Anyone familiar with Fagor canned cycles?

[g-codeguy]

We have a CMS with a Fagor control, and a few old manual Hardinge lathes retro fitted with Fagor controls. Only programming manual I have says CNC 8025 T, TS. They are quite the pain when you are use to programming Fanuc controlled machines for the most part.

I am having trouble with the G83 drill cycle. This is what I have.

N100G0M8M50 (DRILL)
N110G97S1200M3
N120X0Z.5F.0025T10.10
N130P0=K0 P1=K0 P4=K1.165 P5=K.167 P6=K.5
N140P15=K.2 P16=K.2 P17=K.02
N150G83

According to the manual (and the picture example) P6 "...defines the distance to the part from the point where the tool ends the positioning approach." I take this to be a rapid move (positioning approach). Instead program is feeding from Z.5.

Example shows P16 as being the incremental distance the tool rapids away from each ending feed point while P17 is the "distance between the bottom of the previous penetration and the point where the tool ends the rapid approach for a subsequent penetration."

To me these statements (and picture example) mean that I should get results like this: From X0Z.5 rapid to Z0 (has a nice 90 deg. spot drill), feed in to Z-.167, rapid to .033 (-.167+.2), dwell .2 sec., rapid to Z-.147, feed to Z-.334, etc.

Instead it rapids back .02 (I assume, since move is too short to catch a distance), and then feeds in the .167 depth. Tried reversing the values in P16 & P17, but that didn't work.

Any help greatly appreciated. I managed to get the G68 cycle working with one exception. If I put a value in P7 (Finishing stock allowance along X axis), it alarms. At least I can get the threading cycle to work right!

[Oregon Rich]

When I use the G83 drill cycle I put it all on one line,seems to work for me.

[Oregon Rich]

I replyed too soon I didn't look at your lines very closely. one of my programs has the following line

N90 G83 P0=K0 P1=K0 P4=K.625 P5=K.05 P6=K.01 P15=K.2 P16=K0 P17=K.01

P0 and P1 are rapid moves for position, P4 is final depth P5 is depth per cycle P6 is the distance from the point to the part P15 is the dwell P16 is how far the point rapids back after each cycle as you see in my program it pulls back to the start point P17 is the safty distance.

this line drills a 1/16 hole in copper to a depth of .625

hopes this helps you

[g-codeguy]

Rich, I apologize for not getting back sooner. Thanks for the information. I will give it a try the first chance I get. Drilling deep enough to require a canned cycle is something we seldom do on the Fagor controlled machines. They are used for secondary work for the most part.

I will let you know my results. Thanks again.

[Oregon Rich]

A fagor 8025 will also do a peck cycle but it has to be programed manualy using a G25 its kind of a pain to do but once its programed its there.