Endless Sphere

Hi, I know some people have had problems with '52v' units not actually being 52v etc... I drafted up a little programming manual for someone, maybe more people can get some use from it. It goes from making the programming cable, to installing and configuring the software (for windows) to the actual...

casainho wrote: ↑

Jul 02, 2018 4:02 am

I just added a section about blue nylon gear and metal gear, as also a section about brakes.

https://github.com/OpenSource-EBike-fir ... i/wiki/FAQ

Good stuff Casainho! Thanks! I can't help with the coding but I can help with the wiki. Let me know.

The strength of this motor is also it's weakness. It is able to produce waay too much torque at low speeds. It is this torque that is killing the blue gear. So, I think it would be very useful to add som sort of torque limiter to the controller. The Bafang configuration tool has 2 modes for the thr...

If anyone has done any thermal (or extreme riding) testing of both the 36v and 48v electric motors I would love to know which winding would be the most reliable when being fed 750w of power. I agree that IF the 36v winding can handle as much power reliably as the 48v motor then running a 36v motor ...

The cadence appears to be a product of motor winding and voltage. This is correct. This is how overvolters build 60mph e-bikes with hub motors. Although I have not seen any winding specs for these TSDZ2 motors it is clear that the 48v motor has more windings than the 36v such that it spins slower a...

Btw, this is the best installation video I could find: https://www.youtube.com/watch?v=l-l0wb299J0 I love the white cotton gloves and the bottom bracket coming off with no tools. That's exactly how I do it. :D Note at the very end he uses a special tool to dent the chainstay to make room for the ge...

On the LCD, at middle right is shown the motor watts and at middle bottom is shown the watts I put on the pedals: Read more here: https://opensourceebikefirmware.bitbucket.io/kunteng_lcd3 That is the coolest thing I have seen on a low-cost display! Awesome work Casainho! Some of us are using the TS...

Coaster Brake version, Broken Torque sensor. Another thing I noticed was that the big gear was solid, with no sprag clutch (one-way bearing) in the middle. This meant that the pedal spindle rotated with the chainring at all times, so if the motor was driving the chainring it was also driving the pe...

Not sure if I should bother adding the 2.5mm shim. Might fix the sound as motor still barely touching chainstay and maybe bending it .5mm Add the shim. Bad things can happen if you are tightening the gear reduction housing against the chainstay and not the bb as it was designed. Aluminum bb spacers...

Why bother? Stop pedaling and the motor stops... The GS is the most useless piece of kit. It only got popular with the inrush of folks that were not the best coordinated at shifting. I have 4 or 5 in my parts box. And until I pitch or donate they will stay there. Look back at the beta testing done ...

Is there Any reason I can’t use a bbs02 gear change sensor and wire it into one of my ebrake lines? Or would it not cut out for long enough duration? You should be able to do this just fine. We did this for years on Bafang motors before they started putting the gear sensor cable on the controller. ...

Seems that other mid drive motors can detect with a sensor when user shift gears and the motor coasts during a fixed time so the gears without motor doing torque -- is this feature a must have or is ok as it is without it on TSDZ2 motor? It is less important with torque sensing as the motor output ...

Actually Bosch Motors do gear "sensing". They don't have a sensor on the cable like some of the other solutions, but instead they sense a drop in torque output or something like that and stop outputting power briefly so the bike can shift. Actually, Bosch engineers noticed a consistent sound transm...

I'm still not convinced that cadence limit can be increased by reprogramming the firmware. To increase the cadence limit would require to increase the motor RPM and that is only possible by increasing the voltage if i'm not mistaken. Like someone here tried to use a 36v motor on a 48v controller. D...

There are plenty of eccentric adapter cups for BB30 and PF30. Use those and you'll have all the clearance you need. Do you know who makes those? Can you provide a link? FSA has adapters that work on aluminum frames but not on carbon because of the thickness. I would like to find eccentric adapters ...

If original controller just do 6 step/block commutation, I will prefer to use instead a Kunteng motor controller that even has a very good LCD and Bluetooth module for using with a mobile app. Going by this path, only the torque sensor will needed to be tested as it is really different from the one...

So far we are happy with the motor and I am looking into headlights and tail lights now. Has anyone found any good 6v led headlights (very bright) and tailights and turn signals? I don't want rechargeable usb, I would prefer to wire them directly to the 6v power leads and be able to use the headlig...

Hi, Does anybody know if TSDZ2 fits BB30 bottom bracket? I mean will it have enough space between shaft and motor to clear the thicker bottom bracket ? Bike is a Cannondale Scalpel 29er. That is a really good question. I assumed it would. I have done quite a few BB30, PF30 and PF41 conversions usin...

And guess what, seems that TSDZ2 motor controller uses the same microcontroller STM8S105C6 :-) :-) this means we should be able to use the same firmware with minor effort!! I have an ST-Link and have played with it a little. Here are a few things I have gleaned from around the web that might be hel...

Court finally reviewed the TSDZ2, doesn't look good. https://www.youtube.com/watch?v=0RxftD4vklw A few observations: - He loves the "torque sensing" and the throttle that other mid-drives don't have but overall gives it a "meh". Go figure. - He expects more power out of a 350-watt motor because it ...

... how many did you end up having "premature" trouble with (i.e., something that broke long before you would expect it to)? Asking because my unit lasted all of 5 days (30 miles) before the torque sensor went kaput... So far only a few issues. I am fairly new to the TSDZ2. I live in a 55+ communit...

RTIII wrote: ↑

Feb 14, 2018 1:09 pm

Also, based on your comments, I gather you haven't much experience with the TSDZ2.

You are right. I have only done about 20 TSDZ2 conversions. Whereas Bafang mid-drives are well over 100.

My first post (I think?): -- something like a 3 lb. battery. I prefer the frame-mounted batteries -- lighter batteries sold which fit on Shark mount on downtube? AS It's never a mistake in e-bikes to either buy more power than you think you need (unless there are laws, as in some countries in Europ...

And is it possible somehow to use the TSDZ2 without the torque sensor? TSDZ2 is not a specific model number but a motor family so it is hard to know what you have. If you happen to have the 8 wire version of the controller and VLCD5 display then you can use the throttle without the torque sensor. R...

In other news, I think I've figured out what's causing the issue. It looks like the newer frame has a cable guide right next to the BB on the drive-side chainstay on the bottom. It adds a significant amount of thickness to the chainstay and makes the simple removal nearly impossible. I think you ar...