The only time i ever get an error with sled not keeping up with expected position is when the doing pockets. I have noticed when the path comes to a sharp point and reverses path it never reaches the points. I have slowed the path down to 5 inches/sec but still get the error. Any suggestions?
What operating system are you in? What is the make and model of the PC being used. Can you post an example Gcode file? What version of firmware and Ground Control are you on? Can you send a picture of you Maslow CNC Setup? How deep are the pockets, what bit are you cutting with?