Good day all

I have a VMC fitted with Delta Dynapath 20M.I have a problem with machine loosing postion in G00 command.If i program a line "G00 X0 Y0 " and hit start in mode 3, machine will rapid from home to "X0 Y0" then pass its program position in sort of a creep motion until it hits its soft limits. This fault only occurred after i had repaired the aux board,and/or re tuned the axis lag.I am currently dripping programs to machine with bobcad cam forcing "G00" code to run as "G01F18000".
Any help will be greatly appreciated.

Also i would like to add that by replacing old rs232 memory chips and oscillating crystals has made the control process information much faster than before,almost to highspeed machining.I would be glad to share information about replacement chips if anyone is interested.