ATOMSTACK M4 Manual page 17

Part 15:Picture Processing (Ordinary Bitmap)
Adjust the picture to a proper size;
Check "Grayscale" and"Fixed DPI" (enter parameter 300 for X and Y) and "Outlets" in the Picture Settings window;
Check "Two-way scanning" in the"Mark Configs" window and enter 0.4 in "Dotting time";
Carving parameter setting. Set "speed(mm/s)" as 500 and"power(%)" as 100.
Notes: Carving on primary color metal, paint and baking paint, oxidized paint surface, electroplating metal, plastic, leather and
other paint materials provide the best effects.