Search results

Date Relevance Most replies

  1. T

    Max eRPM for Sensorless Infineon sold by EM3ev.com ???

    Anyone know what the maximum practical eRPM for these are? Anyone try to run a 6374 type 149-200Kv winding range RC motor off one of them?
  2. T

    CVT Capability on Friction Drive, Cone-Driver/Tilting-Yoke ?

    Was watching a downloaded old Sci-Fi movie on my laptop last night ("Alternative 3" if anyone is interested) and had a sudden brain storm light bulb moment and dropped it down to half screen size and opened up my CAD in the other half of the screen and quickly threw together some quick 2D...
  3. T

    Cordless Drill Style Trigger Throttle Embedded in Hand Grip

    Years ago I built a cheap low power e-bike out of an old cordless drill. Used the drills motor and gear-box as it was with a single speed freewheel adapter welded to the front of the old key style steel chuck and mounted on the back side of the seat down-tube to drive the top of the chain above...
  4. T

    What are the best MTB free-hubs for the $$$ to use?

    Got a couple new builds in progress and have mainly finished welding the frame on the one that uses standard bicycle wheels (other don't). E-shopping for rear free-hubs and/or assembled wheels with same. Intend to use 8-speed cassette (9,10,11 speed chain too thin for my liking 8-speed max...
  5. T

    Electrolysis production of H2 for Solar electric airship

    For starters - Yes, I am aware of the Hindenburg disaster hydrogen (H2) is flammable and if not kept separate from oxygen (including the depleted oxygen level of normal atmosphere) can burn. It does however take a very hot spark (over a 1,000 degrees F) to ignite and only when it has been mixed...
  6. T

    Running 2 volt levels on motor to give 2 "gears" electricaly

    So, at a raw base most simplified level on a motor Amps = torque and Volts = speed So, considering that a hub-motor that only has one mechanical gearing ration (1:1 with direct drive something else with internal planetary gear reduction) or a motor mounted in the frame that only has one gearing...
  7. T

    Interesting RC Motor, 9014 Pancake ~Some potential possibly?

    Was just browsing around the various online motor sources I look at every once in a while and noticed this one I haven't seen before now available at hobby king: http://www.hobbyking.com/hobbyking/store/__29067__Turnigy_9014_105kv_Brushless_Multi_Rotor_Motor.html It's a 9014 (90mm...
  8. T

    Anyone tried running a RC low-Kv 6374 or 6354 motor on 12V?

    Would like to do a build using a 12V power system running off of 4s LiFePO4 prismatic cell pack (3.2V per cell = 12.8V). Reason being that then I could direct wire big bright full size LED tail lights, bright LED 12VDC track light bulb(s) as head lights, and maybe even a horn directly to the...
  9. T

    Custom Two Stage Bottom Bracket - Is it Feasible?

    Okay, yes I am a new guy. I have been lurking for a long time though and just signed up so that I could post this thread. There have been several threads here which have discussed bottom bracket drive systems which use the bottom bracket as the jack-shaft to combine the power of the motor and...
Back
Top