While test cutting some Baltic birch plywood for my sculptures recently, twice the router has gone off course resulting in some loud screeching and burning of the wood and ruining the job. I’m wondering if my feed rate is too high and or getting too much bit deflection Here;s the technical info: Newly assembled OOZnest 1500x1500 OX CNC Dewalt 611 1.25 hp router set at minimum 16,000 RPM Baltic Birch with a plastic laminate on the face side for a total thickness of 0.712 inches. Routing from the back side (plastic laminate face down). ¼” carbide compression bit with approx ¾” to 1” stick-out Feed rate 290 ipm (derived from trial version of G-Wizard) Software: Vectric Cut2D Pro with following parameters: Plunge rate 30 ipm 6 passes at 0.1187” at a time Lead in @ 45 degrees, 0.1” length with lead out of same length, overcut distance 0.1” Checkmarked: Ramps smooth Checkmarked: Ramp on lead in Order selection: L to R, Bottom to Top, Grid, shortest Checkmarked: sharp external corners Nesting setup: Tool diameter 0.25” Tool clearance 0.50 Border Gap: 1.0 Rotation step angle Allowance offset: 0.02 Final pass 0.00 The pieces being cut are very curvy (Bezier) . Both times that the diversion occurred, it was one of the deeper cuts of the six cuts. No other adjacent nested pieces were cut before the diversion and no objects were present to hinder the routers path. On one piece, I was able to see that there was a slight diversion at several higher steps but the router continued on course until the lower cuts and then it went off track. The other piece went off track on the deeper cut without any previous diversion at the higher level cuts. Any suggestions would be greatly appreciated.