Mits control - G76 cycle - sanity check

Guys, would you look at this code:

G76 P000060 Q30 R0
G76 P300 Q100 X0.295 Z-1.13 F0.0625


vs this one:

G76 P000060 Q30 R0
G76 X0.295 Z-1.13 P300 Q100 F0.0625


Note the second line and the location of the P/Q words.


The first one takes one single pass at full depth, the second does what's expected, .01 first depth then the rest at .003 max.

I never thought that the location of the words within a block makes a difference.
I believe it does not matter on a Fanuc OiTc ( I'll have to verify that later), certainly does not on a Haas ( though that uses the single line G76 )

This is on a Mori NL2000, and I have repeatedly verified the behavior.

Am I stupid or is this normal?
I always thought that the entire block is processed first before executed, location of the words within it notwithstanding.

P should be the starting line number, and Q the ending. So, shouldn't P be a smaller number than Q?

ewlsey said:

P should be the starting line number, and Q the ending. So, shouldn't P be a smaller number than Q?

Click to expand...

Wash face with cold water, do 20 pushups, grab large cup of coffee and when fully awake, re-read post.

G76 is threading cycle, not OD roughing !

At least someone is paying attention...

ewlsey said:

At least someone is paying attention...

Click to expand...

Touche ....