Haas Setting 29

[Rocketmachinist]

On Haas VMCs, there is a setting that will turn G91 to a non modal mode. Is there any reason that I should not turn this setting on? I always think in absolute and never run subroutines and my program only uses it to get the z axis up. So will any problem arise if I turn this setting on?

[Hardmill]

On Haas VMCs, there is a setting that will turn G91 to a non modal mode. Is there any reason that I should not turn this setting on? I always think in absolute and never run subroutines and my program only uses it to get the z axis up. So will any problem arise if I turn this setting on?

 

 

Its not on by default for a reason.

Id leave it as is.

 

Bad thing can happen if you change things from the norm.

 

Why would you want to change it??

 

 

 

 

 

 

 

 

 

PEACE

[Rocketmachinist]

so when I'm programming in mdi i don't have to remember the g90 before anything else. The last lines of my code are

 

N17 G91 G28 Z0. M9

N18 G28 Y0.

N19 M30

%

 

So then I am programming in MDI and say G54 X0. and it goes nowhere or whose goes somewhere weird I want it to be in g90 all the time. Probably I should just edit my post.

[McLaren]

This is how I end my programs on a HAAS;

G00Z0.1M09
M05
G91G28Z0.
G00G90G53X-15.5Y0.
M30

 

Then I just change the X move when I need to.

[BenK]

If I remember correctly all you nee to do to send a Haas home is hit the axis you want to send (x,y or z) then hit the G28 home button.

[Mic6]

Rocket, my VF2 Setting 29 G91 Non-modal is ON. Everythign works fine, even sub programs. Especially helps for MDI commands like you listed

[K2csq7]

Or just find the spot(s) in your post (pretract and pretract0 for null toolchanges) that outputs the

N17 G91 G28 Z0. M9

N18 G28 Y0.

N19 M30

%

 

and add a line so it always outputs like this...

 

N17 G91 G28 Z0. M9

N18 G28 Y0.

N** G90 <<<<<<<<<<<<<<

N19 M30

%

 

Not much to worry about with that...

[Josh T™]

+1 to Keith's method