Search found 408 matches

by nonlineartom
Sep 20 2014 5:15am
Forum: Items for Sale - New
Topic: EU Group Buy for MXUS 3000W Hub Motor 177€ + Shipping
Replies: 337
Views: 32537

Re: EUropean Group Buy for MXUS 3000W Hub Motor ~187€ + Ship

I'm in, with shipping to the UK. Are these laced up as mentioned in the other thread?
by nonlineartom
Apr 23 2013 8:49am
Forum: E-Bike Reviews & Testing
Topic: FalconEV 19" triangle bag.
Replies: 207
Views: 41779

Re: FalconEV 19" triangle bag.

Seriously not happy with Falcon EV. My first bag ripped twice, where the zipper is sewn onto the canvas tore, despite fixing it up it tore again. Falcon EV refused to replace it so I relucantly purchased another one with n other options, paid over paypal. 3 weeks later I haven't got my bag. Asked fo...
by nonlineartom
Jan 03 2013 1:39pm
Forum: E-Bike General Discussion
Topic: rigid disk forks?
Replies: 12
Views: 761

Re: rigid disk forks?

Thanks for all the great suggestion, triple clamp straight forks are pretty but not really practical as they don't have any rake on them so the front wheel would be too far back, they need to position the wheel far infront of the pivot point to maintain that super stable ride and maintain the wheelb...
by nonlineartom
Jan 02 2013 4:19pm
Forum: E-Bike General Discussion
Topic: rigid disk forks?
Replies: 12
Views: 761

Re: rigid disk forks?

I wouldn't mind proper front suspension if it will fit, but I think it will make the front wheel too far back, not enough caster angle. I would love springer fork but they are near impossible to get in the UK and I haven't heard great things about the Monark fork.
by nonlineartom
Jan 02 2013 3:59pm
Forum: E-Bike General Discussion
Topic: rigid disk forks?
Replies: 12
Views: 761

rigid disk forks?

I've been riding my 2012 Schwinn Panther for a year now and on the whole it's awesome, but V brakes on mucky winter roads are just rubbish, I burn through pads at an alarming rate and all the brake dust really soots up the frame and gums up the brakes. There is no easy way to add disk brakes to the ...
by nonlineartom
Dec 05 2012 6:15am
Forum: E-Bike Build Threads / Photos & Video
Topic: Greyborg & HS3540
Replies: 19
Views: 2424

Re: Greyborg & HS3540

That was on eBay right? lovely looking bike, thought it was steel not alloy.

I've got a alloy beach cruiser I'm selling if you were interested. 135mm dropouts and disk mounts, not disimilar body style to this felt.
by nonlineartom
Dec 04 2012 2:57pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Toms build thread - poor mans stealth
Replies: 9
Views: 2465

Re: Toms build thread - poor mans stealth

Still got the frame, got a bit caught up re-assembling it, the swing arms don't rotate freeley and I think I got the bushings / bearings wrong, really wish I had made better note of how it went together, idiot. The 5306 has since been sold due to low funds but I'm hoping to re-start this build, mayb...
by nonlineartom
Oct 24 2012 2:06pm
Forum: E-Bike General Discussion
Topic: What ranges are you getting? Mine are bad.
Replies: 25
Views: 1204

Re: What ranges are you getting? Mine are bad.

12s 2p Turnigy Lipo (44V 10ah) I can get 20 miles absolute minimum out of it with minimal pedalling

10T mac motor, 35A limit, 25mph top speed,

lots of stop starts, no regen

Done 30miles before by setting lower current limit and pedalling more.
by nonlineartom
Oct 16 2012 4:56pm
Forum: E-Bike Technical
Topic: smoothing out the throttle
Replies: 48
Views: 7425

Re: smoothing out the throttle

could you combine your method with a ramp up of the throttle response to stop the lurch? inhibit the throttle signal so that it can't spike to full throttle in less than 100ms. Are you using the wires that plug into the DP-CA or using your own shunt? It was what I suggested originally in this thread...
by nonlineartom
Oct 16 2012 4:31pm
Forum: E-Bike Technical
Topic: smoothing out the throttle
Replies: 48
Views: 7425

Re: smoothing out the throttle

Will you have the same problem that you have when current limiting through the CA? that is, the system doesn't respond fast enough to override the throttle command. I can set the CA current limit down to 10amps, quickly twist the throttle and it will lurch forward with the full 50A for a fraction of...
by nonlineartom
Oct 15 2012 4:19am
Forum: E-Bike Technical
Topic: smoothing out the throttle
Replies: 48
Views: 7425

Re: smoothing out the throttle

our controllers are nearly all speed based, meaning even an innocent little 1mm of throttle is enough to demand say 6kph (sounds fine, till you realise the controller will give you absolute full tilt until this speed is reached, then nothing once you are there) thus we come off the back from this 1...
by nonlineartom
Oct 06 2012 10:32am
Forum: E-Bike Build Threads / Photos & Video
Topic: Toms build thread - poor mans stealth
Replies: 9
Views: 2465

Re: Toms build thread - poor mans stealth

slow progress. Chipping away all the paint in the bearing mounts because I didn't cover them, idiot. Also wish I had made a note of where all the bushings went, there are hundreds of them!
frame 2.jpeg
frame 2.jpeg (163.9 KiB) Viewed 229 times
by nonlineartom
Oct 03 2012 10:53am
Forum: E-Bike Build Threads / Photos & Video
Topic: Toms chunky KMX
Replies: 43
Views: 5170

