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  1. K

    Kabbage Commuter No. 2

    Finally got some time to press on with my battery; with the main four cell runs finished. BMS wires are a shocker to work around... So that's it, my 16S 10Ah headway LiFePO4. Running 48V (about 55V off the charger). Fixed to the bike via the aluminium spine with a 50mm M5 bolt...
  2. K

    Kabbage Commuter No. 2

    OK, so it's been a little while coming, but I've finally started on the battery; full-throttle gave me some nickel plate, which I'm cutting into approx. 10mm x 25mm tabs, which I bend in the middle. I can then tin the terminals of the batteries, and the tab, and then do the heat quickly with...
  3. K

    Pushbutton throttle?

    I've been messing around with this tonight - I've only got a range of resistors and things I've bought for this little project - got a range since they're like 35c a packet of 10.... Anyway, I've ended up with R3 at 128k (3x64k in series), which seems a bit higher than you were expecting, then...
  4. K

    Upload Your Circuit Schematics & Requests Here...

    Teklektik has been helping me over at http://endless-sphere.com/forums/viewtopic.php?f=2&t=50843&start=25#p797683. He's come up with a new circuit that works really well - tried it out today, it's great. he's also come up with an 'more improved' version at...
  5. K

    Pushbutton throttle?

    Wow. Ok. I figured it started to get into a complicated sort of mess with all the resistor ratios... I rode your first 'diode' version in to work today, and it worked pretty well actually, the small delay at the start was noticable, but didn't really impact on the operation - the power on was...
  6. K

    Pushbutton throttle?

    Well, thanks for that idea teklektik! I've knocked up this circuit tonight, and have tried it on the bike hooked up to a DMM like you suggested. I've used 10k for R1 (and measured 71k across the signal-ground of the controller). It gives a range from 0-3.84V, with a nice slow ramp over...
  7. K

    Upload Your Circuit Schematics & Requests Here...

    Ahah! You have helped me enormously. Armed with that knowledge, and some help from d8veh in the other thread, I have managed to get it to work. Swapped the 100k and 550k resistors out for 1k and 5k, dropped the 22k altogether and put in a 100microF cap to keep the ramp about the same, and...
  8. K

    Pushbutton throttle?

    Yeah, um, sorry. I didn't have the bits yesterday, so had a bit of a play to see what did what. Anyway, thanks D8veh! I am glad to report, I have got it working! Yay! I also crossposted on to Circuit Schematics at http://endless-sphere.com/forums/viewtopic.php?f=2&t=278&start=400#p796958...
  9. K

    Upload Your Circuit Schematics & Requests Here...

    I am trying to make a 'pushbutton throttle' with a delay based on this circuit: Which was posted http://www.endless-sphere.com/forums/viewtopic.php?f=2&t=34612&hilit=+Push+Button+Throttle+#p503699 by GMUseless. I just can't get it to work (see...
  10. K

    Pushbutton throttle?

    Thanks for your suggestions d8veh. I have a very sub-standard understanding of exactly how this circuit is supposed to do what it does, but I've had a further bit of messing around now. I made the first circuit with just the voltage divider - and guess what? It works just fine! so I guess I...
  11. K

    Pushbutton throttle?

    Well I finally got around to making this little circuit; And I've got a few issues. I've tried it by connecting up a 1.6V AA battery to the + and - and reading off the signal with my multimeter. The circuit seems to work fine: about .3V with button open, and about 1.3V with button closed...
  12. K

    Massive pothole comprehensively frocks BPM

    OK. Interesting... Only one way to tell; re-do the wiring and put it back and see if anything has changed... Otherwise, I guess it's a new BPM... :( If I do get a new one, do you just rip the guts out of the new one and put into the cover of the old one? Or would it be best to lace the...
  13. K

    Massive pothole comprehensively frocks BPM

    Well, I've just had the BPM taken apart... Actually, in retrospect, I think I could have got it apart without taking any of this off - just sliding it along the cable a bit... oh well. Anyway, now I've had it apart, I pretty much couldn't find anything wrong with it; the planetary gears all...
  14. K

    Kabbage Commuter No. 2

    I'm running three speed on the front chainrings, so need a tensioner.
  15. K

    Adrian's Bafang BPM Hardtail MTB

    Adrian, in an earlier post, you show a screenshot with a lot of controller parameters for setting up. I am planning on running my new bike without a CA as well - I have an Infineon controller from ebikes.ca. Is it possible to 'program' my controller too, without a CA? What software are you...
  16. K

    Kabbage Commuter No. 2

    So here's a picture of the real thing, which I picked up today.... and closeup of the rear wheel Here is the planned location of the battery; four of these suckers....
  17. K

    Massive pothole comprehensively frocks BPM

    Did I say the topeak rack was beautiful? Yes.... This is what I discovered tonight, when trying to get the wheel off - see that middle bar, it's supposed to go straight through - but it's bent to buggery. I've managed to bend it back by putting a shifter onto it, but aluminium being what it...
  18. K

    Massive pothole comprehensively frocks BPM

    Perhaps, as my work colleagues have suggested, having a 20-25kg lighter me on top of the bike would be the best thing... which is why they mock me for riding a bike with a motor in the first place, rather than one I (really) have to pedal, for exercise... Nah. If I wanted brake lights (and...
  19. K

    Massive pothole comprehensively frocks BPM

    Thanks for the offer FT - It'll take me a little time to get my self sorted out to fix this, so perhaps BM will be back by then - otherwise I might have to take you up on your offer! I also saw your kind offer re: Nickel sheet for my Commuter No.2 battery build - I am pretty sure I will take...
  20. K

    Massive pothole comprehensively frocks BPM

    Oh my. Back on the bike after about a year off, and on my third (count'em: 3) trip to work, I've encountered a massive pothole on Victoria Parade at about 40km/hr. It snuck up on me, and the rear wheel took a very big hit (and my battery is over the rear wheel too...) Well, it's...
  21. K

    Least-space method to join tabless batteries

    I have just got my Headway 10Ah 38120 cells from evassemble. I got the ones without the screw terminals to save on space. I am planning to make a long and skinny 16S battery from four groups of four batteries long, placed along a central spine arrangement. So what's the best way to join...
  22. K

    Kabbage Commuter No. 2

    Well, it's been 13 months since I broke my humerous falling off a skateboard, and so unable to ride the bike - I went in for surgery last week to have the arm 'mended' and they got around to looking at the X-Ray and saying 'well hell, it looks like it is acutally healing now - so no surgery for...
  23. K

    Perth to Sydney by ebike - ride preparation

    I know it's not a competition, but it does have one advantage over a trans-Canadian trip. The Australian one (or the western Australian bit at least) is comparatively as flat as a pancake. And I have been thinking further about this epic trip. Traversing Canada seems like fun (potentially)...
  24. K

    Perth to Sydney by ebike - ride preparation

    Wow. Just found this, sounds like an epic trip. Good luck. For our overseas colleagues, it might be worth pointing out that that this trip is broadly equivalent to riding across the continental USA. However, our population is only 21m people, and about 8m of them live in either Sydney or...
  25. K

    Sydney ebike noob questions

    If you want 'off the shelf', it seems the BH Emotion Neo is getting a lot of good reviews around the traps. If you have the technical ability (it's not that hard!) and want to build your own, then consider something like mine (see link in sig below) - it's a hub motor (changed from the...
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