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Mach3 Problem With Circular Milling Operation

 

I have a simple g-code file that I generated using both FreeCAD (headset 6.nc) and MeshCAM Ver 5 (headset 5.nc).? FreeCAD does not have a Mach3 specific post processor so I used LinuxCNC as the target. MeshCAM does have a Mach3 post processor and that is what I used.? Both versions simulate perfectly using NC Corrector Ver 4.? Both version also fail to run with Mach3 with the following error message:? "Radius to end of arc differs from radius to start"? The error is produced by the first G1 command in each version which is line 12 in headset 5.nc and line 20 in headset 6.nc.? Does anyone know why I am getting this error and how I might fix it?? I thought it may be a rounding problem but both versions are accurate to 4 significant digits.? Note also that FreeCAD currently only generates g-code in metric units which is why the numbers are larger.??

Thanks,

Sam Monaco

headset5.nc
headset5.nc
headset6.nc
headset6.nc

 

Open Mach3 and go to Config>General Config and change the IJ mode to Absolute? - see if this fixes the issue.

On Sun, Dec 8, 2019 at 10:55 AM sdmonaco via Groups.Io <sdmonaco=[email protected]> wrote:
I have a simple g-code file that I generated using both FreeCAD (headset ) and MeshCAM Ver 5 (headset ).? FreeCAD does not have a Mach3 specific post processor so I used LinuxCNC as the target. MeshCAM does have a Mach3 post processor and that is what I used.? Both versions simulate perfectly using NC Corrector Ver 4.? Both version also fail to run with Mach3 with the following error message:? "Radius to end of arc differs from radius to start"? The error is produced by the first G1 command in each version which is line 12 in headset and line 20 in headset .? Does anyone know why I am getting this error and how I might fix it?? I thought it may be a rounding problem but both versions are accurate to 4 significant digits.? Note also that FreeCAD currently only generates g-code in metric units which is why the numbers are larger.??

Thanks,

Sam Monaco

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