Got it and it solved my speed problems. However when there are multiple motion commands on one line of GCode it tends to screw up. Judging from the sound it tries to run the x axis very very fast and of course it just stalls and then everything is off from then on. The X axis is on its own power supply. If I run the same file with every motion control on a separate line all is OK. I'm going to try to write a VB6 proggie that will accomplish this but if anyone knows of such a program I'd appreciate it.