Haas Eperts.. why cant I get G41 in G19 plane ??

[RandleXX]

When I try to use G41 cutter comp in G19 (Y,Z) plane I keep getting error saying I cant apply G41 in any plane but G17 ?? Is this A Haas thing? I swear I have done this many times before on Fanuc based controls.

Machine is a Haas VF6

 

Thanks,

[gcode]

There may be a switch on the Settings page you need to flip to enable this

 

 

[Colin Gilchrist]

Try using G141 when you've got G18 or G19 active.

[RandleXX]

Try using G141 when you've got G18 or G19 active.

 

G141 didn’t error out in graphic mode. Now I just need to do a real test cut to see if this works.. unfortunately they are setting up another job on this machine so I wont be able to test for a while, but I will post back here with results for future reference.

 

Thanks a bunch !!

[RandleXX]

From what I have found so far..

 

Apparently to use G141 correctly you need an I,J,K vector at every X,Y,Z. The I, J, and K specify the normal direction relative to the center of the tool to the contact point of the tool in

the CAM system. It can only be used for G00 and G01 moves.

 

I am Threadmilling with a right angle head and this will not work unless I break the arcs up into tiny segments and modify my post to output I,J,K vectors along with each X,Y,Z.

 

Next questiion, How do I modify post to get IJK vectors ???

 

Anyone here have experience with this?? Hopefully I am going down the right path..

 

Maybe I am opening up a can of worms here and it might just be easier to repost the toolpath with each offset change, but this sure is fun research.. lol!!

[gcode]

go to the Arcs page of your control def.

set it to use

Detal start to center

check "Support arcs in XY, XZ and YZ planes

and

Check "All planes supported" for in Helix Support

 

 

[Bryan Johnson]

G141 should not be required for this, and G41 should work in all planes.

My guess is that you have an "I" on your G02/03 line with G19 and that is causing the error.