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  1. E

    first build: 100ah 36v franken longtail cargo bike

    So its no longer a cargo bike, it is a cargo TRIKE with shocks, and its got a gas motor connected to the crystalyte.
  2. E

    first build: 100ah 36v franken longtail cargo bike

    I've been having an issue, the first being that with the battery in its current location, the bike likes to tip over even with two traditional kickstands. The second is that my golden motor controller hardly seems to have any meaningful power. Would placing the batteries on the top produce...
  3. E

    controller with built in boost dc dc converter possible?

    I just bought one of these at auction, and am going to try to make a controller. The plan is to have two sets of phase outputs, and have them switch between parallel and serial. http://www.appc.fr/download-media/news/98/document/78.pdf
  4. E

    controller with built in boost dc dc converter possible?

    I went to school for computer engineering, which is half computer science and half digital electronics. I got the part about the efficiency, but the english was what i have a problem understanding, specifically the use of voltage and current are wrong. What I was thinking of was building a...
  5. E

    controller with built in boost dc dc converter possible?

    I'm confused by what your saying, but i know that there is a loss of efficiency. I have a 36v 100ah battery, and would like to have it stay at 36v until RPMS max out, then switch to a higher voltage and lower current (like 48/72v).
  6. E

    controller with built in boost dc dc converter possible?

    I was wondering if a controller with built in boost dc dc converter was possible? I am fairly adept at EE, and understand the concepts okay, but was wondering if there were any open source controllers out there.
  7. E

    EBike Apparel: Jackets Trousers Gloves etc.

    I live in portland, so allow me to provide you with advise. Return those Icon rain apparrel, and get something that is actually waterproof, and not something made from ripstop nylon. Ripstop nylon has the tendency of not staying waterproof past a season or two, even if you try to re-treat it...
  8. E

    first build: 100ah 36v franken longtail cargo bike

    I am using the "hi-power" battery system I got the design idea from teklektik who told me about the design logic "da bomb" bike frame. The ICE is so that I can have something that runs a full duty cycle, I saw 3-4hp 35cc 4 stroke gas engines around for ~$300, and would be handy if i needed...
  9. E

    the best tool in the world

    yes, i did. This is basically a beefed up version of the clamptite, but there is an how to article on the internet, about how to make your own.
  10. E

    2WD Electric Yuba Mundo Build

    There is another version called a "clamptite" however the device is relatively simple to build yourself if you have tools, which i assume that you do by the complexity of your build.
  11. E

    2WD Electric Yuba Mundo Build

    I took your advice regarding the cargo bike situation, and have made myself one that looks like it, that I'm going to be prototyping on. http://endless-sphere.com/forums/viewtopic.php?f=6&t=47075
  12. E

    the best tool in the world

    take any ordinary steel wire, and make a clamp of any size. http://www.ebay.com/itm/Multi-Klamp-Mk2-GUARANTEED-clamp-strap-system-/121049820701?_trksid=p2047675.l2557&ssPageName=STRK%3AMEWNX%3AIT&nma=true&si=rfr4aO8WWRsT97CLNizpn4HbD6Y%253D&orig_cvip=true&rt=nc
  13. E

    first build: 100ah 36v franken longtail cargo bike

    This has got to be the best tool in the world, it can take any steel wire and make a clamp of any size, and it is mine...
  14. E

    first build: 100ah 36v franken longtail cargo bike

    because there is still sight, and my neurons are wired to want to combine the images, though I close my one eye alot. Also considering that a car has the kenetic power of a gatling gun firing, its just not a good idea to drive a car with any impediment.
  15. E

    first build: 100ah 36v franken longtail cargo bike

    I have 20/10 sight in one eye, and poor vision in another. I am more worried about killing someone with a heavy vehicle, and travelling 30mph is plenty slow enough to have decent reaction time.
  16. E

    first build: 100ah 36v franken longtail cargo bike

    So here is what I got so far, and I have no plans to go 50 MPH, but i would like to go long distances. Me and my wife are visually impaired (me from a gunshot, her from albinism), and aren't allowed to drive, but would like to be able to go on trips. We currently have a cruiser style tandem...
  17. E

    Raspberry-pi

    Also i should mention, the android computer, raspberry pi, and arduino are meant for different things. Arduino is a low power SOC, which is capable of running on a micro-amps, and great at collecting simple data, and sending signals to other devices . Raspberry pi: is a fully funtional...
  18. E

    Raspberry-pi

    I have both a raspberry pi (android capable), and an arduino + USB shield (android capable). I would like to do the programming to perhaps use an arduino instead of an CA, but I'm still assembling my bike, and I dont even have a functioning controller yet, much less the money to afford a fancy...
  19. E

    first build: 100ah 36v franken longtail cargo bike

    So here is what I got so far, and I have no plans to go 50 MPH, but i would like to go long distances. Me and my wife are visually impaired (me from a gunshot, her from albinism), and aren't allowed to drive, but would like to be able to go on trips. We currently have a cruiser style tandem...
  20. E

    Making Use of used laptop/cell batteries

    I was wondering if any of you had any opinions on buying used or even new batteries meant for laptops or cellphones for use in E bike. I have the time available, but money is a little short at the moment, and am wondering if its cheaper.
  21. E

    2WD Electric Yuba Mundo Build

    (first time poster) I have enjoyed your your posts on here, and I've been considering making my own yuba mundo, but instead making it a hybrid. My intention is to have a front wheel electric, and real wheel 35cc RC engine converted mounted in the middle, connected to the chain some possible...
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