Search found 19 matches

by Nick2
Sep 06 2020 10:51am
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 repair - need advice
Replies: 12
Views: 345

Re: TSDZ2 repair - need advice

I must admit that I don't really understand this design. As far as I can see, coils are paralel to each other, and that basically makes a transformer. Since the winding is in the direction of the rotation, it doesn't matter if the axle is rotating or not - it should work just the same. But the whole...
by Nick2
Sep 05 2020 12:19pm
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 repair - need advice
Replies: 12
Views: 345

Re: TSDZ2 repair - need advice

Replacement come without springs, I had to reuse my old ones.
by Nick2
Sep 05 2020 3:14am
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 repair - need advice
Replies: 12
Views: 345

Re: TSDZ2 repair - need advice

Yes, it is the same like yours. If they changed the design, at least they should provide some assembly instructions. Besides, I beleve that those nipples are there to take the pressure from the cable entry point. Anyway, it is too late now, it is glued by epoxy glue and I am not going to open it aga...
by Nick2
Sep 04 2020 5:58pm
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 repair - need advice
Replies: 12
Views: 345

Re: TSDZ2 repair - need advice

No, i did not find any traces of retaining compound. Also i got only one teflon disk originaly (replacement torque sensor came without it). And one of 3 nipples on the coil was missing, so i used one from the old coil and glued it in place with epoxy. All in all, pretty sloppy job. Anyway, I bought ...
by Nick2
Aug 30 2020 1:25am
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 repair - need advice
Replies: 12
Views: 345

Re: TSDZ2 repair - need advice

Thanks! Initially I had a pretty bad case of wobbliness, after less than 500 km's from new. At the time, It already started to eat into the plastic cover. I thought that the culprit was the sprag clutch, but it turned out it is not the case. Anyway, i put 5 small washers between the big gear and the...
by Nick2
Aug 29 2020 3:12pm
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 repair - need advice
Replies: 12
Views: 345

TSDZ2 repair - need advice

Hi! I manage to destroy my torque sensor, so I ordered a new one (had to wait for more than 10 weeks for the damn thing to arrive). I have 2 questions: - Static coil is spring loaded, consequently it is rubbing against the rotating coil (the force is not that big, but still...). Shall I put some gre...
by Nick2
Jun 07 2020 3:36pm
Forum: E-Bike Non-hub Motor Drives
Topic: Tsdz2 design flaw
Replies: 3
Views: 610

Re: Tsdz2 design flaw

This is an update: Few days ago I noticed new sprag clutch behavior: it seemd to be stuck in the "lock" position, acting as a solid unit. So the wobblines dissapeared and my TSDZ2 suddenly became the "coast brake version" of the motor. It did not have any adverse effect on the bike usability. The on...
by Nick2
Mar 23 2020 11:03am
Forum: E-Bike Non-hub Motor Drives
Topic: Hardware temperature control tsdz2
Replies: 129
Views: 15544

Re: Hardware temperature control tsdz2

Yes, I cut one strip of 10 mm thick thermo pad (100 x 30 x 10 mm), stretched it around the stator and put the cover in place. I tested it only once, climbed on one hill (altitude difference about 160 m). ambient temperature was about 15 degrees Celsius. Temperature climbed from 15 to about 30 degree...
by Nick2
Mar 19 2020 1:52pm
Forum: E-Bike Non-hub Motor Drives
Topic: Tsdz2 design flaw
Replies: 3
Views: 610

Tsdz2 design flaw

Hi! Having nothing to do in this days of self-isolation, I decided to make a spring service on my TSDZ2 bike that I assembled last year. So I realized that there is about 2 mm play in my front sprocket, way too wobbly for my taste and with only 500 km under my wheels Removing the front sprocket, I r...
by Nick2
Mar 19 2020 1:31pm
Forum: E-Bike Non-hub Motor Drives
Topic: Hardware temperature control tsdz2
Replies: 129
Views: 15544

