Do Beetleweight follow these rules?

Rotational weapons exceeding any TWO of the three limits below must be submitted for review and be pre-approved by the event organiser.
11.2.1 Weight
The spinning element is more than 20% of the robots total weight. (This includes any directly coupled motor components rotating on the same axis).
11.2.2 Speed
The spinning element spins above 500 RPM.
11.2.3 Size
The spinning element is greater than 500mm in diameter.

My beetleweight will have a spinning bar weigh 340g and spins at about 5000 rpm. Will it be allowed?

Yep thats pretty average for a beetle weapon. You're fine. Remember that rule is exceeding 2 of those, so if you meet all 3 then youll need aproval.

Those rules are written more for arenas that aren't designed to take full combat spinners. If a 'spinning' weapon doesn't exceed two of those three criteria it can probably be viewed as a fast electric lifter/hitter than a spinner, though the final call always rests with the EO.

The arenas that beetleweights fight in currently in the UK are all designed for full combat, so there are no restrictions (yet!) on the speed and weight of spinning weapons.

And not quite Harry. Exceeding two of the specified figures rather than the actual rules themselves would require approval. So, for example, a spinning mass bigger than 500mm and going faster than 500RPM would need approval even if it weighed less than 20% of the robot's total weight :)

I get the feeling that if you comply with this you limit the energy in the blade.

Quote:

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Originally Posted by daveimi

I get the feeling that if you comply with this you limit the energy in the blade.

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In effect yes, this is to try and make sure that machine don't exceed safe limits for the arenas. it is possible to shatter polycarbonate if you hit it hard enough and given some of the chunks that can be ripped off these days by the best spinners that rule combination is in place to help prevent that.

So that means there is no regulation about beetleweight spinning weapon, and I should try to be under those rules in the 'Build Rules' ?

Some of the disks at the last beetle champs I know for a fact were in the region of half a kilo and spinning at a daft rpm and no one said anything. My beetle never even got tech checked at any of the beetle events last year so don't worry about it. If you're still worried bring your bar down to 300g you'll comply with two of the rules and have nothing to worry about.

I'll say it again; these rules are only for Class 3 arenas or lower. As you mentioned Dave, the rules limit the energy in the weapon and prevent shrapnel and debris from exiting the arena, as a Class 3 arena generally has a net/fabric roof and insufficient thicknesses of polycarb for full spinning weapons.

Both beetleweight arenas regularly used (Kinematic Events and David Weston's) are protected entirely by polycarb of an appropriate thickness, allowing beetleweight spinners to run without the restrictions required for Class 3 or lower arenas.

Ok, I understand, thank you.

I think they do have to be pre-approved by the EOs basically as a clause that says any unsafe spinners can be refused entry if they're not safe in the arena. That very rarely happens however, the beetleweight arenas can contain anything you'd be able to reasonably fit within 1.5kg. Most if not all spinners are just approved because they're safe in the arena, but like Jamie says it definitely applies to the lower classified arenas more than the class 1 and 2s.