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Type: Posts; User: 5upercrab

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  1. Replies
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    Ahh gutted to miss this. It's been bedlam lately...

    Ahh gutted to miss this. It's been bedlam lately on PhD matters, so robot building has been a distant dream...

    Count me in for the next one hopefully. The pilot was really fun. Good luck to all...
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    I shall also chime in my thanks! A fun event well...

    I shall also chime in my thanks! A fun event well organised. Great to see you all. Hope to add a second bot for the next one.
  3. Gremlin - A simple 3D printed antweight pusher

    So I thought I would post my efforts leading up to Okracoke's Botfest pilot next weekend.

    I decided to keep this one simple and make a wedge type design. I may have a go at something more...
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    Signed up. Ashamed to say I had to look up the...

    Signed up. Ashamed to say I had to look up the answer to the captcha ...
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    Count me in. Might see if I can lash up an ant...

    Count me in. Might see if I can lash up an ant for then.
  6. https://www.bearingsrus.co.uk/transmisson-products...

    https://www.bearingsrus.co.uk/transmisson-products/chain-belt-tensioners/tensioner-components/se11-dunlop-tensioner-arm#product_tabs_additional_tabbed

    This is the sort of thing I have come across...
  7. I did have a look at car belt tensioners. They...

    I did have a look at car belt tensioners. They are rather large. Had a look for lawnmower ones too without joy. Will certainly have a dig for air-con tensioners! I do like the look of the...
  8. Yes the weld is the bit that has me wondering! I...

    Yes the weld is the bit that has me wondering! I am thinking that some small channels might be a good idea, for the melt to flow and improve contact area with the shaft. Like so:

    8013

    Maybe a...
  9. So I've been doing a bit more design work on...

    So I've been doing a bit more design work on this, taking on board Maddox10's advice about the shaft diameter. I have upped it to 20mm now, which hopefully will be ok (given I am running less than...
  10. 12mm thick hardox bends? Wowzer. What kind of...

    12mm thick hardox bends? Wowzer. What kind of kinetic energy was that running at?

    And I thought 15mm was overkill... Luckily I can thicken that without too much of a mass penalty.
  11. Wyvern - Featherweight spinner design and build thread

    Wyvern – New featherweight spinner build thread


    So I thought I would start a thread for this as I think my design is sufficiently progressed. I still have some significant design hurdles to...
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    Thanks for organising! Hope to have some kit to...

    Thanks for organising! Hope to have some kit to bring next time. Pleasure to meet you all.
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    Should be good to make this. Will be cool to see...

    Should be good to make this. Will be cool to see some people's creations!
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    Machine shop in North West/ North Wales

    Hi all

    I am in the process of designing my first FW, and I am trying to get an idea of what processes are available to make parts. I figure my design will be a lot more potent if I can make some...
  15. Nice! Should be around for then. Ahh so...

    Nice! Should be around for then.

    Ahh so further research is required on the current front. Need to make sure the torque will be sufficient to accelerate the spinner.
  16. Thanks guys If I run at 4s will I be able to...

    Thanks guys

    If I run at 4s will I be able to get the same wattage though? Taking P=VI at 14.8*57=843W and 1480 RPM.

    Another option is dig around for even lower kV rating on the motor I guess?
    ...
  17. Running drive and weapon system with different voltages

    Hi All

    In the process of scoping out a build for a featherweight. I have come across a conundrum in the electronics.

    I am running two 12v RS550 motors for my drivetrain (hacked from Argos...
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