EX-30 weight 51 kg > uh is heavy and big but work is so comfortable
Upper arm tension > I'm must adjust after 6 days of work but still I can't make it good .
Dust chut > I make new from plywood . Old dont throw piece of wood , You know when make fretwork some piece jump off or get down and can block work.
Vibration > on 3/4 full speed saw get a lot of vibration , it too big to work . I think that is natural frequencies (?) http://www.excludedmiddle.com/earthquake.htm