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Thread: Come Here And Say That Again - build dairy

  1. #11
    Outlaw's Avatar
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    Daniel Jackson
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    Ratatoskr (FW - Under Construction)
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    Well I did say some, not all. :B

    Though that second part is a pretty neat idea.

  2. #12
    Albear's Avatar
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    Alexander J
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    perhaps you could get 3D printed hubs instead of metal ones? might save a bit of weight and im sure you could knock them up in CAD and get something pretty solid printed

  3. #13
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    Alex Gee
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    Point Blank Infernal Contraption
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    Will you be using those dual board VESCs?
    And those motors are 80kV on 5S?

  4. #14
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    In build: Deadlock, Come Here And Say That Again, Now Would Be a Good Time To Panic Retired: Paradig
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    They're nominally 50kv motors (though we measured them as closer to 70kv), running on 10s. Originally it was going to be two of Deadlock's 5s 5Ah packs, but with the weigh issue I'm going to drop down to a more sensible 2.2Ah but still at 10s. I'm using two of these vescs: http://www.ebay.co.uk/itm/VESC-New-4.../182714259982?, which is basically what we have in Deadlock at the moment.
    At 50A it should be able to wheel spin with an opponent on top and have a top speed of ~25mph, but I think the arena's probably a little too small to reach that.
    Does anyone know what size the Robochallenge arena is?

  5. #15
    TechAUmNu's Avatar
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    Euan Mutch
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    If those are 50kv motors you are going to hit the erpm limit on the vescs

    Edit.. derp I am confusing myself on kv lol it will be fine
    Last edited by TechAUmNu; 16th August 2017 at 12:34.

  6. #16
    RogueTwoRobots's Avatar
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    Jamie McHarg
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    Robo Challenge arena is 3.6m x 4.8m if I remember rightly.
    Jamie McHarg
    RogueTwo Robots
    http://www.rogue-two-robots.vze.com

    With great power, comes great reliability.

  7. #17
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    In build: Deadlock, Come Here And Say That Again, Now Would Be a Good Time To Panic Retired: Paradig
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    The wedge has arrived, the bends look good but its also heavier than expected. Sigh. The '3mm' Hardox (That I was expecting to be around 3.2mm) is actually 3.4mm. I've looked at the different wheel options and I think I can loose enough weight there for this and the motor mistake, fingers crossed...

    2017-08-16 14.50.32.jpg2017-08-16 15.00.28.jpg

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