :lol: :lol: The title says it all.
Indeed it looks silly, but it probably give you lot of fun building and riding it.
Those footpegs from electric unicycle are so out of place :lol:
Nice build taking into acount the sourced parts. :bigthumb:
by trazor
Mar 03 2019 1:39am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

Qgx0rt-1LCw i should not have procrastinated w/ the sensor install. i would've seen that the yellow phase wire was rubbing against the rotor. eventually the insulation and copper wire wore off and started acting like brushes, hence the scorch marks quality on this BHT motor is really crap :lol: Bum...
by trazor
Feb 25 2019 1:49am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

https://i.imgur.com/8uJow6E.jpg https://i.imgur.com/5oL4JRm.jpg will do the shunt mod ASAP and also the temp probe on the windings. if power is still inadequate and there's still some thermal headroom i'll probably get the kelly controller speaking of thermal headroom. what's the safe max temp of t...
by trazor
Feb 24 2019 12:21am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

Are you monitoring temps inside the motor? By the time the heat soaks through to the case it could be way too late for the windings. Great job on the bike build by the way! I agree with that. I've fixed the temperature sensor (the same as the picture, with the remote display) inside the motor, on t...
by trazor
Feb 22 2019 12:58am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

https://i.imgur.com/vyME3vg.jpg haha i was looking at the same thing! but blue https://i.imgur.com/O6fWxf6.jpg i actually don't mind bending those cheapo pedals. but they might deform the frame during a crash. so yes i'll be switching to pegs soon. will add a bolt-on mounting plate here also the 17...
by trazor
Feb 21 2019 6:32pm
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

Congatulations! after all those years, finally, a complete LEV! :thumb: Keep practicing and post a video! haha thanks! this project took way too long :lol: might take another year to get it painted :lol: sgkiock4p9M Looks good!. The only thing I don't like are the footrests that are common bike ped...
by trazor
Feb 20 2019 9:09am
Forum: Stand-up E-scooters and E-skateboards
Topic: 10kW stand-up scooter with air suspension
Replies: 110
Views: 6450

Re: 5200W stand-up scooter with air suspension

alex_2d wrote:
Feb 20 2019 8:10am
A little bit to revive the topic :)
The batteries are here!
Li-Ion, 22s, 92.4v, 40000MaH, 4C discharge
LdWK8D7gBfI.jpg
Where did you source those pouch batteries? I'm looking for a good deal and always end with hobbyking preassembled packs :roll:
by trazor
Feb 19 2019 2:16am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

Overclocker wrote:
Feb 18 2019 10:49am
Image

first test went well
Congatulations! after all those years, finally, a complete LEV! :thumb:
Keep practicing and post a video!
by trazor
Feb 16 2019 1:19am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

Hi all I spent some time to clean-up and translate the interface of JBDtools , the latest (v1.A) version. As I still haven't received my BMS unit, I surely missed some fields or made translation quirks. Please let me know. https://images2.imgbox.com/f4/78/GP3t7HYV_o.jpg http://cjoint.net/?b04euy5jp...
by trazor
Feb 12 2019 3:27pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

I have one of this bluetoot BMS,it is 10S.Can i meke it 14S when sort 13 and 14 pin?Has anyone tried this? Post a picture, without the aluminum panel on the cell numbers labels side. These BMS come in ranges. 15 to 20S, 20 to 30S, etc. We don't know your model. 15s smart bms10.jpg it is absolutely ...
by trazor
Feb 12 2019 12:47pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

kocetoMR wrote:
Feb 12 2019 12:40pm
I have one of this bluetoot BMS,it is 10S.Can i meke it 14S when sort 13 and 14 pin?Has anyone tried this?

