On 2/7/22 18:43, andy pugh wrote:
On Tue, 8 Feb 2022 at 00:30, Andy Howell <[email protected]> wrote:
What I still don't understand is how it got set. We don't use the tool
table. We manually touching off the Z.
It's easy to touch-off the wrong dimension. Perhaps someone, at some
point, jogged in Y just before touching-off. That sets Y as active
axis and if you don't notice, that is the one you touch off.
(you might also need to accidentally select the tool table, rather
than the coordinate system)
That someone would be me :) Maybe I'll set it up so when LinuxCNC
starts, the tool table gets initialized with with just tool and pocket
numbers. We don't use tool compensation at all. That way if the students
run into problems they can just restart and be back to a known state.
I've already done that with a jig we use. In the .ini file, I set
RS274NGC_STARTUP_CODE = o<init> CALL
The init.ngc file does:
( Initialialzation code read at startup from RS274NGC_STARTUP_CODE )
o<init> sub
G54 G17 G20 ( First fixture, XY
plane, Inch )
G40 G49 ( Cancel Cutter Comp,
Cancel Tool Len Comp )
G90 ( Absolute
Distance Mode )
G64 P0.001 T0 ( Path blending tolerance
0.001, Tool )
G10 L2 P2 X0.484313 Y1.739985 ( Set jig offsets in G55 )
o<init> end sub
We have a number of students using the machines. I want to make them as
bullet proof as possible.
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