Power in Flux

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Type: Posts; User: Electro Flyers

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  1. Replies
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    flo, I strongly suspect the ICE in this bike is a...

    flo, I strongly suspect the ICE in this bike is a stressed member of the frame system. Without the engine bolted in, there may be excess flexing and possible cracking near the welded joint in the...
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    Thank you for the belt/sprocket supplier...

    Thank you for the belt/sprocket supplier reference. In a rough, quick comparison it appears the Gates Poly Chain GT Carbon belt/sprocket system(and its new clones?) has 1.5-2 X the power transmission...
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    It would be interesting for you to run through...

    It would be interesting for you to run through the calculations you have used to figure this out.
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    The Gates company (and others, now that their...

    The Gates company (and others, now that their patent is off) have a line of Poly Chain Carbon belts and sprockets that are much narrower than the older timing belts for the same power transmission....
  5. Thanks for the good work, Mike. My AV no longer...

    Thanks for the good work, Mike. My AV no longer kicks out the Web Site. It will a lot easier to contribute now.
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    Maybe you have a source. I have not seen motors...

    Maybe you have a source. I have not seen motors over 1kW using the two flat, "double D" shaft drive. The design is limited in its torque capacity. Many outrunner (RC) motors use 10mm output shafts...
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    This conversion example, while probably has close...

    This conversion example, while probably has close to the correct drive ratio for their set-up, is crude indeed. The motor is lashed to the main frame with turn buckles and vinyl coated wire cable! I...
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    You'll have to enlighten some of us as to what...

    You'll have to enlighten some of us as to what a"T8F sprocket" is. The vari-drive is usually a waste of time and effort with an electric motor drive. Drive ratio wise you'll probably end up with...
  9. Frodus, you are a very generous and creative...

    Frodus, you are a very generous and creative person as shown by this gesture. FA, you really should take up Frodus' offer. He's one of the good ones
  10. And... here come the Wikidumps. You know what...

    And... here come the Wikidumps. You know what you're doing is not science. It's like a futile effort to try to reinvent the wheel. But that's all right, you can make this a basic science project. Do...
  11. FA: why not start by posting a complete, up to...

    FA: why not start by posting a complete, up to date(not from months ago) schematic of what you have now.
  12. This statement doesn't make any sense. So let me...

    This statement doesn't make any sense. So let me get this straight. You're quoting from the old, other forum posts " verbatim" and you've chosen not to "clean it up" or "make it easier to read" for...
  13. This post is almost verbatim from a post on the...

    This post is almost verbatim from a post on the DIY Electric Car Forums:



    "Tired of waitin' & runnin' out of summer
    What the hlle, I'm goin' in (hope I don't mess this up)

    First, I...
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    I accept his apology. Let's hope lessons have...

    I accept his apology. Let's hope lessons have been learned and we can move on.
  15. No tensioners. The primary belt from the motor to...

    No tensioners. The primary belt from the motor to the jack shaft is tensioned by moving the motor in slots under the motor mounting bolts. The secondary belt (the sprocket in the photos is the front...
  16. I should have written MOVE or MODIFY Do you mean...

    I should have written MOVE or MODIFY
    Do you mean the cross piece that interferes with the top run of the chain? What I've done in these situations and have seen the factory do to clear the chain is ...
  17. I'm not suggesting you REMOVE the cross support....

    I'm not suggesting you REMOVE the cross support. I'm suggesting you MOVE or MODIFY it. If the chain is rubbing on the cross support, is this because of the large rear sprocket? If so, you could put a...
  18. Ditto on the cross brace mod or move for chain...

    Ditto on the cross brace mod or move for chain clearance. Looks like a steel frame-easy to weld. Although it looks like you've done a fair amount of aluminum welding. Something like this a good mod:...
  19. That's it Ted. I'm going solo the next album. I...

    That's it Ted. I'm going solo the next album. I think you're going to start drinking because you're worried about how to incorporate, and explain this complicated chain formula in the next edition of...
  20. Here's my take on this debate: Your analysis and...

    Here's my take on this debate:
    Your analysis and formula oversimplifies the relationship between the swing arm(SA) pivot axis and axes of the drive and driven sprockets. Think of there being a...
  21. MMs right. I forgot this is a dirt bike with the...

    MMs right. I forgot this is a dirt bike with the always or nearly always downward angled swing arm. Like he says an adjustable but non-articulating(no spring action) idler pully(no teeth) pushing up...
  22. I think we're just dealing with transition nerves...

    I think we're just dealing with transition nerves here. So let's try to be supportive. Unless, FA, some patron is paying you for each word posted. In which case, I think we should get a cut for...
  23. Because the axis of the drive sprocket is forward...

    Because the axis of the drive sprocket is forward of the swing arm pivot axis, the chain tension moves through a slack-tight-slack action as the swing arm moves through its travel. On ICE bikes,...
  24. Whenever possible, the tensioner should be on the...

    Whenever possible, the tensioner should be on the slack side(unloaded side) of the chain during acceleration. The one drawback is during regenerative braking, the tensioner will act like the...
  25. Yes! Reading it was like getting a breath of...

    Yes! Reading it was like getting a breath of fresh air. Or, a fresh charge on a battery bank. The information was all there and ready to go. Keep it up man.

    Speaking of keeping it up, you do not...
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