Recent content by daveyjones97

Neither the original or the em3ev 4110 contoller have displays, had to get an optional program cable to change settings. Also is and was sensorless. Think il wait til i get a puncture or the issue gets worse and take it apart. Does feel like phase shorting more than a gear slipping but thats...

Thanks, don't know if its geared or not, would assume not as its a cheap bike and a 12inch wheel. Also reluctant to change the hub motor as the wheel is cast not spoked. The wheel size is quite unusual. Prolly have to just open it and look for damage. Will likely just live with it rather than...

Hi guys, been on a hiatus with internet forums since I got told to tig weld something mundane on a MIG welding forum... Anyhow, since I snapped my 2wd ebike in half doing some urban moto x I found I hardly use my sensible dyu d1 as it feels SO slow now and I use my car instead. So having...

Thanks guys sorry for delay, been hair straight back busy. Pics

Pics coming, yes i reckon the end cells must be controlled through main + - wires. Problem i have is i started this when i was in a rush and pulled out the battery, chopped wires, had dinner, went to solder the new jst plug on and was like, oh? So im not sure which balance lead went where as i...

So i buy a electric skateboard and it needs a new battery, 6 groups of 4 18650s and measures 24v ish. The connector for the balance leads has 4 red wires a black wire and 2 blue wires which both are epoxied into a temperature probe. I want to use my rc 6s 5ah lipo bricks but they have 7 wire...

Sorry for the delay guys below is the thread i posted before with links to pictures as they wouldnt upload. Computers are not my forte and im desperately time poor. Controller has no markings on it the seller says he got it anodised black for better cooling(?) The ebay listing for it is...

Running sensorless. Thanks

So i bougbt an infineon type motor contoller with wheel and twist throttle off ebay and to my relief it works. However im curious what the unused wires are for. I know the b.g.y wires for motor power b.r contoller power the cycle analyst plug is there (r.black. blue.w.y.g) the throttle is hard...

Well uploading pics isnt working for sh. http://i1096.photobucket.com/albums/g325/daveyjones97/Mobile%20Uploads/1461408622167.jpg I have a photobucket link instead.

Well about 4 years ago i was ready to build an ebike then some things beat my bank acc and it never happened. a few weeks ago i found a hub motor and controller on ebay and being half able to afford it, i took the plunge. Anyhow the controller has no markings on it but the seller believes it...

Thanks bobc i think il get one made and see. Its so much neater than a second pair of sprockets and a shaft. Unfortunately the build is going to have to wait a few months yet after a bad few months financially but at least i have almost everything planned now.

:D :D thanks bobc roughly how much £, thats the deciding factor. Hillhater, the sprocket size extremes vary with the different chains; 35 219 or other. The 219 has a finer roller pitch hence higher tooth count for a given diameter. Cant post a link atm as on my fone. I think youre right that...

i have a pillar drill and some engineering experience but im not sure the .1mm i could probably achieve is enough. Where did you get sprockets made? Im in the uk. I would get it hardened after i made it. Would 8t make much improvement in noise and wear? if its made accurately enough it wouldnt...

ive got time to research and ponder things while i try and save up again for my ebike mid build. I realised if i use a kart 105t to a 7t drive sprocket on a 219 chain then i dont need a second set of sprockets for further gear reduction. The problem is i cant find anything like a 7t for 219...