[cyclestart]

Not a comprehensive list, please add

Fusion 360
Fully-featured CAD + CAM
Free for verified start-ups. Free version for hobby users with some features disabled.
Development status: current
Skill level: Advanced
The current 800 lb gorilla of free-to-use cad/cam
Windows and Mac

FreeCad
Fully-featured CAD + CAM
Free and open source.
Development status: current
Skill level: Advanced
Windows, Mac and Linux

BlenderCam
Cam add-on for Blender
Free and open source
Development status: current
Skill level: I haven't tried BlenderCam but advanced is pretty much guaranteed.
Windows, Mac and Linux

Dxf2Gcode
imports 2d drawings outputs 2+1/2d g-code
Free and open source
Development status: current
Skill level: Easy
Windows, Mac and Linux

Freemill
imports STL outputs 3d parallel path g-code. Does nothing else
Free to use but a salesperson may call
Development status: unknown but still available
Skill level: Easy
Windows

Scorchworks
Various tool path generators Engraving, depth maps, more
Free and open source
Development status: current (bug fixes and updates)
Skill level: Easy
Windows, Mac and Linux

[cyclestart]

An extensive list of Open Source CNC-related software posted on reddit a year ago.
Some have been forked under new names, some have been integrated into larger projects, some are inactive but being open source they may rise from the dead.

https://www.reddit.com/r/CNC/comment...mcnc_software/

[Muzzer]

Not a comprehensive list, please add

Fusion 360
Fully-featured CAD + CAM
Free for verified start-ups. Free version for hobby users with some features disabled.

In fact, for hobby users, it's fully enabled. The only "missing"(?) features are some of the optional CAM "extensions" which require credits - but few hobby users would ever be in a position to use.

[cyclestart]

In fact, for hobby users, it's fully enabled. The only "missing"(?) features are some of the optional CAM "extensions" which require credits - but few hobby users would ever be in a position to use.

If creating files in Fusion okay. If getting files from elsewhere (ex: grabcad) maybe less okay.
https://knowledge.autodesk.com/suppo...l#file-formats
note I haven't tested these file translations lately, just sharing a link.

[tina77]

quite difficult to make the right choice

[meister9]

2.5D CAM for Linux - Free and OpenSource, based on Python:
https://github.com/multigcs/viaconstructor

[Denis19]

Does anybody use the software ABViewer? They say that it enables G-code generation from CAD files and it is for CNC machines.