Post a picture, without the aluminum panel on the cell numbers labels side. These BMS come in ranges. 15 to 20S, 20 to 30S, etc. We don't know your model.
by trazor
Feb 11 2019 1:20am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

In my experience, reconfiguring a 20s to 16s BMS from James requires: 1) Rewire the cell pins (some pads are joined) probably, but how to find out the right combo? i dont want to kill something ;( Some examples. Apply to other boards 15s smart bms10.jpg 15s smart bms11.jpg 15s smart bms12.jpg 15s s...
by trazor
Feb 10 2019 5:31am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

iam freakin out right now.... i have also a 20s BT BMS from JPB/James. i wanted to use it for a 16s Battery. So in the PC Software/Settings i set it up to 16s. but it does not show me the last 4 cells. if i measure at the battery balance wires everything is fine. 2 of the temp sensors (3+4) show me...
by trazor
Feb 08 2019 3:50am
Forum: E-Bike Non-hub Motor Drives
Topic: OpenEMoto
Replies: 57
Views: 6813

Re: OpenEMoto

by trazor
Feb 08 2019 3:47am
Forum: Items Wanted
Topic: Fork Fenders DNM USD-8 upside down
Replies: 3
Views: 318

Re: Fork Fenders DNM USD-8 upside down

Too expensive for those dumb plastic parts. I've made one myself using Sintra plastic, heat gun and can of black paint.

https://www.foamboardsource.com/sintra- ... board.html
IMG_20190208_042203.jpg
by trazor
Feb 06 2019 3:59am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

Sean9002, i think it lost pressure, which kept the rebound needle from backing off the orifice, thus the super slow rebound. full diagnosis soon trazor, sure. actually i haven't filled it w/ oil yet, that's the messy part. will make a video soon. btw what's your complete frame weight without shock ...
by trazor
Feb 06 2019 12:32am
Forum: E-Bike Non-hub Motor Drives
Topic: OpenEMoto
Replies: 57
Views: 6813

Re: OpenEMoto

IMG_20190128_174433.jpg
Testing automotive paint. Silicone plugs in place. I'm fed up of rust.
by trazor
Feb 06 2019 12:28am
Forum: E-Bike Non-hub Motor Drives
Topic: New build, BHT mid-drive "direct", custom frame
Replies: 122
Views: 16095

Re: New build, BHT mid-drive "direct", custom frame

i picked 1.8mm wall thickness because thinner is very difficult to weld w/ my 0.9mm fluxcore wire, at least w/ the machine i have. anyway i just picked up a co2 tank. let's see if i could weld 1.3mm wall w/ MIG. i could probably get away w/ using thinner wall for the saddle bracket https://i.imgur....
by trazor
Jan 30 2019 2:02am
Forum: E-Bike Non-hub Motor Drives
Topic: E-Mini Pit Bike
Replies: 19
Views: 1242

Re: E-Mini Pit Bike

Incredible build!
Which program are you using to CAD design? I saw your videos and could not identify it.
by trazor
Jan 30 2019 1:14am
Forum: Battery Technology
Topic: vector typhoon charging
Replies: 5
Views: 192

Re: vector typhoon charging

:roll:
by trazor
Jan 25 2019 12:55pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

I will make some time to try to desolder these mosfets and post the results. Many thanks for sharing your knowledge! If you plan to work with FETs i'd suggest buying a hot air station. It makes working MUCH more easier. You can heat bigger parts of the PCB an ensure proper solder flow, as well as d...
by trazor
Jan 25 2019 12:29pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

Oh wait. I didn't connect my load to P-. I connected battery to B- and load to C-. As these BMS say "charge and discharge port: same" I thought it was the same. And is the vendors pictured connection method It's ok to connect load to C. Even though it's C=Charger. And P=Power. So i connected my con...
by trazor
Jan 25 2019 12:24pm
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

I will make some time to try to desolder these mosfets and post the results. Many thanks for sharing your knowledge! If you plan to work with FETs i'd suggest buying a hot air station. It makes working MUCH more easier. You can heat bigger parts of the PCB an ensure proper solder flow, as well as d...
by trazor
Jan 25 2019 3:51am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 947
Views: 60613

Re: bluetooth BMS?

I maybe try to repair it as you suggest. I don't get voltage on the serial port. Can that be an indication of a major problem, not only with the mosfets? About the overload... I didn't pull so much energy. I was using my bike with a Kelly KBS72121X with a Denzel4500 motor. Probably not more than 60...
by trazor
Jan 24 2019 11:04am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 3226
Views: 205095

Re: Sur-Ron - New Mid drive Bike

I couldn't find much information or conflicting information on the fastace BDA53RC rear shock, was it was designed for a motorcycle or bicycle?. For some reason the suspension seems really good on the Sur-Ron and made me believe that perhaps it used a motorcycle rear shock. I did find on their PDF ...