Search found 116 matches

by meelis11
Apr 19 2015 7:01am
Forum: E-Bike Build Threads / Photos & Video
Topic: KHS Crest with modified GNG v1.1 mid-drive
Replies: 8
Views: 1962

Re: KHS Crest with modified GNG v1.1 mid-drive

hi, what brand belt do you use? 900++ kms pretty good. btw what terrain do you ride? First original belt was Gates HTD, that lasted 1500km. Then four belts were Goodyear Whitehawk - they lasted 800-900km max, not more. Worst one was only 270km :S And that is commuting in mostly flat ground/pavement...
by meelis11
Apr 14 2015 7:44am
Forum: E-Bike Non-hub Motor Drives
Topic: Mongoose Salvo, GNG 1.1 build (in progress)
Replies: 25
Views: 11164

Re: Mongoose Salvo, GNG 1.1 build (in progress)

Why you give up - did you brake your belt or does belt skip?
by meelis11
Apr 14 2015 5:31am
Forum: E-Bike Non-hub Motor Drives
Topic: BBS02 Bad FET
Replies: 4
Views: 514

Re: BBS02 Bad FET

Really new to this. I don't want to void any warranty if it is something that should be done through that by opening it up. Another post mentioned a very faint click when engaging the throttle. It does have that faint click. They seemed very confident that it was a bad FET. I would contact to selle...
by meelis11
Apr 14 2015 5:11am
Forum: E-Bike Non-hub Motor Drives
Topic: Mongoose Salvo, GNG 1.1 build (in progress)
Replies: 25
Views: 11164

Re: Mongoose Salvo, GNG 1.1 build (in progress)

Did you file off sharp edges of both toothwheels? Probably not, do it. I did and my belt tooths look like new after 900km. Max they were lasted was about 800-900km but breaking belt is due to stock design (wrapping belt over too small tensioner and probably breaking/weakening fibers inside belt). I...
by meelis11
Apr 10 2015 5:12pm
Forum: E-Bike Non-hub Motor Drives
Topic: Mongoose Salvo, GNG 1.1 build (in progress)
Replies: 25
Views: 11164

Re: Mongoose Salvo, GNG 1.1 build (in progress)

Did you file off sharp edges of both toothwheels? Probably not, do it. I did and my belt tooths look like new after 900km. Max they were lasted was about 800-900km but breaking belt is due to stock design (wrapping belt over too small tensioner and probably breaking/weakening fibers inside belt). I...
by meelis11
Apr 10 2015 5:09pm
Forum: E-Bike Build Threads / Photos & Video
Topic: KHS Crest with modified GNG v1.1 mid-drive
Replies: 8
Views: 1962

Re: My KHS commuter with GNG v1.1 mid-drive and modification

After fifth belt broke, I decided that I need to do something about that idler pulley - belt is so agressively wrapped around it and like that probably weakens belt inner structure and then it breaks. Stock belt length is 475mm (475-5m-15), I ordered two belts with 460mm length (460-5m-15), so it is...
by meelis11
Apr 10 2015 4:31pm
Forum: E-Bike Build Threads / Photos & Video
Topic: KHS Crest with modified GNG v1.1 mid-drive
Replies: 8
Views: 1962

Re: My KHS commuter with GNG v1.1 mid-drive and modification

This post is about battery box making. Wanted battery box that is inside frame triangle and made of aluminium - so it gives some extra protection being hard case and can hold fire/flames inside in worst case scenario (its LIPO you know!). I did not want to fill all triangle because: a) I dont need t...
by meelis11
Apr 10 2015 3:55pm
Forum: E-Bike Build Threads / Photos & Video
Topic: KHS Crest with modified GNG v1.1 mid-drive
Replies: 8
Views: 1962

