On 05/24/2021 04:26 PM, Ed wrote:
Following is a snippet of a program using G33.1
The first hole is tapped correctly then all the rest get
switched X and Z. It will move to X -.8 then back then to
x-.25 and repeat for the rest whether there is a G33.1 on
the line or not.
Using Version 2.7.14
g53g0z0
m6t25
g43h25
m3s500
g0x-.25y0z.2
g33.1k.0556z-.8
g33.1x-1k.0556
g33.1x-1.625k.0556
x-2.375k.0556
x-3k.0556
x-3.75k.0556
x-4.375k.0556
x-5.125k.0556
m5
The first G33.1 looks right, it has a K to specify the
thread pitch and a Z to specify how deep.
The second and third do not specify a Z.
The quick ref (
http://linuxcnc.org/docs/html/gcode/g-code.html#gcode:g33.1
) has this warning:
For Z only tapping preposition the XY location prior to
calling G33.1 and only use a Z word in the G33.1. If the
coordinates specified are not the current coordinates when
calling G33.1 for tapping the move will not be along the Z
axis but will be a coordinated, spindle-synchronized move
from the current location to the location specified and back.
Is this the problem you are seeing?
Jon
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