Search found 22 matches

by Michael B
Nov 12 2020 2:31pm
Forum: General Discussion
Topic: What is happening with the forum this week?
Replies: 33
Views: 728

Re: What is happening with the forum this week?

Yep. Been ok the last few days. Thanks.
by Michael B
Nov 09 2020 8:04pm
Forum: General Discussion
Topic: What is happening with the forum this week?
Replies: 33
Views: 728

Re: What is happening with the forum this week?

Been happening for over a week but does connect sometimes, like now.
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by Michael B
Oct 19 2020 7:42pm
Forum: Battery Technology
Topic: Split ebike battery
Replies: 67
Views: 1923

Re: Split ebike battery

In my 13s3p triangle example earlier I planned it out beforehand as best I could. I wanted to use the pre-formed nickel (with slits) to make the spot welding process less fiddly. In my low amp application I still wanted to have at least two serial connections between each trio of parallel cells. I w...
by Michael B
Oct 17 2020 6:53pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Mobility Trike Build With Coaster Brake
Replies: 11
Views: 525

Re: Mobility Trike Build With Coaster Brake

The torque PAS is working out great, and one of my rewards for doing this project was the chance to experience the torque PAS during my preliminary tests. I'm even thinking about putting a 48v TSDZ2 with a throttle on one of my trikes in place of the current Bafang BBS02. Despite the oh so regular ...
by Michael B
Oct 13 2020 4:10pm
Forum: Battery Technology
Topic: Split ebike battery
Replies: 67
Views: 1923

Re: Split ebike battery

That Malectrics spot welder is the one I bought. It worked fine for me. As an example this is the 18650 (LG MH1 - 3200 mAh) 13s3p triangle shape I made. Bluetooth BMS (~150 x 65 x 12mm) sits along the top where it says 142. You should be able to come up with something in 52V flavour that will fit. 1...
by Michael B
Oct 12 2020 2:32am
Forum: Battery Technology
Topic: Split ebike battery
Replies: 67
Views: 1923

Re: Split ebike battery

Play around with this battery shape configurator.

https://e4bike.ru/page/battery-shape-co ... 6336197183
by Michael B
Oct 11 2020 6:22pm
Forum: E-Bike General Discussion
Topic: A new 700C hybrid 'city-bike' build w TSDZ2
Replies: 24
Views: 916

Re: A new 700C hybrid 'city-bike' build w TSDZ2

Just weighted my bike (well me then me holding the bike). Difference was 17.8 kg, so just over 39 lbs. Includes mobile phone and lights on the bike, 13s3p shrink wrap battery, but no water. I actually put my batteries together. I've made three. 13s3p in 13x3 oblong configuration. 2nd hand LG MJ1 cel...
by Michael B
Oct 10 2020 4:05am
Forum: E-Bike General Discussion
Topic: A new 700C hybrid 'city-bike' build w TSDZ2
Replies: 24
Views: 916

Re: A new 700C hybrid 'city-bike' build w TSDZ2

Quite right. I guess the other factor will be how much clearance there is between the dished 42 you have now and the chain stay, and if you go bigger and dished is there enough clearance? I changed my cassette too and the rear derailleur won't work with the 40 or the 35 (they are still clean) but it...
by Michael B
Oct 10 2020 2:02am
Forum: E-Bike General Discussion
Topic: A new 700C hybrid 'city-bike' build w TSDZ2
Replies: 24
Views: 916

Re: A new 700C hybrid 'city-bike' build w TSDZ2

Put the original 13-26 cassette back on. :)
by Michael B
Oct 09 2020 10:15pm
Forum: E-Bike General Discussion
Topic: A new 700C hybrid 'city-bike' build w TSDZ2
Replies: 24
Views: 916

Re: A new 700C hybrid 'city-bike' build w TSDZ2

The experts are probably going to tell you that the 11 cog on the cassette isn't going to last so it may still be an option to reconfigure the cassette and move the 11 to the inside behind the 28 to get the 13, 15, 17 further out. On the flat you probably want to set it up so you spent a lot of time...
by Michael B
Oct 06 2020 6:54am
Forum: E-Bike General Discussion
Topic: bbs02 - what size chainring for my commuter?
Replies: 54
Views: 2192

Re: bbs02 - what size chainring for my commuter?

