it wouldnt do any harm saying all betlees had to have a remeovable link, that would make the rules complicated
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it wouldnt do any harm saying all betlees had to have a remeovable link, that would make the rules complicated
Yeh, if you don't have a soldering iron, you can buy plugs fron an rc shop that require no soldering at all, and it can be easily mounted with a little glue, I can't see a problem.
wait what?
how does a removable link prevent a robot falling off a table
It prevents them driving off a table
why would you be driving it on a table?
Actually, from the stories I've heard, a fire protection suit may be beneficial! :shock:Quote:
Originally Posted by jonny
Most active-weaponed featherweights do have to have a locking bar fitted, even if the weapon system isn't pneumatic. Spinners require a locking bar, axes require a locking bar and, in my mind, weapons with electrical actuators should have locking bars. (I remember hearing/reading that for electrical actuators, the link acts as a locking bar so a physical one isn't required, but I've had claws and lifting forks move when power is applied so, to me, they are necessary)Quote:
to require a link and powerlight is like requiring all featherweights to have a locking bar even if they have to (I'm assuming this is meant to read 'no') pneumatic system
I don't no if this sounds stupid but if your robot doesn't have a link can't you just turn of the controller and it will stop :?: :shock:
no you need a link, AND for it to failsafe.
ok bad example, replace locking bar with dump valve lol.
Not a silly question but it's about safety. Robots have a lot of dangerous stuff in them and we want them to be safe. We want all the batteries, spinny things and flippy things to be dead whenever we're messing with them so we don't hurt ourselves. Switches can fail, so can failsafes on the receiver, speed controllers can blow and go into full power and batteries can catch fire spontaneously. If we have a removable link we take out a bit of cable which means that unless we have the most unlucky failure will mean that we can guarentee the robot is dead.Quote:
Originally Posted by Pugster2002
Andy
I guess I can't use riot then :cry:
I reckon people may make an exception for Riot. It's not too dangerous in itself and i'd be happy with an rc car base. Jonno runs them on occasions with the feathers at roaming robot events so I don't think anyone will object too much. Just don't put Riot up against 180!!Quote:
Originally Posted by Pugster2002
is there actually an official set of rules for BW, or have they just adopted the FW safety rules etc?
Quote:
Originally Posted by mattsdragons
I seem to recall it was the featherweight rules which were generally adopted. Personally I reckon for anything without a spinner/pneumatic flipper at this level failsafes are a bit superfluous.
If a beetleweight with a servo lifter goes out of control, worst case you can time it well and hit it with a hammer and it'll stop :proud:
I have a set of wheels that can move under their own power now!
http://i609.photobucket.com/albums/t.../Photo0048.jpg
It's WIP name is Mr. Me and it has 2 1000rpm motors off of ebay and 73mm Banebot wheels.
A few questions:
1) This bot shall be a servo powered lifter. Would using a LiPo battery be more hassle then it's worth? What would you recommend? The drill battery is only there to get it moving.
2) What would be the easiest way to make a removeable link for a BW if needed? In my mind it would be a finicky thing that would be a pain to put in/take out without it being big enough to be a target.
Just use deans connectors, and you could just use a Nimh battery, which would be eaiser/safer/more reliabile than the lipo, which you could leave in the robot while your charging it. I think lipos are to much work for there benifit, yes they are used all thr time in ants, but they need the benfit of it, where as, with the larger robot + untested lipos (cos no one really knows what ones to use for beetles) could be potentialy dangerous, i just would stick with something safer for now, And it's looking good other than that! I need to get mine working....
I'm with you on that one
lipos are more suited for ants (not mine :sad:) though you will need more nimhs cos they take like a day (seriously) to charge
I got a cheap beetleweight that cost nothing and there are pictures on page 4 of hazard 2s build diary currently only have motors and a 9v battery and want the cheapest speed controllers I can use motors pretty powerful but I don't know what amp I'm gonna say 20.just to be on the safe side
help appreciated
archie
12a sabertooth, about 50 quid.
or banebots.
I have a 12a sabertooth and I personally found it very easy to set up and get something moving with it.
Also thanks for the advice, i'll go source some suitable nimhs now. I don't really want my first robot to blow up!
Just dug my beetleweight out, Going to have to get it finished. Prob get it all up and running hopefully for the little robochallenge event coming up.
2x12 Sabertooth for sale here:
viewtopic.php?f=166&t=5065
From my BW, very light and feature-ful (built in mixing, li-po, over current and thermal protection), easy mounting options, small and good current rating.
Includes a 2nd Sabertooth (next model up) for spares and upgrades.
Sounds like a plan, might just have to do the same and we can maybe get some battles going at last :)Quote:
Originally Posted by xtreme
Ye its about time there was a beetle fight.
If things get rolling in the BW world again (other competitors, an arena) then I'll get Spinza finished.
I was hoping MMM would be running BW, but seems they have AW, RW and FWs.
It would also appear that Robogames (USA) no longer run FWs but do BWs.....
are you planning on going to the robochallenge thing thats coming up?
Potentially, all depends when it is, travels costs, whether I have a working robot (BW included) at the time.
New beetleweight being built at the same time as the new cobalt,
Name : Carbide
Style : Mini Cobalt
Weapon : Crusher
Drive : 4wd using timing pulleys
Power : Hyperion lipo
and also selfrighter
mini cobalt? that will be awsome, how are you planning on making crusher?
Looks like its going to be a ball screw with the nut inside the jaw
Didn't fancy making a hydraulic BW then?
No point looking into it at this weightclass
pffft, give up too easily.
those are some nice wheels.
Woops, while doing some testing for rocky, I nealy set a lipo on fire! Turns out that the giant cod stuff isn't the super high quality stuff it's said to be :P shame though, that's another £20 down the drain!
Quick test video of a Beetle pneumatic setup.
http://www.youtube.com/watch?v=8J8Se_bUvVA
Nice! Be good to see how that goes!
Is that running of compressed air? What pressures it running at?
not 100% sure on the pressure there.
The cartridges hold liquid co2 so in theroy it's full power system in vid it's on last bit of cartridge going to test exact pressure later