Although we have had some good advice from Hood we are stilll baffled. We are cutting a part from 1/4" Lexan using 1/8" bit on both machines. Feedrate on the router is at 65 and on milll at 6 and spindlle speed is 24,500 and 3500 respectively. Both parts are coming out nice but they do not match. We have done extensive testing on the router and feel that we are okay with basic motor tuning, machine setup and so on making us think we have something wrong in the MACH3 setup but can't find anything with our limited experience. We are using MACH3 on a mill, router and lathe and until now have been able to get what we want.
The router is cutting this 7.5" X 3.75" (approx) part about 1 tool width smaller than the mill cuts it. We are using the exact same Gcode on both machines witht he only difference being feedrate. Circles on the part cut very well. As the cut proceeds along the part the error seems to increase but this is difficult to track as the code has the cutter moving around the part quite a bit.
Any suggestions would be appreiated.
Paul and Ben
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