Our tool sponsor - Teng Tools are supplying us with an laser tachometer - simply stick a white spot at the object, spin it up, and point the tachometer at it.

Were planning to bring it along to some events with us this year to give people the opportunity to measure just what their spinner does.

I think people will be surprised just how much energy (and rpm) is lost due to wind resistance alone - espcially bar spinners !

Ed
http://www.stormrobot.comhttp://www.stormrobot.com