There is no suction so the engraving shavings are not being vacuumed off the materials or the engraving machine surface. I've empties the little bag, shortened the connecting hose hoping that would give more suction, cleaned out the build up in the hose. I'm getting no suction what so ever. I leave at Noon on Thursday and will be back Monday morning. It' under the engraving table, in case you don't know where it is located. The foot pedal to turn it off and on is right beside it. Thank you, John G