If you want to earn more achievements, do not save your game after cheating.
If you use the same cheat 50 times you get the Pathological Cheater Achievement.
Certain cheats disable the ability to attain any further achievements once the Joker Badge has been earned. To prevent the disabling of achievements, don't save the game after using cheats, or use a mod.
GCAM also imports RS274X (Gerber) and Excellon drill files for gerber to g-code pcb milling conversion used in circuit board prototyping.
Once a design is complete one can export the corresponding G-Code to the appropriate CNC driver of choice such as Turbo CNC for DOS or EMC for Linux.