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Thread: Team Health & Safety - First Time Builder

  1. #71
    Zenith's Avatar
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    Greg Cathalina
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    Quote Originally Posted by Pinski1 View Post
    I'm glad you liked the hex drum. And I'm very pleased I didn't damage your gorgeous bot too much in our first round fight!
    Ha, thanks! Save for Bourbon's nibble, the big wedge is pretty much unmarked - I'll probably reuse it at some point.

  2. #72
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    Aftermovie time! I compiled all photos and videos into one single montage, and here's the end result (thanks to John Denny and his son for allowing me to use the fight vids). Looking back I'm quite amazed I managed to finish it, fight it, and get it through the Euros still working at the end of it.



    Anyways, enjoy. You can expect the first installment of the new build in this thread in the coming weeks.

  3. #73
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    Euan Mutch
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    Great video!

  4. #74
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    Brilliant stuff Greg! Great to meet, hope to see you back next time, Looking forward to TINAD 2!

  5. #75
    Zenith's Avatar
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    Quote Originally Posted by Jimmy View Post
    Brilliant stuff Greg! Great to meet, hope to see you back next time, Looking forward to TINAD 2!
    Thanks Jimmy! I'm curious too to see whether I can fit all new improvements within the same dimensions (and weight, lol). Looking forward to the new Catalyst as well - are you going to post updates when the time comes?

  6. #76
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    Quote Originally Posted by Zenith View Post
    Thanks Jimmy! I'm curious too to see whether I can fit all new improvements within the same dimensions (and weight, lol). Looking forward to the new Catalyst as well - are you going to post updates when the time comes?
    My Build diary on here is quite a way behind already , I really need to make time to update it just to reflect how Catalyst is currently, but yes I'll try to

  7. #77
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    DSC00974.jpg

    With the crate back home from the Euros, it's time to see where This Is Not A Drill did well and where it could be improved.

    The Bad


    • Drive power. Dear god, it was horrible. The 16mm motors are enough to get it going, but once it experiences any resistance at all the motors can't be bothered


    • The servo is too fickle for my liking. I'd rather have a simple motor with an ESC powering the lifter rather than something which shits the bed if the going gets tricky


    DSC00992.jpg


    • From a construction point of view the wedge mounts were a big risk. Had the bolts holding the nutstrips in place been torn through the HDPE then the entire chassis would have to be rebuilt. The wedge prongs also prevented me from using other setups.


    The Good


    • Despite the lack of power, I liked how it drove. Because the wheels are quite far back, it could 'swing' the front around when driving backwards - something I really liked.



    • The electronics also held up quite well. I'd learnt soldering whilst building and it seemed all of the joints were in fine order - TINAD suffered major hits but kept going, something which thoroughly surprised me.



    • The front armor. Both the wedge and the wedgelets held up fine, even though the big wedge suffered the full might of Bourbon's drum.


    DSC00977.jpg

    The one thing I was most impressed by though was its overall ruggidness - compared to other HDPE bots it struck me how obscenely overkill the chassis seemed to be. The chassis proved during the build it was already crazy strong without any screws or fasteners in any kind, and during the tournament the pieces of 15mm interlocking HDPE didn't budge at all. Oh, and still TINAD miraculously managed to stay nearly 200g underweight.

    DSC00986.jpg

    Also the wheelguards did the trick. 5mm HDPE can take a direct hit and remain in place - good.

    For the new version, I'm upping the drive power and I'm switching to a similar lifting system to Catalyst, as I feel it's both more powerful and more reliable.

    I'm also changing the front, aiming for completely interchangeability. I want various setups to be possible apart from the typical wedge, and this means the chassis will have to change.

    The only area where sacrifices will have to be made is coincidentally also the chassis - with the new drive motors and lifter system the chassis will have to become higher, and the additional room (and weight) required will force me to slim down some areas. If anything though, I should be able to have the same width and length. I loved the dimensions of the first version, so for the next incarnation I'm going to try and keep it this way. Now let's hope I'm also within weight again, ha!

    To be continued with the first build segment of Mk2! Watch this space.
    Last edited by Zenith; 11th September 2017 at 20:09.

  8. #78
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    How did you bend the hdpe into wheel guards?

  9. #79
    Zenith's Avatar
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    Quote Originally Posted by daveimi View Post
    How did you bend the hdpe into wheel guards?
    The easiest way to do so is by using a heat gun and C-clamps. The trickiest thing is to get the dimensions right, as everything has to fit ofcourse. You always have to allow some space for the bend itself.

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