My "A" machine has started air carving for the first five or 6 passes then it finally hits the board and completes the pattern. I know I could compensate for the difference in the depth of the pattern and carve regions but the centerline function just verily cuts into the board (using 60* bit). The bit hits the swing plate as it should...you can see the swing plate dip a little as it touches. I just did maintenance on the machine and all bearings seem to be in good working order. No sawdust in any of the motors. The machine might have made one or two passes above the board before maintenance but it is really off now.
I know I've read of things to check when machine air carvings but for the life of me can't seem to find them today. Hope there is an easy solution as the machine has been down a month waiting for brushes and I just got it going again. Sharon