Search found 175 matches

by Retrorockit
Jun 26 2021 11:10am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

Motor was pretty warm but not hot to the touch. Battery just slightly warm FE211630-4F7C-4574-B81A-E0F49E21313C.png The COVER was warm, the motor itself is much hotter. If you do the cooling mods the heat will move from the motor to the cover. Then it can be dissipated to the air stream. It's actua...
by Retrorockit
May 01 2021 4:48pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

Perhaps it's cheaper/easier for Tongshneg to do this than produce a reliable/consistent press fit.
by Retrorockit
Apr 26 2021 10:55am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

There is a casette I like from Sunrace. The 11-40T 8 speed. Good range, and the wide gear splits don't seem to bother the wide power band of electric motors. Very inexpensive also. When I swap chains I just swap the casette also. I did need a longer derailer hanger. For the rapid overheating issue. ...
by Retrorockit
Apr 25 2021 7:49am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New

I remember a while back seeing a post about the crank arms that come with the tsdz2 and how they’re not symmetrical: one side sticks out more than the other from the frame. I was fine with it until recently where I started going for much longer rides (50–70km). After these longer rides, I’m getting...
by Retrorockit
Apr 22 2021 11:22am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

I think we are pretty universal here in saying the TSDZ2 may just not be the engine for him and if he says thats he's from an engineering background, then I would suspect that he from his own lack of engineering understandings. As soon as you take a standard engine and modify it then you are in no ...
by Retrorockit
Apr 21 2021 3:10pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

coming from a factory firmware example so without temp readouts and watts etc, i did 20 miles at 20mph in level 3 of 4 recently, 60 degree day, mtb with risers, 26x2.1s, total weight probably 200-210. no thermal and motor barely warm to the touch. It's going to be cold the next couple of days, but ...
by Retrorockit
Apr 21 2021 2:28pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

coming from a factory firmware example so without temp readouts and watts etc, i did 20 miles at 20mph in level 3 of 4 recently, 60 degree day, mtb with risers, 26x2.1s, total weight probably 200-210. no thermal and motor barely warm to the touch. It's going to be cold the next couple of days, but ...
by Retrorockit
Apr 21 2021 12:38pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

I f that were true then wouldn't the Watts be high per speed /power produced?
by Retrorockit
Apr 21 2021 11:32am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

In the US safety studies have shown that the frequency and severity of bicycle accidents increases with the difference in speed between the bicycles and motor vehicles. But that seldom translates into laws. They're not bicycles, and they're not motorcycles either. They seem to want to treat them as ...
by Retrorockit
Apr 21 2021 11:19am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

I would have to agree that it doesn't look right to overheat that easily. Once it's hot it might stay hot makes sense without cooling. But overheating right away at low power seems wrong. I own one of each. For South Florida urban riding the power and reliability of the BBSHD wins out. But the TSDZ2...
by Retrorockit
Apr 21 2021 10:10am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

I would not assume that the temp mods won't work. The motor is basically in an insulated housing as it comes. It's not too hard to improve on that. I would try the mod I posted on page 339 first. It's simple, inexpensive, and makes proper use of both the thermal pads and aluminum sleeve from a desig...
by Retrorockit
Apr 19 2021 3:01pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

ebbsocalMTB wrote:
Apr 19 2021 11:13am

- 3.125" OD tubing. I'm trying to find some that's 1/8" wall... most everything is .065" or 1.6mm
The heatsink ring I made on the previous page was 3"OD and 1/8 wall. A pretty standard aluminum tubing size in the US.
by Retrorockit
Apr 19 2021 9:48am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

The speed setting is always in kph even with the display in mph. Set it at 40kph and you'll be good. Sorry to hear about the runaway motor. I don't think rear wheel braking is sufficient for an E bike to begin with. Having it pass through the motor is even worse. It's bad enough depending on a TSDZ2...
by Retrorockit
Apr 14 2021 7:38pm
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

Back in January there was some discussion on the sleeving of the motor for heat disappation on the thread https://endless-sphere.com/forums/viewtopic.php?f=28&t=102046&start=150 where we discussed the use of 76mm pipe. Can I add a few further developments to this. If you take a 76mmx 3.2mm ...
by Retrorockit
Apr 14 2021 11:52am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

I'll just copy the original instructions for this here. I hope I don't get yelled at for double posting. 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 go...
by Retrorockit
Apr 14 2021 11:35am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

Re: New "TSDZ2 Torque Sensor Central Motor"

Here is a photo of the TSDZ2 heatsink mod ready to be assembled. 3"ODx1/8"wall tubing with a gap cut and beveled to clear the capacitor on the controller. 3mm thermal pads behind it. Thermal grease. Slip fit w/o the pads. Tight with them so they're compressed. A block of wood and a mallet...
by Retrorockit
Oct 25 2020 1:03am
Forum: EBike Non-hub Motor Drives
Topic: Hardware temperature control tsdz2
Replies: 200
Views: 25043

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: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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 cut...
by Retrorockit
Aug 12 2020 10:09am
Forum: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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: EBike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8886
Views: 976788

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.