The bag is not necessary to run the machine. It is merely a muffler to help dampen the noise from the cut motor. If you would prefer to have a bag without a hole, you can always call our sales team and purchase one.
If you wish to save a little money, some of our customers have actually put a sock over the bag to create their own "Bag". I'm not saying to do this, its just what others have done in the past.
Also, I am not sure why the machine keeps blowing it off, but removing it and then placing it on again will wear down the plastic pieces, resulting in a loss of material for the parts to grip on.
Sonuva Nutcracker!
Alex
Carvewright