I was machining some oval shaped pieces and noticed the axis movements are jerky and create little straight lines, like the machine is stopping for a moment at each direction change. The stepping movement matches the monitor display when each line of code changes. This is a Fadal 4020 running off a shop link USB drive. I changed baud rate to 38400 with no noticed affect. Now that I am paying attention the problem is with all direction changes not just these ovals. Is there something in my programing causing this affect? Also is there a way to start in the middle of a program on the shop link USB drive? Thanks for any input... Terrible Terry