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  1. oldpiper

    Doc, you still looking for good 8-gauge wire?

    I haven't been around for a while (that's what a job'll do to you), but the last time I was, Doctorbass was looking for some 8-gauge silicone-covered wire (the good flexible stuff). Well, I don't know if he's still here (couldn't find his footprints in a quick perusal of the forums), but if he...
  2. oldpiper

    Help Europe out! Slightly over-the-top suggestions

    As we all know by now, the Europeans are having trouble getting money to keep the continent from going belly-up. I've come up with a short list of suggestions of items to sell or services a country could provide to raise money: France – Bake sale England – Lawn mowing (it was an Englishman who...
  3. oldpiper

    Ebikes make front page of Pittsburgh Post-Gazette

    The guys at Pulse EV got a front-page story in yesterday's Post-Gazettte about their PEV0 bike, which apparently is being seen quite often around the Pitt campus. Yes, I know you (any of you) could build a better one, cheaper, etc., but this is really good for awareness here, especially in a...
  4. oldpiper

    Steve Jobs, not Apple vs Micro$oft vs Google(Android)

    Lots of posts (67 so far) in the Steve Jobs thread, but many of them are, IMHO, OT, going into the reasons to (not) be a fanboy about one company or another. SJ may not have been the best technical guy in the world; SJ may not have been the best programmer in the world; SJ may not have been...
  5. oldpiper

    About the newbies here

    From a relative newbie. Someone complained a day or two ago (about 10,000 posts ago) during all the excitement and uncertainty/confusion that the only ones who were trying to figure out a solution to the problem were the old guard - the newbies weren't contributing at all, so ***** them. Well...
  6. oldpiper

    Pittsburgh (PA)

    It looks like I might be moving to Pittsburgh soon, actually a little borough to the NE called Cheswick (I'll know how my interview went by the weekend). Anyone have any advice? Anyone know about any ebikers in the area? Good restaurants? The only thing I know is to stay away from downtown Pitt...
  7. oldpiper

    Anyone know anything about this bike?

    "Switch the rebel" ebike Found it on Target.com just now, looks like a Bafang hub motor(?) and the description lists 36V-10Ah lithium ion batteries and disk brakes. Cameron
  8. oldpiper

    IMR 26650 4000 mAh cells - Are they the same as the Konita?

    This is the first time I've run across an "IMR" LiMnNi cell, are they the same chemistry as DocBass's? Doc, could you comment? http://www.batteryspace.com/limnnirechargeable26650cell37v4000mah10arated148wh.aspx And/or anyone know anything about the company (AA Portable Power Corp. (dba...
  9. oldpiper

    Silicone battery?

    In another thread, yuhr pointed to this website asking about a particular Chinese ebike. It mentions silicone and lithium batteries available on other scooters, for $700 to $1000 difference between them (lithium more expensive). What are these silicone batteries? Cameron
  10. oldpiper

    Ezip 750 - more power?

    My boys both have Currie Ezip 750 scooters, 24V. Should I expect trouble with components (motor, controller) in pushing it up to 36V? I would be comfortable with a brushless setup, but IIRC, these are brushed motors, which I am not experienced with. Thanks, Cameron
  11. oldpiper

    The SECRET to making algae-based biofuels work

    Yes, if you can do this, it will solve the algae-to-biofuel problem and make you a very rich man: Keep the algae from sticking to the surface of a container (tube, etc.) without killing it. Just as simple (HA!) as that. The problem with algae-farms/reactors is that the algae sticks to the...
  12. oldpiper

    Questions (2) about lighting for headlights

    Geez - I go to a meeting for 7 days, come back, and there are 500+ threads (threads, not postings) in my "view unread posts" list. Anyway, I just got two Cree Q5 flashlights (No-name brand) for headlights on my bike for the princely sum of $6.78 apiece (with shipping) and a pair of...
  13. oldpiper

    Coming to terms with controllers

    Please help me get this straight - for today's ultimate (sensored?) hub controller, what I need to do is take Jeremy's "Simple BLDC Controller" (aka Lobocontroller) and integrate Burtie's "Timing Adjustment" enhancements with it somehow? And, Burtie, when will we know that your bits are ready...
  14. oldpiper

    ABS or other thermoplastic heatforming

    Does anyone here have experience with heatbending/heatforming ABS sheets (say 1/4 inch/6 mm or so)? Is it difficult to get the profile you want if it is not just a bend along a straight edge? How much heat do you have to apply, more than a heat gun,or do you actually have to put the material...
  15. oldpiper

    Battery thermal characteristics

    The AllCell battery packs have their phase-change filler (probably C20, maybe C21) to prevent thermal runaway on discharge. Just how hot do your batteries get when discharging, at least when discharging within normal parameters (not a dead short, not when discharging to below recommended voltage...
  16. oldpiper

    Li-ion, what is it?

    Try as I might, I'm still confused by some of the vocabulary here. The technology/chemistry behind the batteries, I'm okay with: SLA, AGM, NiCAD, NiMH, MgS, NaS, carbon-zinc, Zn-air, Zn-Ag2O, Duracell, Energizer Alkaline, lemon/potato clock battery, Weston cell, hydrogen fuel cell, methanol...
  17. oldpiper

    The Right Stuff?

    Whether this is "General," or "Technical," take your pick. It has been often said on these boards that the ebikes by the premiere builders ride much better than many (if not just about all) of the ones built by us amateurs. Maybe not faster, or even with a better range (but maybe both), but...
  18. oldpiper

    Should we be more active here in supporting our own?

    If I could take a quick tangent from another thread here Should knowledge from here be freely used for profit?, I'd like to have a thread/place/whatever which would list the members of these forums who are dealers/manufacturers of E-vehicles, associated stuff, or services (only those who want to...
  19. oldpiper

    Can you charge NiMH on a NiCAD charger?

    Not at the same time, just would like to know if the two types of batteries are compatible with one type of charger? Cameron
  20. oldpiper

    Battery question - SLA

    Yeah, I know some of you have already got the answer: "Dump (recycle) that cr*p and get some REAL batteries." But, please read on. Here's my situation, I commute a short distance to work, over city streets, my 36V 12Ah SLA setup gets me there and back, no problem with range, or AFAIC, with...
  21. oldpiper

    Tail, brake lights and turn signals (and power for them)?

    There was another thread, I think about a year (or year and a half) ago about this, but it quickly got hijacked into a "you ain't cool if you run dorky lights" argument, and from then on, everything was major OT. So, I would like to get recommendations for taillights and/or brakelights, and...
  22. oldpiper

    [Crocodile Dundee voice] "That's not a cruiser!"

    This is a cruiser! Schwinn StingRay OCC XL AmpedBikes hub motor mounted on 24" wheel, torque arm (on other side) (They suggest SS zip-ties for the torque arm. I don't have any of those, but I have all the nichrome wire I can eat.) 36V SLA in bag on rack (hey, it's a cruiser, not a racehorse!)...
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