Is adding a #TOLERANCE_INCH and #TOLERANCE_MM to the .ini file
sufficient?
What tolerances are reasonable?
Danny
-----------------------------------------From: "Jon Elson"
To: "Enhanced Machine Controller (EMC)"
Cc:
Sent: Monday January 14 2019 10:02:44AM
Subject: Re: [Emc-users] Fusion360 gcode= "Radius to end arc differs
from radius start"
On 01/14/2019 12:18 AM, Danny Miller wrote:
> I'm managing a community shop with the CNC I designed and
> built. It's running on LinuxCNC 2.7.4
>
> I was told people brought in some Fusion360-generated code
> that created an error "Radius to end arc differs from
> radius start". Nobody has provided me that gcode, so I
> have no further details. Google saysa this was a common
> issue after a q4 2018 patch to fusion360
>
Yes, a classic problem. LinuxCNC is strict about the start
and end radius needing to match to high accuracy. My fix to
this is to always use the R word instead of I and J to set
the arc radius, then there is never any way it can't match.
If fusion360 cannot be set to use the R word for arc radius,
then you can try the tolerance adjustment.
Jon
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