[positiverake1]

meldas 300 control, having problem with running a G83 drilling cycle in X with a right angle head, tryed changing plane, book says G19, no luck? any ideas

[JMS4287]

Try using a G87 instead of a G83...your plane shouldn't matter if your only moving one axis..G87 is the same as a G83 except for the X axis instead of Z....I've never worked with the 300 control but it works on other Mits Meldas controls...

[positiverake1]

This is a vertical mill, the G87 is a back bore cycle, I have seen what your talking about on a lathe with live tooling, thanks for the input, any other Ideas ?

[JMS4287]

sorry for the confusion....not familiar with the machine but, you could always write a Drill Pecking Macro...for example..

G65 P8888 U.100 Q.03 R.01 F.001 (instead of G83 line in prg)

O8888(sub Prg)
#7=#17
#8=0
#3=#17
#2=0
IF[#3GE#21]GOTO10
WHILE[#7LE#21]DO1
G0U#8
G1U#3F#9
G0U-#7
#2=[#2+#17]
#8=[#2-#18]
#3=[#17+#18]
#7=[#3+#8]
END1
IF[#2EQ#21]GOTO99
N10
#3=[#21-#8]
G0U#8
G1U#3F#9
G0U-[#3+#8]
N99
M99

I'm sure there is a shorter way to write it..but something like this should work..at least drilling in the X(U) + direction...it will probably need to change a little if your drilling in the X(U) - direction I didn't look into it enough to know...

(note: this moves incrementally (U) )

[JMS4287]

this prg should work in the pos or neg direction....


G65 P8888 U-.100 Q-.03 R-.01 F.001 (for drilling in U (-) direction)

G65 P8888 U.100 Q.03 R.01 F.001 (for drilling in U (+) direction)

O8888(sub Prg)
#7=#17
#8=0
#3=#17
#2=0
IF[[ABS[#3]]GE[ABS[#21]]]GOTO10
WHILE[[ABS[#7]]LE[ABS[#21]]]DO1
G0U#8
G1U#3F#9
G0U-#7
#2=[#2+#17]
#8=[#2-#18]
#3=[#17+#18]
#7=[#3+#8]
END1
IF[[ABS[#2]]EQ[ABS[#21]]]GOTO99
N10
#3=[#21-#8]
G0U#8
G1U#3F#9
G0U-[#3+#8]
N99

[positiverake1]

No macro option (sucks) I ended up using a poor mans G83 (incramentel sub) and and nesting it with another sub so I can call it up when I need it , it works ,but kinda old school, thanks for all the input