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  1. S

    Doc EXTREME 36 FETS controller

    this is a tottaly ignorant question but how about copper grease?
  2. S

    A right angle gearbox?

    90 degree gears out of an angle grinder?
  3. S

    one way needle bearings on a 3x3 trike

    better late than never, some more basic info: http://s-86.com/s-trike4.html
  4. S

    one way needle bearings on a 3x3 trike

    It's definately possible. However I am sure you would find that one motor would automaticly slow down with the extra load and the oppersite for the other side. I have a design for a "one day" project of a super light mini buggy that powers all 4 wheels with a motor above each wheel as part of...
  5. S

    one way needle bearings on a 3x3 trike

    Miles indeed it is, thats in my lowest gear: crank 22T to the 32 tooth in the sprocket cluster, then an aditional underdrive with 13T sprockets on the center shaft and 18T sprockets on the either end. So 22:32 and 13:18, using only 20" wheels it means I have a 9.93 gear inches compared to 17.85...
  6. S

    one way needle bearings on a 3x3 trike

    thanks Miles, I will have a good look at the calculations and see how you worked it out. However I beleive that due to my lack of a proper explination you made a mistake. The drive is geared so 2 rotations of the crank equals one of the wheel shaft. So would I be right in saying that it would be...
  7. S

    Cheapo motors..............

    wow that really sucks then, no excuse for that
  8. S

    Cheapo motors..............

    RC use in planes or cars? if its in planes its pretty disapointing although not that suprising.
  9. S

    one way needle bearings on a 3x3 trike

    I forgot to mention I would have lots of room on either side otherwise the sprag clutch would be the go. Doesn't get around the fact that I want to put probably 5x the rated torque through it. Do you think a simple licking collar on either side of the bearing would surfice?
  10. S

    one way needle bearings on a 3x3 trike

    thanks for the replies guys, Now Miles my crank arms are 170mm from center of crank to center pivot of pedal. Weight is irrelevant because it's a recumbent trike and so I have something hard to push against. I would dare say I could do 100kg of pedal force peak for one leg at a time when I am...
  11. S

    Cheapo motors..............

    I know this is a bit of an old thread dig up but I have a question for you guys There is quite a bit of talk about bearing failure in these cheap motors. Now I don't think thats really fair on the brand of motor when thats not what they are designed for. Its like putting a thrust force a normal...
  12. S

    Recommendations for 2000 watt RC motor

    I also have one of these: http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=7870&Product_Name=TGY_AerodriveXp_SK_Series_63-74_170Kv_/_3250W I have not used it yet though. As far as I know though its rated at 3250W at 37V, so run on a 6 cell pack it will put out 1950W. Which is...
  13. S

    one way needle bearings on a 3x3 trike

    hi guys first post. I am custructing a 3 wheel drive recumbent trike and I am thinking of using one way needle bearings instead of this jigger I came up with: This thing acts like a crude differential for my two front wheels, it's basicly a coupling I made that fixes two ratcheting bmx...
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