How to visualize G-code output?

[MarkU]

Hi, so I am absolutely new at this, just installed LazyCAM and loaded a DXF, and I can see I have some learning to do. Can you tell me if there is software out there (ideally freely available) that will take the G-code output from LazyCAM and tell me what it will make (once I tell it e.g. cutter diameter etc)?

I expect I will do a lot of trial-and-error, and I would rather learn that my output is wrong by having an odd looking visualization show up, rather than having to fire up my mill and munch up a perfectly good piece of plastic / aluminum.

Thanks!

Mark

[Al_The_Man]

There is CncSimulator The free professional simulator for CNC code. ISO FANUC HEIDENHAIN simulator.
Al.