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Thread: Team Triforce Featherweight drum

  1. #1
    TechAUmNu's Avatar
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    Euan Mutch
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    Robots: Triforce(HW) ESCS: A200S & A450S (in progress)
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    Been designing and building a drumbot for the featherweight champs this year.

    Battery: 12s lipo (2x Turnigy nano-tech 1550mah 6S 65~130C (450L Heli)
    ESCs: 3x focbox (or something custom if we have time)
    Weapon: ~5kG drum with 5060 380KV hub motor, hinged forks
    Drive: 2x NTM-4248, 4 wheel drive, invertable
    Armour: wrap around folded 4mm hardox 500, 2mm titanium top and bottom plates
    Frame: 20mm aluminium


    Some pics:
    2018-06-13 00_00_18-Window.png2018-06-12 23_42_02-Window.jpg2018-06-12 23_42_24-Window.png2018-06-12 23_43_09-Window.jpg2018-06-12 23_41_04-Window.png2018-06-13 00_02_26-Window.jpgimage-20180608_112225.jpg20180607_213801.jpgimage-20180611_220232.jpg
    Last edited by TechAUmNu; Yesterday at 23:05.

  2. #2
    overkill's Avatar
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    Nick Martin
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    Mr Mangle - Australian 2015 Featherweight Champion 2016 UK Gladiator Shiny Scissorhands Decimator
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    How are you running the NTM-4248 on 12S? A 5S rated motor will melt pretty quickly on 12S, or are you just powering them from one 6S pack?

  3. #3
    TechAUmNu's Avatar
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    Euan Mutch
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    Using vescs so they are just rpm and current limited.

  4. #4
    Nice Drum how big is the Diameter?

  5. #5
    TechAUmNu's Avatar
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    Euan Mutch
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    The aluminium core is 110mm, tooth is 153mm.

  6. #6
    TechAUmNu's Avatar
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    Euan Mutch
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    Spent most of the day turning down the first bearing holder/mount for the drum. Then made the titanium shaft fit into it.
    Got another one of these to make then I can test how the drum spins. Might need to limit the max speed a bit as I found the weapon motor is actually 380kv, so 19000RPM max at 12S (340MPH).

    image-20180617_161724.jpg

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