I have a calculation syntax error. All I wanted to do was run two threads with a .020" bigger diameter between them.

this is my program but when I go to the .248 major diameter then to the .270 then back to the .248 it gives me calculation syntax error

what could be casuing this?

N5G70G90G40
N10G92S2500
N15G00X2.00Z2.00
N20T0606
N25G95G96S1000M03
N30G00X.750Z.100
N35G73U.025R.025
N40G73P45Q65U.005W.001F.005
N45G00X.100
N46G01Z0
N50G03X.200Z-.100R.1
N55G01Z-.200
N56X.248
N57Z-.750
N58X.260
N59Z-.800
N60X.248
N61Z-1.000
N65X.750
N70G72P45Q65F.002
N75G00X2.0Z2.0
N80T0404
N85M03S350G97
N90G00X.250Z.20
N95G78P010060Q0020R.001
N100G78X.205Z-.700P0225Q0120F.035
N105G00X2.0Z2.0
N110M30
%

anybody? All I am telling the machine to do is go in .020" and it says "calculation error"

please help

anybody?

What control type and machine are you using?

Am I missing something here or is there only one chase line

"All I wanted to do was run two threads with a .020" bigger diameter between them." ????????????????????

are you trying to run a double lead thread with different pitch diameters?
if not what are you trying to attempt?

I am guessing that you are altering the program between threads?
Have altered both the N90 line to reflect below?
N90G00X.270Z.20
and the N100 line to reflect the below?
N100G78X.205Z-.700P0325Q0120F.035
If you are altering the thread cycle between threads make sure these two lines are correct if they have wrong numbers this may caues problems?

What control type and machine are you using?

i'm using an emco machine

Am I missing something here or is there only one chase line

"All I wanted to do was run two threads with a .020" bigger diameter between them." ????????????????????

are you trying to run a double lead thread with different pitch diameters?
if not what are you trying to attempt?

I am guessing that you are altering the program between threads?
Have altered both the N90 line to reflect below?
N90G00X.270Z.20
and the N100 line to reflect the below?
N100G78X.205Z-.700P0325Q0120F.035
If you are altering the thread cycle between threads make sure these two lines are correct if they have wrong numbers this may caues problems?

I didn't write the other chase line yet. I was going to turn the major diameter to get it ready for the 2nd thread. I want the same thread (1/4-28) on the back as I have on the front. but it won't let me make hte major diameter

got it fixed it. I just took the command out of the cycle. It worked find. I tricked the computer thinking it was going to change tools then wnet int from there. worked great

then after that. I ran the spindle backwards to come in from behind to do the right hand threads cause if I ran it forward it would be left hand threads

thanks guys though
-garrett