Re: My KHS commuter with GNG v1.1 mid-drive and modification

One of the first mod I made was to make front chainrings bigger. That way I can get better cadence and can bedal along with faster speeds without using small 11t sprocket in rear cassette. So I bought 53T chainring and bolted it together with 38T chainring (was inner chainring before). That 53T repl...
by meelis11
Apr 10 2015 3:23pm
Forum: E-Bike Build Threads / Photos & Video
Topic: KHS Crest with modified GNG v1.1 mid-drive
Replies: 8
Views: 1962

KHS Crest with modified GNG v1.1 mid-drive

Hi, I have this bike equipped with GNG mid drive almost 2 years already and better late than never...I am making build log here :) Maybe others can get ideas from my modifications and vice-versa. Battery: 44V 10Ah LIPO (4pc of 5Ah 6S Zippy LIPOs, in 12s2p configuration) stats so far (ebike conversio...
by meelis11
Apr 09 2015 3:19pm
Forum: E-Bike Non-hub Motor Drives
Topic: Mongoose Salvo, GNG 1.1 build (in progress)
Replies: 25
Views: 11164

Re: Mongoose Salvo, GNG 1.1 build (in progress)

Did you file off sharp edges of both toothwheels? Probably not, do it. I did and my belt tooths look like new after 900km. Max they were lasted was about 800-900km but breaking belt is due to stock design (wrapping belt over too small tensioner and probably breaking/weakening fibers inside belt). I ...
by meelis11
Mar 12 2015 3:26pm
Forum: E-Bike Non-hub Motor Drives
Topic: S12S and GNG motor issue
Replies: 10
Views: 1657

Re: S12S and GNG motor issue

I have this controller: 800W rated, 35A max https://bmsbattery.com/ebike-kit/667-s12sh-800w-35a-torque-simulation-sine-wave-controller-ebike-kit.html It there any particular setting that made big difference in smooth vs rough running? My actual settings are P1 - 180, P2 - 1, P3 - 1, P4 - 0, P5 - 10 ...
by meelis11
Mar 11 2015 2:57am
Forum: E-Bike Non-hub Motor Drives
Topic: S12S and GNG motor issue
Replies: 10
Views: 1657

Re: S12S and GNG motor issue

Hi, that seems strange: "My first controller from them was not enough powerful for GNG, it was suit for different power curves probably. ". if controller is weaker (less amps) then motor just seems weaker. But I am not expert, maybe it has something to tod phase angles/timing, like in my case ? Anyw...
by meelis11
Mar 08 2015 5:18pm
Forum: E-Bike Non-hub Motor Drives
Topic: S12S and GNG motor issue
Replies: 10
Views: 1657

Re: S12S and GNG motor issue

I guess S12S doesn't support mid drive kits. Hub motor has probably different phase angle. Check this http://endless-sphere.com/forums/viewtopic.php?f=2&t=65508 So your your conhismotor controller is similar? So your only problem was motor cutting out and it got fixed by P2=1 setting and speed sens...
by meelis11
Mar 07 2015 6:02pm
Forum: E-Bike Non-hub Motor Drives
Topic: S12S and GNG motor issue
Replies: 10
Views: 1657

Re: S12S and GNG motor issue

Hi, I also have similar problem - trying to use S12SH controller (and LCD3 display) with GNG motor. I tested all 36 hall-phase combos and for every hall combination (when testing 6 phase combinations) I get one forward and one reverse combination that does rotate but changes tone when rotating more ...
by meelis11
Feb 13 2015 5:34pm
Forum: Battery Technology
Topic: Homemade Battery Packs
Replies: 1676
Views: 486457

Re: Homemade Battery Packs

If confirm that this bank has weak cells inside and you would not want to separate all 50 cells in that bank, I would suggest: Charge that bank again and then split that 50P bank to five 10P banks (need to make four cuts). Let it set. after few days (or week) measure all five banks - bank(s) with re...
by meelis11
Feb 10 2015 4:57am
Forum: E-Bike Non-hub Motor Drives
Topic: Is this a viable idea? Disc Brake driven bike?
Replies: 2
Views: 629

Re: Is this a viable idea? Disc Brake driven bike?