Re: Toms chunky KMX

464357_10152128500875370_1974124282_o.jpg Painting the seat frame looks awesome. First tests however are.... dissapointing. The HS motor pulls 2.5kw on takeoff, but it doesn't wheelspin even on the slickest of slick tires and still bogs down going up a hill, in a way my 10T mac motor doesn't with l...
by nonlineartom
Sep 21 2012 3:57pm
Forum: E-Bike Technical
Topic: blown a DCDC converter
Replies: 5
Views: 474

Re: blown a DCDC converter

difficult to do. I've heard several cases of these lyen dc-dc's failing and killing the gear. Trying the mehtod of using a 2A switched power supply from a powertool charger to see if that works, feeding the 240V AC input with 50V DC and see if it will still happily pump out 12V DC. Results to follow...
by nonlineartom
Sep 19 2012 4:54pm
Forum: E-Bike Technical
Topic: blown a DCDC converter
Replies: 5
Views: 474

blown a DCDC converter

Had a 15W dcdc converter from Lyen, worked fine for a few minutes then trying it with a multimeter it all of a sudden started outputting the source voltage on the output terminals, I've heard about this happening to this type of DCDC converter and blowing lights / grear that's connected, didn't expe...
by nonlineartom
Sep 19 2012 1:18pm
Forum: E-Bike Technical
Topic: Calibrating a DP-CA
Replies: 4
Views: 366

Re: Calibrating a DP-CA

in the CA menu (from memory) there is only the option to set the resistance value of the shunt. Where is the zero set? Was I correct in saying that you just measure the shunt value in the controller to get the value?
by nonlineartom
Sep 19 2012 10:09am
Forum: E-Bike Technical
Topic: Calibrating a DP-CA
Replies: 4
Views: 366

Calibrating a DP-CA

My Cycle analyst when plugged into the Lyen 12fet controller reads -11W when just in standby and seems to be showing far too many amps. So whats the best way to accurately calibrate the CA, open up the controller and use a multimeter to read the resistor value of the internal shunt? Would I just hoo...
by nonlineartom
Sep 18 2012 2:43pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Toms chunky KMX
Replies: 43
Views: 5170

Re: Toms chunky KMX

photo 2.JPG photo 1.JPG photo 3.JPG steel battery box, 1mm sheet steel construction, whole lot powder coated metal flek white. Lovely finish, middle box is to hide all the wiring, got a fancy PCB being made that handles the DCDC converter for the 12v circuit for data logging box, lighting, horn e.t...
by nonlineartom
Sep 18 2012 2:36pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Toms build thread - poor mans stealth
Replies: 9
Views: 2465

Re: Toms build thread - poor mans stealth

photo 4.JPG
photo 4.JPG (114.68 KiB) Viewed 2119 times
tada, powder coated pearlescent white. it was a dam cheap job so a little rough around the edges but I'm sure I will bash the hell out of this frame as it's designed for trail riding.
by nonlineartom
Sep 11 2012 5:08am
Forum: Battery Technology
Topic: BMS Battery Alloy Shell Charger Problems
Replies: 597
Views: 47141

Re: BMS Battery Alloy Shell Charger Problems

No burn marks on the transistors, there are two inputs on the PCB titles "IN" separate solder points but both in a box called IN.

I am using it on 230V, tried a different power lead to rule out that as the problem. Hmmmmm what now?
by nonlineartom
Sep 11 2012 1:22am
Forum: Battery Technology
Topic: BMS Battery Alloy Shell Charger Problems
Replies: 597
Views: 47141

Re: BMS Battery Alloy Shell Charger Problems

The charger doesn't have a 110/230V switch on it, it's marked on the top of the case that it's for 230V though. The photo doesn't illustrate my concern very well. I think I'm being daft anyway, the live goes through a fuse then onto the PCB onto the "IN" point but it's a seperate solder point than t...
by nonlineartom
Sep 10 2012 5:19pm
Forum: Battery Technology
Topic: BMS Battery Alloy Shell Charger Problems
Replies: 597
Views: 47141

Re: BMS Battery Alloy Shell Charger Problems

Still haven't got round to posting back my faulty 1200W unit, bought another one in the meantime, I need a second one anyway. Took 3 weeks to arrive, plugged it in... BANG big flash of light out the plug and that oh so familiar smell of cooked electrics. Tripped the ring main in my house, turned the...
by nonlineartom
Aug 23 2012 10:57am
Forum: Battery Technology
Topic: BMS Battery Alloy Shell Charger Problems
Replies: 597
Views: 47141

Re: BMS Battery Alloy Shell Charger Problems

No life from it at all. No relay clicks on battery connect, no LED or LCD life either. emailed BMS battery, quoted them my order number and explained the symptoms, they asked for pictures which I provided, 24 hours later they emailed me back and said they would send out a replacement and pay shippin...
by nonlineartom
Jul 29 2012 7:51am
Forum: E-Bike Build Threads / Photos & Video
Topic: MARRS Electric Cruiser
Replies: 16
Views: 3954

Re: MARRS Electric Cruiser

I currently use 3" Kenda Flames on my cruiser, good tires but very thin side walls, the hookworm is much better with its kevlar sidewall but they are only 2.5" wide.

Duro Beachbums are supposed to be good but hard to find in the UK. I'm thinking motorbike tire is the way to go .