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  1. Solcar

    Anybody Deleting/Keeping Flash?

    I just have my Android phone right now which means someone else can handle it, I guess. The National Weather Service (in the USA) used Flash to display their radar images on their website. That was why I needed it. The new NWS radar graphics (not Flash) seem very poor by comparison...
  2. Solcar

    Slower than low

    I rode a 250w commercially made ebike that left my knees aching. It's not the lack of power that was the problem but rather the lack of torque supplied to the wheel. Going slower with more forceful assist was what I could have used on my ride.
  3. Solcar

    Motor Strength for Friction drive E-Bikes

    I think you're onto something. I recall reading of friction drive builds with outrunner motors having extra supporting bearings added to the project because the standard skirt bearings in the motors aren't up to the task.
  4. Solcar

    My situation explained

    Thanks. The bungee cord keeps it off the wheel when I'm not using it. Left hand can push down the drive wheel and the right one pulls up on the throttle. Once it grips the tire it pulls itself in and stays as long as it's doing it's driving.
  5. Solcar

    My situation explained

    Thank you. The speed is pretty close to what I wanted, less than 5mph. That's less strain on the drill motor and more drive to the wheel that I need, and I like going slower these days. I'll see if I can do something about images.
  6. Solcar

    My situation explained

    It turned out ok. I ended up going with the pivot approach as being easier. I made a mini rear platform at the end of the seat I slide back onto to keep the rear wheel on the ground for hard braking. Maybe it will also be able to give better stability by changing the weight distribution when...
  7. Solcar

    HubMonster mid-drive (who says chains have to be noisy?)

    The drive sprocket's teeth look shallow and pointy. That should allow the sprocket teeth to meet the chain more gradually (softly). The chain has to be tensioned more though. Those are some impressions I've picked up.
  8. Solcar

    new eZip motor

    You're welcome. I also had a currie wheel that I hoped to try out. I don't think it's a bad way to do it. I thought about band drive with a narrow pulley, which is a little different from a belt. The part where the band goes in a narrow pulley looks like it could be functional. However, I...
  9. Solcar

    new eZip motor

    I think you're looking for friction drive. I even saw one fella who took an electric scooter wheel and pressed it down onto his rear wheel, quite far back on his rear wheel, I think behind a rear rack, probably attached to the back of it. It was a few years ago when I think I saw a video of...
  10. Solcar

    Delta trikes vs tadpole trikes

    My thought on it is if Simon were to get any of the types of tricycles that seat lower to the ground than uprights, either delta or tadpole, that should help prevent it from popping a wheelie during throttle-up. He said he likes thrills when riding, and being lower to the ground might feel more...
  11. Solcar

    Delta trikes vs tadpole trikes

    Simon flipping back off his ebike made me remember a video. NCpzXIPXdAQ
  12. Solcar

    la Nina rears her ugly head

    I consider the dewpoint a lot. I begin to feel more stickiness here when it goes over 65°F.
  13. Solcar

    My situation explained

    The design is evolving whereas I was considering pivoting the motor assemblies into the wheel tire, not too different from the old EV Warrior way, but now it's looking more like the motor assemblies will be sliding into the tire on a track. That way looks to be able to get a better grip on...
  14. Solcar

    My situation explained

    Dogman Dan, I've been leaning a lot toward the drill-based friction drive. It's not too bad if I spend a couple hundred dollars for everything to have something operational. A thing I like about it is the plug and play battery system. I think a lot about reliable battery systems and...
  15. Solcar

    My situation explained

    MadRhino, A lot of those thoughts were like mine. I can do the drill idea, and if I don't like it I'll have a tool that I can use for other things. I kind of plan to have the drill be removable from the bike for when I don't have to ride on the big hill. I like the way the drive roller can...
  16. Solcar

    My situation explained

    MikeSSS, For lessening the side load I was thinking that the side of the friction roller shaft opposite of the drill could have a bearing, or a seperate roller shaft supported by bearings on both sides that the output shaft of drill turns, similar to that Stanton. I don't plan on using the...
  17. Solcar

    My situation explained

    I figure the grade hits 15% in at least one spot. Friction drive wasn't my preference, yet I see a lot of ifs concerning whether a hub drive system will be able to work on the bike, and the cost level of the entire project, though the freewheeling of a geared hub motor is something I'd like. I...
  18. Solcar

    My situation explained

    Markz, I was thinking about a hub motor kit. The hub might be too wide for the rear dropouts. The bike has an aluminum frame which indicates counter to spreading the dropouts. It would be important for me to have a 20" wheel with a geared hub motor in it that has the freewheel cluster and...
  19. Solcar

    My situation explained

    Lol. I was liking the way a moderately hard rubber roller was doing when I did some preliminary testing on that last friction drive project.
  20. Solcar

    My situation explained

    Cool. Earlier I was thinking of getting a Ryobi brushless drill to try to do it with. Your input adds impetus to that idea I was considering using a drill as the basis of a friction drive.
  21. Solcar

    My situation explained

    Hi, the situation is that I have about a 200' rise in about 3000' riding run. I need to get up that with only light pedaling, because that's all I can do. My legs are too old after all these tough 57 years. I was working on a friction drive project that might have worked but these hills are...
  22. Solcar

    "Spin Cycle"

    https://hackaday.com/2020/07/06/the-spin-cycle-washing-machine-motor-converts-10-speed-to-e-bike/ /hackaday.com/2020/07/06/the-spin-cycle-washing-machine-motor-converts-10-speed-to-e-bike/ I'm quite impressed. The flat wide motor should help a lot to provide needed torque and reduce RPMs.
  23. Solcar

    Friction Drive Project

    I decided to revive my low power friction drive project. I've removed the first mechanical gain stage. The increased motor windings loss should be offset by lower mechanical loss. The drive roller now is about a 2" rubber instead of a 2½" hard polyurethane one. The increased loss from the...
  24. Solcar

    Friction Drive Project

    Well, thought it would be good to update on the outcome of the project. It didn't work because the losses were too great. The greatest loss seems to have been from pressing the roller into the tire, even though I used a 2½" diameter one. I wouldn't want to use different tires besides the...
  25. Solcar

    2nd Bike w TSDZ2 assistance, this time to help with injury

    RTIII, I have used a notion that I heard quite a long time ago, that the main thing to consider in the sizing of a bike is that when seated, the feet should be able to reach the ground. That is with only the toes being able to reach and still be flat on the ground, but that is the only part of...
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