M24

[adamant]

I found this program in our editor..............anyone know what m24 would do in the place it is in this groove?



N5G00G28U0W0T0
M03G97S600T0101
M08
G00X1.63Z0.1
M08
M24
G76P010060Q10R0
G76X1.568Z-0.32R0P300Q80F0.0416
G00Z2.M09
G00G28U0W0T0
M01

[dcoupar]

M24 is Chamfering OFF for the G76 that follows. M23 turns Chamfering ON. I've never seen it used with a 2-line G76 cycle before...

[adamant]

dcoupar,

Thanks for your reply.

How does chamfering work?
I've used G76 for roughing a grove and finnished with G1. I normally add chamfers with G1 finnishing.

[g-codeguy]

Originally Posted by adamant dcoupar, Thanks for your reply. How does chamfering work? I've used G76 for roughing a grove and finnished with G1. I normally add chamfers with G1 finnishing.

G76? Are you sure you didn't use a G75 or G74 for grooving? G76 is for threading, though I have used a groove tool with a G32 to make a groove in a figure 8 shape for an oscillating shaft. Other than that, I can't picture a "groove" that can be done with a threading cycle. This was the only part I've ever seen where the groove ran along the Z-axis instead of around the X-axis. You wouldn't be finishing this type of groove with a G1 because using the feed override switch would make scrap.

Can you explain what the groove looked like (or show a picture) that was made with a G76? Thanks.

Our older Hitachi uses the M23/M24, but as stated, it is a single block call. I don't believe you can control the chamfer with this call. I can look tomorrow at work.

[adamant]

Originally Posted by g-codeguy G76? Are you sure you didn't use a G75 or G74 for grooving? G76 is for threading, though I have used a groove tool with a G32 to make a groove in a figure 8 shape for an oscillating shaft. .

woops,

you are right.

I was thinking face groove......but that would be G74

G76 is a threading can cycle........so what is the M24 used for in that progam?

[dcoupar]

M24 turns off the chamfering at the end of each threading pass. M23 turns it on. This is from my days of Mori's with Yasnac's.