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Thank you elinx for the explanation and the wiki link. This picture is from the wiki and may be useful for those wanting better heat dissipation for their TSDZ2: using thermopads as thermal bridges to the outer case: Please note those pictures are of the TSDZ2. @alexfnoble do you have a...

Thank you for the pictures, and welcome back. useful as it is, it does not show the before after difference. Elinx posted a picture of your stator, perhaps elinx has also a picture of the tsdz2 stator so we can compare. By the way, the new motor looks very good

Can somebody post a picture of the tsdz2 stator to illustrate the difference

thank you for your vote!

I did remove the 90 degrees. It's not safe over 80 degrees. My experience is the controller gets cooked pretty good if ambient temperature is that high. Although in the TSDZ2 favour, it's not double glazing, it's more like a convection oven. I never have had to replace the motor inside on its...

yes, something like that, although for prototyping, we can do mostly here, up to pre-production samples. After that, we'll need a good Chinese partner to take over the project.That's when going to China is necessary. If this project works out, I have an idea about a new cycloidal gearbox for...

now you can see why we pressed alexfnoble for pictures of the DM-02 inside. I don't want a TSDZ2 copy. We are still waiting.

All the motors face the same temperature challenge, elinx, but I will bear that in mind. Demagnetisation at over 80 degrees C. If anyone is worried, i would suggest they stick some irreversible temperature strips on their motor. With hub geared motors, there is no such worries.

I will write the code for it, similar to the code I wrote for that guy who tried to add a throttle to his HESC suntour bike sold by Halfords. I can do that with the arduino or ESP32 or one of the new RISC V. The coding won't take long. I break out the PAS and throttle signals and use the torque...

yes and it's not easy. I use a similar form factor controller by Lishui in the Woosh Faro. The controller is inserted from the top of the top tube. I use a curtain string to guide the cables through the hole at the bottom of the tube. When everything is wired up, I add a small bung at the top to...

FETs I think. They changed them to IRFB3077 FETs with model B. ha ha ... in my dreams!

one of the guys used the word 'drop fit' to make the point. That made me smile. You should invite more people from ES and pedelecs.de to come over here to liven things up.

agreed. Woosh TSDZ2 cuts off at 15A. 10A average, 15A for short periods, is all the motor can take. 48V 15A is plenty enough for most people...

I intend to replace the main gear shaft of the BBS01/02 with another that incorporates a torque sensor. To reduce interference and ensure repeatability, the sensing element will be an in-house formula for a magnetoresistive compound and instead of pickup coil, it will be just ordinary contact...

thank you for replying. Maybe more members want to join in after your post. yes, I am sure you are right on this. They must have already got something like this knocking about in their product development team. If not, they can easily do something 10 times better than what I am trying to...

most of my kit sales are Mxus and Shengyi hub motors.

I followed up elinx link: https://www.pedelecforum.de/forum/index.php?threads/tsdz2-baugleich-sfm-du-250-tongsheng-schachner-mittelmotor-reparatur-und-einstellungsthread.50376/page-16#post-1264791 cejean made an interesting comment in the post. His kit did only 40km. I would have replaced the...

interesting. And thank you for the picture. Worth a thousand words. I never had to replace a motor because of high temperature in or out of guarantee and I never had to replace a bottom bracket spindle because the steel is soft, in or out of guarantee. I wonder how many motors and bottom bracket...

statistically not important - I replace maybe one a two controllers a year under warranty and Tongsheng give me spares anyway. Same with the blue gears.The things about the TSDZ2 that bug me is the play in the bottom bracket and water ingress. The main gear shaft needs extra ballbearings.

the problem that we have with cyclescheme.co.uk is not so much their commission, Halfords charge the same and we do more business with Halfords than with any other scheme. The problem is their contract running into hundreds of pages imposing too many restrictions. We asked them to remove one or...