I am in the process of adding a rotary axis to my milling machine and router, both of which run GRBL. My plan is to disconnect the y axis and use this output to drive the position of the rotary axis. I have everything figured out except a post processor for Fusion 360 that will convert the A axis angle to a Y movement which also accounts for the z height/radius (i have the maths figured, but not the code) - I have searched and searched for a post processor that does this, but to no avail. Does anybody know where i will find one?