Featherweight Discs

[ewan]

I have looked through many kinetic energy convertions and have come to the conclusion that speed (of the weapon) is the key to a sucessful featherweight spinner, as featherweights cannot spend to much of their weight, on a disc of much mass. What are the conditions of the possible 1500rpm spinner rule, as this would effect the weapon power of a featherweight spinner ALOT.
I have been pondering over many designs of featherweight, and a high speed disc seems the key to a successsful weapon, without buying a mag or anything . Please comment-

[robjones]

A very cheap option Ewan might be to look at the deal Argos are doing right now. Its an 18v portable hand held circular saw, and a battery drill thrown in for £29.99 (made by Challenge). In the saw youll have the motor and fittings for your own disk weapon. Its 3200rpm at 18v.
I bought two for £60. I get two 18v drill motors, two nicad packs, two chargers, one ready built disk weapon and a saw to keep for building it!!

BMW fan motors 12v 600w
on 24v they do 2400W thats near as damn it 3hp
there made by a sub contractor for wait for it

Lynch

[glen]

could you provide any more information on that fan motor craigh regarding performance and weight. also what is the shaft type and size?

i think ill have to look at one for a spinner. most fan motors ive found are 240w at 12v.

@ewan. yes you will get more power by making the spinner faster. BUT it will be more unstable and it will have a slower spin up. hence why most people have a good balance between the two.

Thankyou for your ideas. I had a look into the cordless circular saw, but instead I decided a more powerful 24v motor of sorts would do the job. If I could have some more information about that fan, then that would be great.
Im aiming for an 6-10 second spin-up time on a vertical spinner (so that you can push the opponent away while you are spinning up). This would release MAX energy into your opponent at whenever time you hit it.
Cheers, Ewan

[glen]

have a look at car fan motors. any type. also car heater motors are good but they usually have a thin shaft.

your bound to get at least a 240w at 12v motor and ive seen a 1hp at 12v motor. they have serious power and they often come with a flat plate straight out of the armature with a mounting point for 3x m6s.

they are also real durable. that should do the job for you

Ewan you really should be aiming for a 3 second or less spin up time
Example: say you take 6 secs to spin it takes most featehrs less than 3 secs to cross the arena
then u get flipped rammed or hit with another disc

Glen the motor is approx 110mm dia 70mm tall weights 1.5kg Ill get the specs later thats all I can remember

[ewan]

The bot is using the drill motors that I have used many times before, and they run at 14.4v instead of the nominal 9.6v, this leads to a 20mph speed, which it can get to within 50cm of floor space...
I could run away for about 12 secs at the start of a fight...
Cheers, Ewan

[maddox]

Forget it Ewan.. from the moment a disk gets up to some serious energy levels this robot becomes an unguided/nominaly guided projectile.

Now, as you think a 12kg machine, with a heavy disk on, eating power as wel, that you can escape a dedicated rambot with thesame amount of power invested in the drive as you in drive and weapon...Think again.

And as the power in feathers reaches nominal heavy values, the armour goes up equaly.
The first Hardox armoured feathers are not far away.

Or, every weapon has it time and place.But non are King of the Hill. After Hypnodisk I feared a Spinner dominated RW. But I did my small part, and now we see a Flipper Dominated gamefield in the Mentorn arena.
And Of course, I do not forget Razer as example. Unfortunatly nobody tied a Hydraulic powered weapon in a feather.

I thought Craig danbury did? I also thought i told you that at newark hehe

regards
Dave moulds
Team Turbine