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Dewalt Powered Mini Dirt Bike

Discussion in 'Motorcycles' started by jowybyo, Aug 25, 2019.

Page 2 of 2
  1. Apr 10, 2020 at 9:59 AM
    #21
    Jeeperwilly

    #21
    Jeeperwilly Well-Known Member

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    Sweet build! I'll be curious to see what you do for the current and braking issue. I may bug you for those plans in the future. I've been wanting to build something for my oldest.
     
    Jeeperwilly, Apr 10, 2020
    #21
  2. Apr 10, 2020 at 11:52 AM
    #22
    jowybyo

    #22
    jowybyo [OP] Well-Known Member

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    Currently, I don’t have a solution. You might want to consider using the 40v chainsaw. You can probably find it cheap since they discontinued that line of tools. I didn’t have any of these issues with the 40v. I think the motor braking and ramp up were less aggressive so it was better to adopt it to the mini bike.
     
    jowybyo, Apr 10, 2020
    #22
  3. Apr 10, 2020 at 6:51 PM
    #23
    Jeeperwilly

    #23
    Jeeperwilly Well-Known Member

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    Did a quick cruise for some used 40v DeWalt chainsaws on the interweebs locally and no dice. Found a lot of used Ryobi saws. I've used those before and they have a hard start and aggressive brake like you mentioned about the 60v DeWalt. I'll keep looking, but I really like what you've done.
     
    Jeeperwilly, Apr 10, 2020
    #23
    jowybyo[QUOTED][OP] likes this.
  4. Apr 11, 2020 at 8:37 AM
    #24
    jowybyo

    #24
    jowybyo [OP] Well-Known Member

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    I think I’m gonna buy a few different sprockets and see if an increased gear ratio will help lower the current draw. I’ll probably get a freewheel hub to avoid the motor braking issue.
     
    jowybyo, Apr 11, 2020
    #24
  5. Apr 11, 2020 at 4:30 PM
    #25
    Jeeperwilly

    #25
    Jeeperwilly Well-Known Member

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    How did you integrate the throttle for the 40v setup?
     
    Jeeperwilly, Apr 11, 2020
    #25
  6. Apr 11, 2020 at 5:22 PM
    #26
    jowybyo

    #26
    jowybyo [OP] Well-Known Member

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    I bought a cheap cable throttle off Amazon. Then I designed and 3D printed a “switch box” that holds the switch and a cam. The cam is rotated by the cable and actuates the switch. I’ll post pictures in a little bit.
     
    jowybyo, Apr 11, 2020
    #26
  7. Apr 11, 2020 at 5:45 PM
    #27
    jowybyo

    #27
    jowybyo [OP] Well-Known Member

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    jowybyo, Apr 11, 2020
    #27
  8. Apr 11, 2020 at 6:27 PM
    #28
    Jeeperwilly

    #28
    Jeeperwilly Well-Known Member

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    Jeeperwilly, Apr 11, 2020
    #28
  9. Jan 16, 2021 at 8:48 AM
    #29
    Pablo8

    #29
    Pablo8 Here!

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    OVT, 4.88, ADM, F&R ARB lock, KO2's, RWD L MOD
    I know a guy with a freewheel for your motor. Smallest is 13T though.
     
    Pablo8, Jan 16, 2021
    #29
  10. Jan 16, 2021 at 8:50 AM
    #30
    jowybyo

    #30
    jowybyo [OP] Well-Known Member

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    I forgot to update this thread. I got updated software to remove the motor braking feature. Ran pretty sweet for a few months until I hopped a curb and blew up the motor controller. Hoping to rebuild it again before spring.
     
    Last edited: Jan 16, 2021
    jowybyo, Jan 16, 2021
    #30
    davidstacoma likes this.
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