Search found 169 matches

by Retrorockit
Oct 25 2020 1:03am
Forum: E-Bike Non-hub Motor Drives
Topic: Hardware temperature control tsdz2
Replies: 143
Views: 16972

Re: Hardware temperature control tsdz2

Maybe nice for some people. Was searching in old posts, I saw also an idea for improving heatconductivity mentioned by hefest A lot of layers of aluminium foil until it fits snug. The original source I found on German Pedelecforum . Guiri claims a better heat dissipation. https://endless-sphere.com...
by Retrorockit
Sep 23 2020 12:16am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Hi all, I would like to share with the Forum what I did on the TSDZ2 engine to improve heat dissipation. Part 1 I acted in 3 areas: 1 - Installation of Thermal Pad according to what is described in this forum. 2 - Installation of heatsinks in the motor housing 3 - Lubricate the engine with a grease...
by Retrorockit
Aug 29 2020 4:32pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

TSDZ2 heatsink continued. I got my 3mm thermal pads and installed the heatsink ring today. 100x100x3mm gives enough pad to do the job twice in case of a mistake, or blue gear repair later. I removed the motor to install thermal pads on the armature between the motor screws, and put thermal grease a...
by Retrorockit
Aug 27 2020 6:34pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Nice work on the bearings and shafts. TSDZ2 heatsink part 1 I've taken tools in hand and started to make an aluminum heatsink for the motor. It's actually turned out to be pretty simple to do. I went to my local metal supplier and got a few pieces of 3"x 1/8" Aluminum tubing. For rough cuts they onl...
by Retrorockit
Aug 12 2020 10:09am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Reputable bearing manufacturers list a torque spec. for the one way clutch in the rubber/brass gear. It can vary quite a bit. I think I've seen them from 9-14Nm.
It's entirely possible that bearing fit , and quality may be behind the rubber gear problem.
by Retrorockit
Aug 08 2020 10:33am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

~88kg. Guess around 95 with camelback and other equipment. I would think bottoming out 160mm suspension on the other bike is a lot more weight on the pedals. Im not jumping the fatbike, but it is a hardtail, so maybe the shockload is higher after all...? Shock load is what will start a crack at the...
by Retrorockit
Aug 05 2020 5:47pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

.....It might take some play out of the sprag clutch. But I don't think it will help the broken shaft issue. It could be, but the modification is cheap and easy enough to try. On the other hand if the complete axle is supported by bearings from crank to crank I think it could help a bit, against br...
by Retrorockit
Aug 05 2020 10:45am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Continuing on my quest for removing play...... I was reading some posts on the German forum and saw a creative solution with 6902RS axle bearings. Instead of adding one extra bearing on the non drive side behind the dustcap, they ad also on the spider side an extra bearing, that works against sidew...
by Retrorockit
Aug 01 2020 5:35am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

The Xring seal has one inner, and one outer lip facing in, and 1 each facing out.
Lubricant for the seal can stay clean on the shaft and bore in between the 2 lips. It's a 2 way seal.
It slides on both the shaft and in the bore for low friction. So it will seem loose compared to other seals.
by Retrorockit
Jul 19 2020 2:58pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Yup the O ring ready ones are not widely available. I think I'll go with a non o-ring type and your suggestions as I can purchase them locally. They really should have put the o-ring groove on the inside of the spider instead. Looking at better quality blue gear clutch bearings, I notice some are p...
by Retrorockit
Jul 09 2020 9:34am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Something from my truck maintenance background is that when a hot sealed housing encounters cold water the air inside contracts and causes a suction that draws water into the housing.
Maybe a vent tube that runs up high away from any water could help? Something to try.
by Retrorockit
Jul 06 2020 6:30am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Balmorhea wrote:
Jul 06 2020 1:43am
Awesome! It’s engineered like... something that wasn’t engineered at all.
New meaning to the term "reverse engineering".
by Retrorockit
Jun 13 2020 2:21am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

The bulge at the front of the top tube looks like it was made for the battery. It looks nice and organic. I think you were lucky to get it in there at all. I suppose you just charge it on the bike?
by Retrorockit
Jun 12 2020 9:03am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

I think there is a setting for the assist to have a delay of several degress rotation. A lot of times this gets turned to 0. That is what it's there for. To keep the motor off when resting your foot on the pedal. I haven't used the OSF yet myself, but I think that's the setting you need to change.
by Retrorockit
Jun 10 2020 10:32pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Regarding putting the battery under the frame. Most forks have a plastic travel stop inside the spring on one side. A piece of plastic (Nylon?) rod stuck down in there could lose a few mm of travel if needed to keep from locking up the wheel and causing an OTB situation. This would not change the ri...
by Retrorockit
Jun 09 2020 8:12am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. ... Ah okay now I understood your solution, seems like a great idea! But I don't think it...
by Retrorockit
Jun 08 2020 9:22am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. I call it the switchblade mount. https://electricbike.com/forum/filedata/fetch?id=97888&d...
by Retrorockit
Jun 08 2020 9:20am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. https://electricbike.com/forum/filedata/fetch?id=97888&d=1575484709 By drilling and tappi...
by Retrorockit
Jun 08 2020 9:02am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

I linked to the photos in a previous post because the photo files were too large to post here. It shows a simple mod to the water bottle holes to provide a swing out battery removal using the standard bracket. https://electricbike.com/forum/filedata/fetch?id=97888&d=1575484709 By drilling and tappin...
by Retrorockit
Jun 07 2020 5:38pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Hello everyone. I just bought a Mondraker Foxy full suspension and I was wondering which battery may be the best fit for those frames. In particular I think there are two options: one above the down tube (on the triangular area) or below the down tube. Which battery type did you use, if you have a ...
by Retrorockit
Jun 04 2020 1:38pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

The advantage ATF would have over light motor oil is it has antifoaming additives that keep air from getting churned into it. Also 5W20 is only thin (5W) at room temp. and below, as it heats up it becomes thicker (20W). If the case is getting hot then it's removing heat. I store my ebikes in the hou...
by Retrorockit
Jun 02 2020 1:02pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

Somewhere there is a shaft from the motor into the gearcase. It probably won't be sealed because there was just air in both sides. You might ask NexusG what happened there. Who knows may be you'll end up with an automatic drip chain oiler.
by Retrorockit
Jun 02 2020 9:56am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

ATF is thinner, and has Anti foaming properties. If you want to do this you can clean the grease out of the roller/sprag clutches also. ATF is the perfect lube for those. ATF has become the normal lube for a lot of manual transmissions, and even the final drive on fwd cars. Adding fins to the outsid...
by Retrorockit
Jun 02 2020 9:31am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

There are people doing that with overvolted hub mtors. Either ATF, or metallic colloidal suspensions (ferro fluids) that cling to the magnets. But they say the 10x higher RPM of the mid motors makes it less practical. There is a lot of improvement to be had already by filling the air gap between the...
by Retrorockit
Jun 02 2020 3:33am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 7993
Views: 851017

Re: New "TSDZ2 Torque Sensor Central Motor"

My 1500W BBSHD says 750W on the decal. It's just matter of tuning. So it's hard to say what's really going on sometimes. There's also the matter of TSDZ2 backing off power above 80rpm and other nonsense. Caisanho's tuning may find the missing power. But more power can lead to cooling and rubber gear...