Hi guys
I'm a total newbie and i would like to know if i could fit a pneumatic flipper robot with spikes on the back into feather weight
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Hi guys
I'm a total newbie and i would like to know if i could fit a pneumatic flipper robot with spikes on the back into feather weight
Can't see why not, my featherweight in the making's a pneumatic flipper with spikes at the front :)
Ok thanks. i just don't want to build it and find it's too heavy
Sorry, more noob questions.
What is a speed controller?
Why do i need it?
Where can i get one?
A speed controller is an electronic unit which basically switches your motors on/off/reverse and controls how fast they run depending on inputs from your radio receiver and therefore from your controller. You need it because your robot would just sit there without it. You can get one (you'll need two - one for each side of your robot - or a dual channel one) from all kinds of robot suppliers - electronize are okay as a basic cheap kind of thing. else you want to look at a scorpion xxl or sabertooth. Those are the main types used by UK feathers.Quote:
Originally Posted by Lord Bob
Electronize - http://www.electronize.co.uk - or i am selling two. You'll want two 15 amp ones for two drills (FR15HVRs), or two 30 amp (FR30HXs) for two drills a side for four wheel drive.
Sabertooth (you'll want the 2x25 for 2 drills, won't really like anything more than that) - http://www.technobotsonline.com
Scorpion - http://www.robotpower.com/catalog/ - have to order them from the US.
Cool, thanks a lot
Yes it's me again with more noob questions.
Do spikes on the back really do anything, or would i be better using something else, if so, what?
Spikes with 13.6kg behind them won't do more than scratch anything stronger than a Dave Lawrie creation (and probably not even then) - your best bet is to use the weight to improve your flipper, structure, drive, or armour.
Slightly harsh on dave lawrie there Nick, His latest one was quite sturdy.
Spikes are only really much good if you can get something resting on them. On Satanix, I tend to ram people into walls and they go over the robot and onto the spikes, so I can ram them again and hopefully dent/bend the base panel. I have caused one noticeable bit of damage; I put a hole into Pug's battery pack at Edinburgh when it was hanging loose from the robot.
Right, i will leave out the spikes and maybe make a really good flipper
Lol, i have yet more noob questions
What type controller should i get?
2.4ghz
40mhz digital
they are the only ones i can remember
2.4ghz is more reliable and from next year 40mhz won't be a permitted frequency for featherweights. The price of 2.4 has come right down now so they are a much better prospect.
cool, i will get one of those, and once again, thanks for the help
Do any of you guys know any weapons that are reasonably cheap to make and are very good because A) i have just lost a sizeable chunk out of my budget and B) flippers are boring, everyone has them
A wedge is pretty effective but if you want something active a drill/windscreen wiper motor powered lifter might be the way to go.
cool, thanks a lot
Are buzzsaws and spinning discs any good?
u could build 1 but i wouldn't because most contests will not let u fight :cry:
yes you can only fight 2 times a year with a spinner as most arenas can't hold them.
why not?
As in, the arenas aren't strong enough to take the hits of powerful spinners, if it's not a spinner you can enter it everywhere.
oh dear......
are spinning drums like tornado and drumroll have allowed?
drum spinners have the same rules as all the other spinning weapons, check out the fra rules for more info
0 thats a shame
I have just had an idea for a weapon!!!!
it's sort of like a thwackbot, but just the hammer moves, not the whole robot. It would be pulled into position by a windscreen wiper motor and fired by a big spring. Would this work?
Also, how much might that weapon cost to make if it will work?
yes, 145 gbp.
It sounds a bit like a sideways axe, or if it's overhead then you've just described an axe to be honest.
There's a reason people who design axe robots have the axe come down from above - generally people's top armour is weaker, and more importantly you have the ground to support their robot allowing force to be effectively transferred. If you hit them sideways you will just knock both robots apart and not be able to follow up your attack, and a spring powered horizontal attack is unlikely to have any effect against any kind of side armour.
Especially when people often design to face horizontal spinners which deliver impacts orders of magnitude larger.
Oh, and I wouldn't recommend doing a motor + spring mechanism as designing something which will store a large amount of energy in a spring and release it effectively on demand while not breaking itself is more challenging and requiring of machine tools and a fair bit of engineering and materials knowledge than doing the same job with pneumatics to be honest.
Thanks a lot for all your help
I have decided on a design and will make a build diary once i have bought a few pieces
Oh dear, I'm back with questions yet again......
What sort of size does it need to be? If there aren't any rules about that what sizes are all your robots?
As long as it can fit through the door it should be fine but remember that the bigger you make your robot, the greater the area of armour you will need, hence it will need to be thinner and not as strong.
i think 2mx2m was the limit? should be no probs there :P
2x2 metres is massive, thanks for the help
as a rough guide most feathers could approximate to 300mm by 300mm. Obviously there are variations on this but it gives you a rough idea of the size of the machines
Thanks, I'll have to make sure i can fit that inside my jaw......