ObjectiveI'm trying to figure out if and how to generate 4 and 5 axis G-Code in Fusion 360 (Hobbyist version = ultimate features) to run in MACH3 on my modified YOOCNC 6040 machine.
Because even the new "5 axis operations" in Fusion 360 don't work for organic shapes without contours. Any I only ever need/want 4 and 5 axis milling for organic shapes to get perfect surface finish on curved surfaces.
StatusThis is a WORK IN PROGRESS and I'm using this blog posting to collect the links and bits and pieces I found so far.
Machine compatibilityI could not yet determine if the machine control program (in my case MACH3) is required to support TCP (tool center point) compensation.
This means that X+Y+Z coordinates in G-Code refer to the center of the tip of the tool and A+B+C refer to the angle of attack.
During G-Code Generation Fusion 360 has absolutely no idea if a given orientation is mechanically impossible for the machine to perform and thus cannot aproximate it with a less then ideal angle of attack or a similar mitigation strategy.
It is clear that all calculations happen in the Machine Configuration.
To get there you already need to have a toolpath. It's in "postprocess"->Open Config.
"Tip: Ask your reseller about customization of the setup sheets and post proces" is not very helpful if you build the machine yourself and therefore ARE the "reseller".