Driving wheel near center gives you less torque.
Probably you cannot get enough traction there and rubber wheel starts to slip.
Small geared hub is much better.
by meelis11
Nov 04 2014 6:28pm
Forum: E-Bike General Discussion
Topic: US ebike Tour 6000 miles 2014 and Documentary feedback
Replies: 64
Views: 5568

Re: US ebike Tour 6000 miles 2014 and Documentary feedback

Cassette cannot be OK if you used one chain for 3000 miles, I am sure new chain starts to skip if cassette is not replaced. I commute with GNG mid drive and replaced chain after 1200km (0.75% worn) hoping that this time I can keep cassette. It still skips when more power is used! Last chain and cass...
by meelis11
Nov 03 2014 5:49pm
Forum: E-Bike General Discussion
Topic: US ebike Tour 6000 miles 2014 and Documentary feedback
Replies: 64
Views: 5568

Re: US ebike Tour 6000 miles 2014 and Documentary feedback

Tomas: We're all cheering you on. Keep the updates coming man, keep 'em coming. You have my total respect for riding in the US Northeast this time of year. I hope you will post what it has been like and how you deal with the weather: what you wear every day and what you do to stay dry, warm and com...
by meelis11
Oct 22 2014 3:54am
Forum: E-Bike General Discussion
Topic: Sensorless controller suggestions
Replies: 3
Views: 515

Re: Sensorless controller suggestions

Any other option, anyone? That BMSbattery controller seems quite good, at least when only reading numbers from web. But shipping there is little-bit killer - about 50-60$ to Estonia, when selecting other needed things (small and light ones)! Should I forget PAS and diplay and order infineon controll...
by meelis11
Oct 20 2014 5:14pm
Forum: E-Bike General Discussion
Topic: Sensorless controller suggestions
Replies: 3
Views: 515

Sensorless controller suggestions

Hi, I need controller for Bafang BPM motor - it is sensorless version. It is for this motor I asked info here http://endless-sphere.com/forums/viewtopic.php?f=2&t=64096 Want to use 48V battery, 25-30A peak amps would be ok i think. contollers with LCD and PAS option would be nice too. is this contro...
by meelis11
Oct 18 2014 3:08pm
Forum: E-Bike Technical
Topic: Bafang BPM motor with 6 wires?? (3 phase, 3 hall?)
Replies: 3
Views: 764

Re: Bafang BPM motor with 6 wires?? (3 phase, 3 hall?)

Thanks d8veh.
So if I win this auction I need sensorless controller.
With 48V battery can I expect about 40km/h max speed?
by meelis11
Oct 17 2014 2:35am
Forum: E-Bike Technical
Topic: Bafang BPM motor with 6 wires?? (3 phase, 3 hall?)
Replies: 3
Views: 764

Bafang BPM motor with 6 wires?? (3 phase, 3 hall?)

Hi, can somebody smarter explain, what kind of motor is this? It has connector with 3 fatter wires - these are phase wires. But only 3 wires for halls instead of 5? http://www.ebay.com/itm/281467148278?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT&autorefresh=true http://i.ebayimg.com/0...
by meelis11
Aug 18 2014 6:01am
Forum: General Discussion
Topic: mods to MOUSE- added page down key.
Replies: 14
Views: 1936

Re: will a laptop run on a 12v car battery?

Go get a boost converter - a DC-DC converter that is making voltage higher (12V to 19V).
Example http://www.ebay.com/itm/150W-DC-Boost-M ... 3a959a53c8
by meelis11
Jul 30 2014 4:51am
Forum: Items for Sale - New
Topic: CHEAP NEW ORIGINAL 18650 BATTERY CELLS AND PACKS
Replies: 793
Views: 214468

Re: Cheap cells 18650 LG 2850mAh and Panasonic's 2900mAh 3$

Hi, received package yesterday! Did not expect it so quick (took 5 days). Package was 2x40cell packs. Both packs have one side spotwelded, other side is partially spotwelded. I probably solder missing connections, I dont have spotwelder. Probaly configure them to 6P13S pack (78cells) - should be abo...