I'm using a 54T chain ring on my mid drive kit ebike. While I initially looked at the BBS02 in the end I discovered the TSDZ2 and went with that because of the BB torque sensing feature. I haven't fitted the throttle and just set the desired assist level when turning on and then let gear selection, ...
by Michael B
Jan 23 2020 3:39am
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1489
Views: 156035

Re: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18

Over the weekend i could test my software changes a bit more and finetuned the values. Think it is good now, so please give it a try. If you pedal slower than 15 revolutions per minute (4 seconds for one revolution) the motor stops assisting. Feels good to me, so please give it a try with the lates...
by Michael B
Jan 20 2020 3:50am
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1489
Views: 156035

Re: Tsdz2 firmware open source adapted to vlcd5

Actually I rechecked this today and I need to correct that. At 35-40 kph at moderate cadence and assist I get more like one full rotation. Yours looks more than that. I'm using a 54T narrow wide chainring. When changing down and slowing to a stop I get virtually no over run. The other day I must ha...
by Michael B
Jan 18 2020 3:55pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 403
Views: 81633

Re: Kepler Friction drive comes of age.

Find a 140kv or lower motor. Flipsky have one that will suit that is a 6354 size. I presume you have 20A cells in that 13S1P pack. VESC recommends a max of 12S however the components are rated at 60v so it should be ok. Thanks. So the 140KV Motor is actually H6368 which is tight but should still ju...
by Michael B
Jan 17 2020 9:17pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 403
Views: 81633

Re: Kepler Friction drive comes of age.

I really like the look of this for low assistance on an old 2006 vintage CF road bike I have.
Would prefer to use one with a 13s1p 48 volt 18650 battery as that's the voltage my other batteries and chargers are.
I'm a bit confused about what motor might be a possible candidate for this or not.
by Michael B
Jan 16 2020 3:56am
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1489
Views: 156035

Re: Tsdz2 firmware open source adapted to vlcd5

famichiki I saw your video. The amount of over run you are getting seems excessive I am using the Ackmaniac version on VLCD5 and I get about half a turn (180 degrees) of over run when I stop pedalling. Thanks for the info :thumb: Actually I rechecked this today and I need to correct that. At 35-40 ...
by Michael B
Jan 16 2020 3:39am
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1489
Views: 156035

Re: Tsdz2 firmware open source adapted to vlcd5

This? Ackmaniacs version uses motor current rather than battery current.

https://github.com/AckmaniacSoftware/TS ... rk/members

I'm using it with original VLCD5 display. I like it but I'm using only on the road, not extreme mountain biking.
by Michael B
Jan 15 2020 5:13am
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1489
Views: 156035

Re: Tsdz2 firmware open source adapted to vlcd5

I have learnt that official Tong Sheng torque signal values are 50-105 when viewed using stock firmware on a VLCD5 display. I described how to access the service viewing menu in my previous post. I saw my previous post about the torque sensor range was quoted on Jobike. I tried registering there bu...
by Michael B
Dec 13 2019 5:02pm
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 8048
Views: 867601

Re: Project and stable version 20 of Open source sofware

Here in NZ it is hilly, and usually quite a distance between towns, so a high power motor and high capacity battery is required. So I circled round to TSDZ2. The claimed power seems a bit vague. Is it really 750W, or 750W peak, or RMS, or yeah right! 5- TSDZ2? These are popular where 350W is the le...
by Michael B
Nov 12 2019 9:19pm
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1489
Views: 156035

Re: Tsdz2 firmware open source adapted to vlcd5

Ackmaniac wrote:
Nov 06 2019 3:57pm
Guess interesting would be
- Motor temperature
- Battery voltage
- Motor amps
- Battery amps
- actual Watts

Will test a bit when i find the time for it.
This would be really great.
by Michael B
Oct 19 2019 6:33am
Forum: E-Bike Technical
Topic: Am I asking for trouble? BBS02 on carbon road frame
Replies: 13
Views: 1890

Re: Am I asking for trouble? BBS02 on carbon road frame

Has anybody here got experience in using a pressfit spacer with mid drive? I bought an SRAM BB30 to BSA Bottom Bracket Adaptor but in the end didn't use it. I didn't like the internal BSA threads when I saw it and being concentric would make things harder for me. I have a Cannondale CaadX Ultegra 2...
by Michael B
Oct 10 2019 10:37am
Forum: Motor Technology
Topic: Tsdz2 firmware open source adapted to vlcd5, vlcd6 and xh18
Replies: 1489
Views: 156035

Re: Tsdz2 firmware open source adapted to vlcd5

I agree flufferty. :thumb:

I'm only using it at low power with a 48V 500W motor on a cyclocross bike used for commuting on sealed road with VLCD5 display.