HOW TO UPDATE G54 WCS WITH PROBE WIPS WHILE USING A 4TH AXIS ROTARY

[banddspindles]

OK, I HAVE A 36" SQUARE TOMBSTONE WITH A SHAFT GOING THROUGH A TAIL STOCK ON MY MACHINE.  i HAVE THE OTHER SIDE MOUNTED TO A 4TH AXIS ROTARY.  i HAVE MY G54 WCS SET TO THE EDGE OF THE TOMBSTONE AND IN THE CENTER OF THE SHAFT ROTATION.  please SEE IMAGE BELOW.

MY QUESTION IS, HOW CAN i UPDATE MY G54 ROTATIONAL WCS WITH MY WIPS PROBING SYSTEM BASED OFF OF THE DEVIATION OF A PART IN THE 3RD OR 4TH OP.  i KNOW i CAN USE G55 G56,57,58... ETC. TO USE 3 AXIS SETUPS AND DO NOT TURN THE ROTARY, BUT THIS WOULD BE TOO MUCH WORK.  LETS SAY THAT A PART SITS .002 TO THE RIGHT IN THE 3RD OP, i WANT TO UPDATE THE X-AXIS FOR G54 WCS ROTATIONAL AXIS TO THE RIGHT .002 SO THE TOOL PATH WILL MOVE TO THE RIGHT .002 AND MACHINE CORRECTLY.

[seth.madore]

Well, which part is off .002" and what do you plan to adjust to bring it into spec? Where are the other parts coming from in regards to WCS? Do they have their own?

In my experience, you really need to be assigning one work offset to each set of parts, depending of course, on tolerance requirement and actual operations being done.

With one offset, how much can you adjust without throwing things out in other ops?

[banddspindles · Accepted solution]

All parts are in the g54 which is a 4th axis wcs. I figured it out though. So I set g55 and 56 to all of the exact a,x,y,z values of g54. Then I probed a face in x axis and chose g55 to drive the probe. I used the g55 probe to update g56 wcs and drive operations off of the g56. Works great. Just make sure if you have a pattern you select to drive toolpaths inside the folder with desired wcs (my case g56).