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Hi, first time posting to the forum so go easy on me
i'm really stuck on something and would appreciate some advice from fellow Fusion360 CNCers. I am milling crank cases for small model engines and thought I'd give 3d adaptive clearing a try since it seems best suited to roughing out complex shapes. Trouble is, when i go to mill the part, the part is off centre vs the model point I'm using as the origin.
some facts:
In fusion.
- The simulation looks perfect i.e the part is centred around the origin as it should be.
On the machine (MACH4)
- All axes homed. Offset G54. Secondary DRO zero'd on the origin too.
- After the incorrect/off-centre part is made, If i do a G0 X0Y0, the machine goes back to the true zero as evidenced by the secondary (glass scale DRO). This in my mind rules out mechanical or Mach issues causing missed steps or things lie that.
- Looking at the GCODE for a drilling operation, the coordinates are spot-on. These use the same set-up as the 3d Adaptive Clear so potentially have ruled out an issue on the way I have created my setup or selected the model point.
This is a real mystery to me and have never had any trouble like this before (and frustrating as I've wasted a lot of time and aluminium on this already). My gut feel is that there might be some issue with the mach post processor or some incompatibility with a particular 'mode' set on the machine.
Model Link: https://a360.co/2XtRkJL
Some pics below.
Thanks,
Patrick
Solved! Go to Solution.
Fusion