Hi folks,
I’m fed up using lousy free software to generate G-Codes.
And I have a one year subscription for the Draftsight 2D CAD Software. It includes a 2D G-Code generator and I decided to lear how to use it.
The generator asks for a “Preamble” and a “Postscript line”.
Can someone tell me how these are for the Maslow???
G90 (absolute coordinates ) **normally, exceptions exist
G20 for imperial and G21 for metric **it can not convert your drawing, it’s defined by your CAD/CAM
G0 Z5 for a safety height in metric for 5mm and G0 Z ~0.19685 for imperial, is good to have just in case the programs do not include it or you have not set it
My bare minimum in the header of a g-code
G0 Z0.5 would be safer if we’re in imperial mode 
Is more than enogh for me if I have a sheet that is not to wavy. 12.7mm is far to much for me.
As usual, you’re right 
I only read as far as Z5 and remembered crashing my router’s lead screw. I should slow down… 
No that was simple! Thanks…
Now…