Think its the fastest spinning weapon on a featherweight in the UK so far now .. if anyone knows the weight/OD/RPM Of touro feather in the US id like to know... as thats the kinda effect i was aiming for.
Really good! Congrats!

Actually, Touro Feather is Brazilian, Rio de Janeiro, but we do compete on the US (Robogames and Combots) besides Brazilian events - which by the way you are all invited to attend!

So about the numbers. The latest Touro Feather spins its 4.3kg drum at 15600 (measured, 16K theoretically). Since 2009 the drum have a single S7 tool steel tooth - about 25mm x 25mm x 190mm - counter balanced by a Tungsten bar. The tooth is profiled like an hourglass and fits on a similar shaped channel on the drum (306 stainless steel), leaving about 12mm out, then everything is welded.

There is a relation between the speed of the robot, rotational speed of the weapon, number of teeth and bite / grinding. It is on the RioBotz Combat Robot Tutorial somewhere... Any way, in 2008 it had two teeth at >20K RPM and lots of grinding.

BTW, this is one of the best topics in all of the forums I participate, congratulations!


Cheers,
Eduardo