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  1. Replies
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    Yeah it has a reasonable amount of speed behind...

    Yeah it has a reasonable amount of speed behind it, maybe not as nippy as a standard drill motor setup but it's more controllable.

    Downside is that I finished it then stuck it on the scales, only...
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    A crusher as well :) Just a used off-the-shelf...

    A crusher as well :)
    Just a used off-the-shelf linac from a mobility company but it's rated for about 300kg at 12V and I'll be running it on 5S, so hopefully will be able to give things a little...
  3. I generally just use your average 'knobbly'...

    I generally just use your average 'knobbly' mountain bike tyre, seems to work okay. Others may have used slick tyres etc, but not sure how they found them If you're not fussed about quality or don't...
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    Love the in-depth write-ups, it's a great little...

    Love the in-depth write-ups, it's a great little machine and enjoying watching it develop. Quite often you have to fight between team members because everyone wants to drive the robot; I love that...
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    Speak to the EO about it. Locking bars on slow...

    Speak to the EO about it. Locking bars on slow moving electric actuator weapons are a very grey area; some argue that they're required, others argue that the link is effectively the locking bar as...
  6. Looks good, and big! What transmitter do you...

    Looks good, and big! What transmitter do you have? Most have a dual rates function which you can set to a lower percentage of speed, so maybe 50% on the aileron channel for turning. A lot of dual...
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    The rust on the dowel nuts won't have any effect...

    The rust on the dowel nuts won't have any effect on their strength, they'll be absolutely fine to keep using. If you don't want them looking rusty, just pop them in a tub/glass/bowl, fill with Coke...
  8. Flap discs are my favourite angle grinder...

    Flap discs are my favourite angle grinder accessory, don't know how I lived without them previously :p

    If you don't already wear a dust mask when using one, I'd advise on one. Used a flap disc to...
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    Ahh yeah, 200N is only about 20kg so it's more a...

    Ahh yeah, 200N is only about 20kg so it's more a lack of power that'll be stopping it. The ones I've had in those situations have been 75kg and above, and that's when things can start to get unhappy...
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    Unless I'm missing something, there's no stopping...

    Unless I'm missing something, there's no stopping mechanism in the actuators apart from the limit switches at the end. So if the actuator is not at the end of its travel and power is still applied,...
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    Well that was a really enjoyable read. I'm not on...

    Well that was a really enjoyable read. I'm not on here often much anymore but glad I had a look-in today.

    Great job on getting your first bot together so quickly and as Ocracoke said, looking very...
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    Is your battery charged? Sounds like voltage...

    Is your battery charged? Sounds like voltage sag/low voltage.
  13. Indeed it is, if I'd just done a little research...

    Indeed it is, if I'd just done a little research I'd have realised that Donnington Grove is the street the Gatehouse pub is on. My bad :roll:
  14. The event page on FB has had the venue changed...

    The event page on FB has had the venue changed from the Gatehouse to Donnington Grove Hungry Horse, is that still the case?
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    If I remember rightly, tethers are more for Grade...

    If I remember rightly, tethers are more for Grade 3 arenas and lower (aka non-spinner) so the tether is to prevent the axe head, or part of the shaft, flying away if it breaks off and potentially...
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    I was going to suggest the Vex29 BB controllers...

    I was going to suggest the Vex29 BB controllers at ~£8 but they seem to be out of stock and will be for a while. A lot of beetleweights use 10A reprogrammed Botbitz controllers. Used to be available...
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    Is the servo plugged straight into the NanoTwo?...

    Is the servo plugged straight into the NanoTwo? I'm not fully up to speed with the NanoTwo specs, but if your servo is taking voltage from the battery through the NanoTwo BEC, it will be drawing too...
  18. Thread: Turbine

    by RogueTwoRobots
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    Their heavyweight? If so:...

    Their heavyweight? If so: https://www.google.co.uk/search?q=turbulence+robot&source=lnms&tbm=isch&sa=X&ved=0ahUKEwib-pLNtLfcAhXKB8AKHVLgAcgQ_AUICygC&biw=1366&bih=645
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    Hi Adam, it was a bit of luck to be honest. Clive...

    Hi Adam, it was a bit of luck to be honest. Clive Brown from Team Toon worked at a company that was located next to the bus stop refurb shop and had obtained some polycarb from them previously. When...
  20. This is how I used to modify servos for 360°...

    This is how I used to modify servos for 360° rotation too. Take the output gear off, cut the tab and bore out the underside with a drill to remove the slot that goes over the potentiometer, turn the...
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    It varies massively depending on what grade you...

    It varies massively depending on what grade you want to make it, mainly the cost in polycarb. No idea how much the Robo Challenge arena cost but definitely a five figure sum I'd imagine. Size-wise...
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    Is the flanged hub aluminium? If so, you could...

    Is the flanged hub aluminium? If so, you could see if someone would make you one from steel (if you were able to do a basic drawing) then secure it with a couple of decent spot welds to the shaft.
    ...
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    For what it's worth, featherweights at...

    For what it's worth, featherweights at heavyweight events aren't really weighed. There's a good deal of leeway as the meleés are just for fun so no-one is going to be nitpicking if it's a few grams...
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    The main issues I see are the castors and the...

    The main issues I see are the castors and the wheels. The wheels are very large, close together and right at the rear of the robot. The robot is also quite long and thin. When large wheels are as...
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    Sorry, just saw your edit. The boss is the...

    Sorry, just saw your edit.

    The boss is the protruding cylindrical part that comes on a lot of sprockets. It's a good wall thickness on the 40T sprocket which made drilling and tapping for grub...
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