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  1. nonlineartom

    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...
  2. nonlineartom

    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...
  3. nonlineartom

    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...
  4. nonlineartom

    BMS battery charger kicked the bucket

    Heres the deal, been using my BMS battery 1200W charger for about 4/5 months now everyday with no issues to charge my LiPo pack. I haven't balanced the pack in at least 3 months as no cells were off by more than 0.02V (checked every charge) Due to work commitments I hadn't ridden in over a...
  5. nonlineartom

    Magura Hydraulic V brakes?

    I've been looking at some Magura Hydraulic brakes on fleabay as a potential replacement for the piss poor cable V brakes on my beach cruiser. Even after a thorough clean after a few weeks one pad will drag on the rim and wear itself down fast. I go through an alarming amount of brake pads riding...
  6. nonlineartom

    General announcement - LiPo is scary

    CYQewP0uSno I had a couple of dud packs sitting at my parents, didn't really know how to safely dispose of them. My dad read up on how unstable LiPo was and saw that one pack was puffed up (@3.8V) and decided to "dispose" of them with a little style. It actually made me feel quite queezy...
  7. nonlineartom

    Toms build thread - poor mans stealth

    Another build! maybe I'll get round to actually finishing this one. Managed to get hold of a Carrera Banshee frame for £40 on eBay, it's based on a 2004 Kona Stinky and that's no bad thing, the frame was brand new, it seemed a shame to start tearing it to bits. I'd love a stealth fighter but...
  8. nonlineartom

    broken CA button

    After 6 months of good service, the right hand button of my large screen CA has stopped responding. I got caught out in the rain on a ride and then it was in the garage for a few days, next time I tried using it, I can't reset the trip counter, which is more than a bit annoying. Is this a...
  9. nonlineartom

    low cost 200W fixie friction drive

    A little project I'd like to work on... a super lightweight fixie bike with a road legal 200/250W assist friction drive to make hills a little easier. Can anyone recommend any particular hardware, I'm thinking a big Turnigy outrunner is overkill. Powerplant I'd like to use would be a single...
  10. nonlineartom

    not a happy mac motor - help needed

    wired up this mac motor just like my other working mac motor and this happened.... vFFoBOqNNQo The motor is brand new and is wired up to a Lyen 12fet with the same wires / colour combos as my other mac 8T which is of the earlier, none disc design. I tried going out for a ride and it just...
  11. nonlineartom

    low budget pocket rocket

    I picked up an 8T mac in a 20" wheel dirt cheap off a forum member, so I had to think of something good to do with it. So I picked up a beat up BMX for £10, I've never ridden a BMX before so decided to use it as a regular pedal bike for a week or 2 running errands and I'm really pleasantly...
  12. nonlineartom

    a bit off topic - running a projector on LiPo

    For an art project I'd like to run a 2500 lumen projector off an external battery pack, I have 1.2Kwh of LiPo lying around so I need to find a way to get the LiPo keeping the projector happy. I can't seem to find a power consumption spec for the projector but I'm sure it will be shy of what the...
  13. nonlineartom

    Alternatives to the Falcon EV bag

    I have had a falcon EV bag for a while now and it's was working great, until the seam tore and now it has a gaping hole in it. I've been working on a plywood frame triangle box but It's clunky. So who's got cool solutions for storing lipo in the triangle? Materials? Mounting solutions...
  14. nonlineartom

    H4080

    I emailed Kenny at Crystalyte ages ago asking about motors, he finally replied to me today saying that he is now selling the H4080 motor "We have new H4080 motor for 80km/hr in 72V system." So it looks like an HS with 40mm wide magnets not 35mm. $250. That's pretty dam tempting.
  15. nonlineartom

    wheel lacing - advice needed

    I need to lace up a mac motor into a 24" rim and I'm a bit lost as what to do, can anyone recommend a good source of appropriate spokes in the UK for the job?
  16. nonlineartom

    Kona Joe - the cruiser

    2006 Kona Joe, found whilst trawling eBay for cruiser parts for my Schwinn (build thread also on ES) I had never heard of it before and instantly fell in love with it's proportions and specs. I wasn't dissapointed when I got it and the build quality is just as good as the Stinky. It's an alloy...
  17. nonlineartom

    I won the LiPo lottery (this time)

    6 packs of 6s 5ah Turnigy packs from HK, every single one 3.85v to 3.86v. No puffed cells charged and balanced perfectly, stayed balanced on discharge I just wanted to share a good experience! :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen:
  18. nonlineartom

    taking it up a notch but keeping it safe

    My trike currently has a 5306 motor with big fat phase wires that I absolutely love for it's ability to climb any hill it's pointed at, but on the open flat it's a bit of a slouch even at 18s LiPo. I'd like to upgrade to a Lyen 18fet and run it at 30S for the best combination of speed and...
  19. nonlineartom

    replacing dead hall in a MAC

    I've got this 6T mac with a suspected dead hall. I've got the side case off and I can see the halls are mounted onto a PCB and the hall sensors themselves are epoxyed into the gaps in the stator. I've got a replacement whole PCB on order compelte with halls soldered in so now all that remains is...
  20. nonlineartom

    best pre-charge solution

    I'm moving up to 24s battery on my latest build and with the spark I'm getting at 18s I'm thinking a Pre-charge would a good idea. What resistor will I need for the best solution? I was hoping to use a Rally cutoff switch like this.. Mounting it in a small junction box and run the pre-charge...
  21. nonlineartom

    duff ping charger

    Ping 48V 2A charger just pulses green and red LED's when plugged in. plugging in the battery doesnt change this, the fan is spinning very slowly, the fuse is fine. Anyone know what the charger is trying to tell me is wrong? I tried to use the wattsup meter to check the output voltage of the XLR...
  22. nonlineartom

    swings and roundabouts - lipo charging

    My setup for my commuter bike is 12s 6p using 12 blocks of Turnigy 5000mah 6s packs, at the moment I'm balance charging each pack seperately using a Turnigy Quattro charger which is 5A per channel max run off a 20A power supply, when 4 packs are charging thats a full 20A charge. It's a massive...
  23. nonlineartom

    smoothing out the throttle

    My new build is a 10T MAC motor with a 12fet 50 amp controller running at 44V, the problem is, the takeoff from a standing start is a bit brutal. The MAC is renowned for it's ability to chow down on amps but it's really quite annoying that unless you really gently rotate the throttle it will...
  24. nonlineartom

    12V LED headlight recommendations?

    What do you use for lighting the way in winter? I'm looking to make use of the DC/DC converter to run some LED lights in an attempt to lower the risk of ending up as a smear on the road, what have you found best for headlights and tail lights ?
  25. nonlineartom

    MAC beach cruiser, through the eyes of a n00b

    Anyone who follows the ES facebook group will already be familar with my latest build, the Schwinn Panther beach cruiser. This is going to be the build thread about how I got to this stage, here she is as of today on her first "shake down" a nice 12 mile round trip too and from work... Before...
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