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Thread: Team Bitza

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  1. #1

  2. #2
    I wouldn't be so negative. You learned a valuable lesson. Don't build a spinner from cast iron! It's too brittle and it failed right at the threads that you tapped in it (stress raisers). If that disk has been made from mild steel it wouldn't have had the same issues. My advice is to keep going with what you have and chalk this down to a lesson learned.

  3. #3

  4. #4
    The solenoid still works fine, it was the controller to turn it on and off that caught fire! Was an awesome attempt at an electric flipper. I do still personally favour a fast electric lifter though.

  5. #5
    Has anybody ever tried opposing magnets principle for an electric flipper? Had done some research and experements on the subject but the results were not so good...in theory should work tho

  6. #6
    I'm interested in what Dale did in a 1 or 3lb machine in the US. In short, he used a massive capacitor to dump 60v+ into a motor, and the torque produced when geared down was used on a flipper arm. Completely different approach, and probably very unreliable, but interesting.

  7. #7
    That's pretty much my plan, the amount of Torque fan motors produce at 24v should be enough for a very small gearing reduction (like 4:1 on a 15cm arm) with still more then enough power to throw opponents and of course selfright.
    Given how little travel a 4 bar mechanism actually goes through it should also be fast.

    Was hoping to use the same Li-Po but it may limit me on amps.

  8. #8
    The risk isn't losing power at the motor end, it's killing the LiPo due to discharging it way too hard. There's a C rating for a reason!

  9. #9

  10. #10
    I assumed that Li-Pos would just top out if you want more amps than they can give? I thought the discharging danger came from letting them drain too low.
    The amp draw is going to be very short and very powerful.

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