Thanks Roger123D for the reply.
I have progressed a little further. The gcode spits out a high value for the Z axis when it rapids from park to start position. The line is noted below:
"N25 G1 Z5 F5000 ; lift nozzle"
The value is F5000 which I take it as 5000 mm/min. I know this now to be way to fast. I believe 200 to 300 mm/min would be typical? Any comments on this would be good.
Past there other G code lines for Z movement are F7800? Where are these speeds coming from?
I looked at the original Marlin Firmwware file that would have been uploaded and I can't see anything abnormal for speed. The value i saw was 3, and the steps/rev were something like 2560.
The Repetier host is from 2013 as is the slicer3r.
Is there a method of actually looking at the eeprom settings to see what is actually loaded for Z speeds?
Thanks