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hi i am 10 and i am building a featherweight (going too) and i was woundering
could i buy some cheep helicop speed controller,
would they work?
what weapon should i have a flipper or blade?
Where can i get metal from
i have £150 and i can get more by doing jobs
And shoud I use 18v drill or 14v or 12v :roll:
newbi lol
i cant really help in detail as im at the last stages of building my own robot.
but you should go with the drill motors from robochallenge, as well as the mounts and 100mm 'blue' wheels with nut inserts.
as for speed controllers i used the FR15 from electronize (think thats the model number, il check).
also i have been told flippers are hard to make unless you make a electric lifter, and a spinning disk will also not allow you to enter most events.
thx for the help :proud:
i will look at it but i think i will buy a cheap £10 drill (12v + battery)
:twisted:
the batteries that come with the drills are useless, they dont give out energy verry fast or last verry long. they are good to keep as spares in an event though.Quote:
Originally Posted by Thunder arrow
its up to you, im not sure if the motors from robochallenge come with the nuts that lock the gearbox (which you need), so if you buy the drills then you will need to buy the screws as well. there only £2 though.
EDIT: mental daemons (spent wright?), is selling electronize speed controllers in the for sale section, it might be worth seing if you want them as they are cheap.
Is it any good?Quote:
Originally Posted by elobire
I'm a newbie too, but anyway....
About the weapons, a flipper is far more effective, but much harder to make.
thx again, il look at it but i will proberly go with a pneumatic flipper :uhoh:
ask someone with experiance with them first, i remember lots of people saying they are hard to make.Quote:
Originally Posted by Thunder arrow
and yes the electronize speed controllers are excelent.
It's not so much that flippers are hard to make but more that it's very easy to injure or kill yourself with them.
You need to understand them fully before you go about livening them up. Read and educate yourself an probably got to an event and get someone to run through it with you but make sure you understand what you are doing.
Andy
dumb Q
how do u charge a receiver battery?
do u need a receiver battery
theo
its not a dumb question......
but with a charger - my main bettery charger i use to charge my battery packs with has a plug for a reciever battery to get charged built in, or you can just buy a reciever battery charger
and most speed controllers can power your reciever so you dont need one, but some people prefere to have their reciever running off its own battery, i no jamie- (drumroll) used to
thanks my speed controller came 2mins ago its a Sabertooth dual :mrgreen:
ah coolness :), The 25A one? i used to use those i've got 2 sat in their boxes not doing anything lol
i kept having problms with them used to have 3 but i blew one with little hitters help, then i started using toms scorpion which works well- tom ill give it you back eventually :P - im just gonna get scorpions from now on
wen i used the sabertooths i powered my reviever off it aswell, it just saves the effort of having to sort the reciever battery out
Flippers are pretty costly and very complicated. It's not really as simple as sticking a ram onto a hinged piece of metal, everything has to be thought out. Experience is a must have. That said, there's only one way to learn, right? :)
I think a good idea is to build a simple first robot, leaving enough space and weight to add a flipper later on, going for a pneumatic flipper robot first time is quite ambitious, and you might decide half way through the build you aren't happy or you no longer want a flipper, meaning you will have spent a lot more money than was necesarry.
Another thing is, a well angled scoop/ramp/wedge can flip other robots over if your robot has the speed and power to push them or hit them hard enough, or another option could be an electric linear actuator (I've heard they're pretty cheap, I might be very wrong though), they aren't very fast or powerful for that matter, but I think I also heard somewhere they can lift 30kgs? If that's the case (again, don't take my word for it) then a 13 or so kg robot shouldn't be a problem (taking into account the power lost in a hinge mechanism and the lengh of the lifting arm etc).
I'm just starting too tbh, all I just wrote might well be cobblers, so have someone more experienced than I tell you what's what, I'm just going by what my common sense is telling me, lol. :lol:
most linear actuators shortened to linacs are rated in newtons they will have a different value for push and pull
you can little ones or bigger ones like mine which can push about 1000kg at the end but in my crusher due to pivot points and distances it works out to be about 700kg on the tip
ebay is good for them and cheap
alex
thx again, il look at it but i will proberly go with a pneumatic flipper :uhoh:
pneumatic flippers cost alot more than most robots, even if you get most parts free form other robot builders you still could not aford it. It is also very hard to build a pneumatic flipper as hard time found out, I would go with a rambot or pusher with a wedge then add an eletric liffter later.
ps some rambots can still cost over £300 or more.
thx again but where can i get metal sheets from in norfolk or on the internet :?