Hi, I have a cam contour,but I don't know how to draw it with mastercam.Below is data Base circle is diameter 100.0 mm 0-90 degree Dwell 90-140 degree Modified trapezoid (-4mm) 140-310 degree Dwell 310-360 degree Modified trapezoid (4mm) Thank you! Tony

I put the file (4D.mc9) to ftp (All_NC_programs4d.mc9).This is the program that did work.Thank you for your helping!

I put the file (4D.nc) to ftp (All_NC_programs4d.nc).This is the program that did work.Thank you for your helping!

This is the program that did work.Thank you for your helping! O0001 G21 G50 S3000 N1 T0101 M42 G96 S100 M03 G99 G00 X63.984 Z-.01 M08 G03 X58.597 Z-.592 R151.056 X53.06 Z-1.137 R153.135 X47.867 Z-1.599 R151.018 X42.824 Z-2.004 R149.121 X37.257 Z-2.399 R148.317 X31.589 Z-2.747 R146.842 X26.329 Z-3.019 R146.246 X20.888 Z-3.25 R145.187 X14.893 Z-3.445 R144.798 X10.01 Z-3.557 R144.15 X4.047 Z-3.638 R143.803 X-.8 Z-3.659 R144.21 G40 G00 X250. Z250. T0100 M09 M30

We used another software to machine it.The result is good.We used same condition.(same tool,machine).We guessed "Is mastercam kernel not precision?"

We have a part .There are 12 radius matching one big radius. We used mastercam lathe to make nc and machined it.But we found there are some radius didn't match well.Did we miss anything ?Could any method solve this problem?Thanks!Under is nc code. O0000 N1 G50S5000M03 G0T0303 G97S2513M03 G0X69.668Z1.288M8 G50S3600 G96S550 Z2. G1Z0.F.05 X64.071 X63.984Z-.01 G3X58.65Z-.586R151.056 X53.219Z-1.122R153.135 X47.808Z-1.604R151.017 X42.414Z-2.035R149.121 X37.005Z-2.416R148.317 X31.61Z-2.745R146.842 X26.203Z-3.025R146.246 X20.807Z-3.253R145.187 X15.402Z-3.43R144.797 X10.003Z-3.557R144.15 X4.606Z-3.633R143.803 X-.8Z-3.659R144.21 G1X-4.8 G0Z1.288 X66.659 M9 G0X250.Z250. T0300 M05 M30 %