![]() ![]() We gave Mach a quick try but did not get good results. A prior owner loaded Windows XP on the computer along with Mach3. The computer had a dual boot Windows XP and Ubuntu operating system with LinuxCNC running the mill. ![]() When we purchased the machine the original EZTROL system was abandoned in favor of a desktop computer using the printer port and a cable to the PMDX-110. We removed the linearity.dat file from about four places in the Mach3. The worksheet from the PMDX website and a note on a similar thread really helped. The maximum speed should be 4000 rpm and we are producing about 3500 or less. ![]() The actual and commanded speed (using an s command in a program or in the MDI tab) of the spindle is different. An m3 or m4 code both result in forward rotation of the spindle. The central problem is controlling the spindle. The limit switches and homing are working as expected. The X,Y and Z axes seem to be working fine after using the auto setup found in Mach3. I think we are close but just do not have the technical knowledge to get the project finished. I am having a time trying to learn all the technical aspects of the electronics and what the parameters should be in the Mach3 software. Briefly, the spindle does not operate correctly and we seek advice from someone with more expertise. We would very much appreciate your assistance in getting our Smithy 1240 running with Mach3. ![]()
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