Topics

1

General Mach Discussion / IMP?

« on: February 11, 2010, 11:26:33 PM »

Hello, I have recently joined this board, and am all ears! I just finished (i hope) building my first desktop CNC machine. It is an old Light Machines Sherline based unit, with new steppers, and home built controller. I have a freshly re-imaged PC that is dedicated for this use. I am pretty excited to get cutting, but I want to make sure I do everything right at first. So far, I have the machine up and running, I can jog the axis' without stalling etc. I have my step increments worked out, so that when I tell Mach to move 1 inch, it moves 1 inch etc. However, I have run into something I don't understand. I assume that if I have the software set at 10 IPM, it will take a full 60 seconds to move 10 inches? I currently have my X and Y axis set at 10 IPM, but it only takes 20 seconds to move the nearly 10 inches of travel in my X axis (I have yet to check my y axis but I assume it is the same). That would seem to me to be about 30 IMP. What am I missing? Thanks in advance for the replies, and I am sure there will be many more silly questions to come. -Jeff