I agree with marcros, some of these pieces of wood can be lethal. My wife is giving me a fretsaw for Christmas but have to wait for Father Christmas to deliver it ! I am concerned about the blower on the saw it might keep the work piece clear but the dust goes straight up in the air, I am going to try to rig up some suction in that area perhaps a tee off the main suction underneath. another warning is when cutting MDF, terrible stuff to inhale. I have spent most of my working life in a hospital so am very conscious of lung diseases etc. have been reading some threads about working in cold sheds and garages so perhaps a face mask might help to keep your nose warm as well as keeping the dust out of your lungs. that smiley is still waving at me, I'm really concerned that he might need help.