Helical data ......ancient controls

[Ballnose Bill]

Hey guys, I want to post a thread mill that uses I,J,K for a acromatic 850 sx control. Currently I have to linearize helixes to get this to work which means lots and lots of five place decimals. Did I mention this is an archaic control without MB's worth of storage. We do not drip feed either, but that is an entirely different post so we will just keep it to generating a code that would shrink a thread mill to several lines. Currently when I do not linearize helixes I get this code

 

:G70 G00 G40 T11 H00 M06

N100 G00 X0. Y0. S2292 M03

N101 G00 Z2.

N102 Z.1

N103 G01 Z-1.312 F50.3

N104 G41 Y-.1743 F9.2

N105 G03 X.1843 Y0. Z-1.3027 I.0097 J0.

N106 X-.1849 Z-1.2842 I-.0003 J0.

N107 X.1854 Z-1.2657 I.0003 J0.

N108 X-.186 Z-1.2472 I-.0003 J0.

N109 X.1866 Z-1.2287 I.0003 J0.

N110 X-.1872 Z-1.2101 I-.0003 J0.

N111 X.1878 Z-1.1916 I.0003 J0.

N112 X-.1883 Z-1.1731 I-.0003 J0.

N113 X.1889 Z-1.1546 I.0003 J0.

N114 X-.1895 Z-1.1361 I-.0003 J0.

N115 X.1901 Z-1.1176 I.0003 J0.

N116 X-.1906 Z-1.099 I-.0003 J0.

N117 X.1912 Z-1.0805 I.0003 J0.

N118 X-.1918 Z-1.062 I-.0003 J0.

N119 X.1924 Z-1.0435 I.0003 J0.

N120 X-.1929 Z-1.025 I-.0003 J0.

N121 X.1935 Z-1.0064 I.0003 J0.

N122 X-.1941 Z-.9879 I-.0003 J0.

N123 X.1947 Z-.9694 I.0003 J0.

N124 X-.1952 Z-.9509 I-.0003 J0.

N125 X.1958 Z-.9324 I.0003 J0.

N126 X-.1964 Z-.9139 I-.0003 J0.

N127 X.197 Z-.8953 I.0003 J0.

N128 X-.1976 Z-.8768 I-.0003 J0.

N129 X.1981 Z-.8583 I.0003 J0.

N130 X-.1987 Z-.8398 I-.0003 J0.

N131 X.1993 Z-.8213 I.0003 J0.

N132 X-.1999 Z-.8027 I-.0003 J0.

N133 X.2004 Z-.7842 I.0003 J0.

N134 X-.201 Z-.7657 I-.0003 J0.

N135 X.179 Y-.0926 Z-.75 I.0002 J-.0001

N136 X.088 Y.1701 I.0087 J-.0045

N137 G01 G40 X0. Y0.

N138 G00 Z.1

N139 Z2.

 

It looks good but it also will not work in the control as it alarms out as insufficient helical data. Does anyone out there know exactly what this control is looking for. I have seen code such as G17 and have read some sort of "P" value, but I am stabbing in the dark here. Once I know the code that it is looking for I can work at getting it to post which if you know that as well keep it coming. I am going to run the current program with the lengthy code but this problem will only disappear with the machine and that couldn't be soon enough so I am looking forward to resolving this issue with all of your help. Thanks in advance.

[Allan]

The machine needs the pitch value of the helix.

The P value would be the pitch of a complete revolution.

In-House Solutions has posts available for this control with the helix supported.

 

Allan

[Ballnose Bill]

Thanks Allan, I received the post from my reseller some time ago, like five years and tweaked it over the years to make it work for us... I guess I am still doing so.

Do you mean

G03 X.1843 Y0. Z-1.3027 I.0097 J0. P.03704

X-.1849 Z-1.2842 I-.0003 J0. P.03704

X.1854 Z-1.2657 I.0003 J0. P.03704

X-.186 Z-1.2472 I-.0003 J0. P.03704

X.1866 Z-1.2287 I.0003 J0. P.03704

I guess I should include that it is an 1/8-27 pipe thread.

[Allan]

Yes that is is but usually the pitch is "K" for G17 plane on a Cincinnati machine.

 

Allan

[Ballnose Bill]

Perfect Allan, thanks man I get a ton of help off of this forum but usually I can just search though the old threads. It means a lot to me all the support offered here, thanks again. This is what a segment of the code looks like exactly and it worked just fine. I'll keep In House in mind when we upgrade to the Ethernet connections we have some 4 axis mazaks that will need it sooner of later.

 

 

G00 Z2.

Z.1

G01 Z-1.312 F50.3

G41 Y-.1743 F9.2

G03 G17 X.1843 Y0. Z-1.3027 I.0097 J0. K.03704

X-.1849 Z-1.2842 I-.0003 J0. K.03704

X.1854 Z-1.2657 I.0003 J0. K.03704

X-.186 Z-1.2472 I-.0003 J0. K.03704

X.1866 Z-1.2287 I.0003 J0. K.03704

X-.1872 Z-1.2101 I-.0003 J0. K.03704

X.1878 Z-1.1916 I.0003 J0. K.03704

X-.1883 Z-1.1731 I-.0003 J0. K.03704