[rcazwillis]

How do different layers of a CAD drawing impact the G code? Does layer 0 get cut first? Does it all get grouped together? How do you use the layers to get the best end result?

I am viewing this question from the stand point of a 3 axis, hobby machine.

I am new, but I am learning.

[ger21]

It depends on what you are using to create the g-code. Some converters will let you use the layers to order the cutting. Usually you have to pick the order you want the layers to cut in, it's not based on the layer name or number.

[cncadmin]

If you use a program like SheetCam you can use the layer to remind you of the operation and also to separate the cutting processes, ie pocketing, contouring etc.

[dmealer]

If you use Mastercam, layers do not afect G code output. It is simply a way to organize a complicated program. You can draw some features on layer one, make your tool paths, then turn the layer of and continue drafting on a new layer on a fresh uncluttered screen. Wheather you have the layer on or off does not matter to the post processor. Nor does the order in which you draw.