Re: Hardware temperature control tsdz2

Hi! I added a termometer (for a bit of "steam-punk" flair, i put the classic capillary thermometer, without a single electronic component :-) I put the thermometer probe in the cavity behind the plastic cover and added some thermo pad to keep the pressure agains the housing. Not directly on the stat...
by Nick2
Mar 15 2020 7:09am
Forum: E-Bike Non-hub Motor Drives
Topic: Hardware temperature control tsdz2
Replies: 129
Views: 15544

Re: Hardware temperature control tsdz2

I put 10 mm thick pad on the same position, on The Dahon that I am building for my wife. I cut one strip of 10 mm thick metrial (100 x 300 mm), found out that when you strech it and wrap around the stator, it behaves like a mixture of clay and rubber, so It shrinks back with a bit of delay, just eno...
by Nick2
Jan 12 2020 6:34am
Forum: E-Bike Non-hub Motor Drives
Topic: Dahon Briza D8 and TSDZ2
Replies: 0
Views: 1128

Dahon Briza D8 and TSDZ2

Hi! I am looking for the e-bike solution for my better half and here are her requirements - Small, but not too small (mostly paved roads but also some dirt and gravel paths, so 20" is not optimal) Low step through frame, foldable, lightweight, torque sensing is a must I could not find any electric b...
by Nick2
Nov 06 2019 4:31pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7849
Views: 830626

Re: New "TSDZ2 Torque Sensor Central Motor"

Regarding the crank offset, I was also looking at it, found in my garage one old left crank with zero offset. Then I discussed it with the bike mechanic, he told me that he can convert it to the right crank (basically drill out the left thread and put a new bushing with the right threading). Then I ...
by Nick2
Oct 10 2019 12:46am
Forum: E-Bike Technical
Topic: Easy Pedling on electric Bicycle (Geared or Gearless)
Replies: 7
Views: 591

Re: Easy Pedling on electric Bicycle (Geared or Gearless)

It is difficult to objectively estimate the drag from the motor or even the clutch because human body is constantly adapting to new conditions. I call it the "electric legs" syndrom. When I started riding my TSDZ2 kit bike, I felt that there was no significant drag in the drivetrain. About a week la...
by Nick2
Sep 17 2019 2:59pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7849
Views: 830626

Re: New "TSDZ2 Torque Sensor Central Motor"

Hi! Yesterday I did my best to install the motor on a Trek Fx2 but I was not able to install the back bolt attachment. There is no room for it between the bike chain stays and the bolt support. Is there any alternative? Potential issues if I run the motor without it? I would be careful with that - ...
by Nick2
Sep 10 2019 3:36am
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 Sprag clutch
Replies: 4
Views: 1010

Re: TSDZ2 Sprag clutch

I checked local suppliers today, and almost fainted :-)
Prices are from 35€ for some Chinese brand, to almost 200€ for Stiber brand... :roll:
by Nick2
Sep 09 2019 5:23pm
Forum: E-Bike Non-hub Motor Drives
Topic: TSDZ2 Sprag clutch
Replies: 4
Views: 1010

TSDZ2 Sprag clutch

Hi! I have my TS about 2,5 months now and only about 360 km on the clock. It is running fine, but I noticed about 1mm play on the chainring already, and also some play on the crank. So it seems like it is time for new sprag clutch order... I can order new "Big Gear" from PswPower, but it will most p...
by Nick2
Aug 02 2019 8:23am
Forum: E-Bike Technical
Topic: How to plan how much battery I need for a TSDZ2?
Replies: 5
Views: 686

Re: How to plan how much battery I need for a TSDZ2?

Hi! I have TSDZ2 48V / 750W. From your parameters (1500m 8-9% incline), your home is about 120 - 135 m above the city level. I have similar situation, although somewhat lower (about 60 m above the city level). And I am a bit heavier than you. I have a LG brand 48V battery in 13s4p configuration, 12....
by Nick2
Jun 25 2019 9:59am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7849
Views: 830626

Re: New "TSDZ2 Torque Sensor Central Motor"

Hi! Newbie alert :D I also put a 750W TSDZ2 on my city bike and so far I am quite happy with it. For now I am using the standard firmware, maybe I will update it during the winter pause. I found on the web that quite a few people are complaining that it is not powerful enough and that 8Fun is better...