Z height help

I have been trying to change my Tool length wear in a program from sidewallstcheatsheet.comside A then Different on side B and nothing is working. Right now i am using 2 different H #s to make it work but would like to do something different. Here is what i have tried so far with no luck
#101=15 ( 15= Tool Number
G43H[#101-.005]
Also tried
#101=15-.005
G43H#101
and my last try was
G10L11P15R-.005
This worked Great on side A but when it rotated and went to side B and i changed the R to R.002 alarmed the machine out.
thanks for anyones help on this

The first method is incorrect and will always give an error.

The second method should work. We use this all the time for a similar purpose.

What is the alarm you are getting?

Quote:

---

Originally Posted by RCraig2

#101=15 ( 15= Tool Number
G43H[#101-.005]
Also tried
#101=15-.005
G43H#101

[/B]

---

Your above logic is incorrect as shown following:

In your example

G43H[#101-.005]

and

#101=15-.005
G43H#101

is the same as trying to execute H14.995; clearly this will result in an error.

What you should have, if you want to use a User Macro Statement, is as follows:
#101 = 15
#[2200 + #101] = #[2200 + #101] - 0.005
G43 H#101

The above is the same as writing:
#2215 = #2215 - 0.005
G43 H15

#2215 is the System Variable for Geometry Offset Number 15 of a Fanuc and some other controls.

The System Variable will depend on the Offset System supplied with, and make of the control. Controls supplied with Geometry and Wear Offsets gives you the option of modifying the Wear Offset to achieve what you want to do.

Regards,

Bill

This is how I do it our Makino's

#10000 (is CDC, or diameter comp)
#10001 (is tool length comp)


(*************************************)
(2.0 10 FLUTE CFM TN #401 P.1)
(*************************************)
#500=1(Part # were currently on)
#501=1(G54.1 work position variable)
#504=1(Total part eval var)
#505=0.(Index variable)

N401G17G40G80G90G54.1P1
T401M06
T417(POSITION NEXT TOOL)
G95
G115(TOOL LENGTH ZERO CHECK)

(************************************)
(DYNAMIC Z LENGTH OFFSET)
(************************************)

#527=0.00159(INCREASE TOOL LENGTH)
(Positive number makes the tool longer)
(Negative number makes the tool shorter)
#10001=#10001+#527(SET LENGTH T#401)


M887(Terrace)
M07(Air)
S1200M03

N2100
WHILE[#504LE#635]DO1
M11
G00G54.1P#501X-1.1Y0.95B#505
M10

G00G43H1Z0.0


G01X7.35F.030
G00Y2.357
G01X-1.1F.030
G00Z2.0
#500=#500+1(Incr part were on)
#501=#501+3(Incr G54.1 wrk pos)
#504=#504+1(Incr total part eval var)
IF[#500LE2]GOTO2100
G00Z5.0
#505=#505+90.
#500=1(Reset part side var)
IF[#505LT360]GOTO2100
END1
G00Z5.0
M05
M09

(CANCEL DYNAMIC Z LENGTH OFFSET)
#10001=#10001-#527(ZERO OUT LENGTH)


(INDEX TO 90 AND USE THE SAME TOOL)

#500=1(Part # were currently on)
#501=2(G54.1 work position variable)
#504=1(Total part eval var)
#505=90.(Index variable)

G17G40G80G90G54.1P1
T401M06
G95
G115(TOOL LENGTH ZERO CHECK)

(****************************************)
(****DYNAMIC Z LENGTH OFFSET)
(****************************************)

#527=-0.0008(TOOL LENGTH)
(Positive number makes the tool longer)
(Negative number makes the tool shorter)
#10001=#10001+#527(SET LENGTH T#401)

M887(Terrace)
M07(Air)
S1200M03

N2200
WHILE[#504LE#635]DO1
M11
G00G54.1P#501X-1.1Y0.95B#505
M10

G00G43H1Z0.0

(DO SOME MORE STUFF)

G00Z2.0
#500=#500+1(Incr part were on)
#501=#501+3(Incr G54.1 wrk pos)
#504=#504+1(Incr total part eval var)
IF[#500LE2]GOTO2200
G00Z8.5
#505=#505+90.
#500=1(Reset part side var)
IF[#505LT360]GOTO2200
END1
G00Z8.5
M05
M09

(CANCEL DYNAMIC Z LENGTH OFFSET)
#10001=#10001-#527(ZERO OUT LENGTH)