Spiral interpolation

[LYN BYRD]

Will the Centurion controls do this? Basically adding a "Q" for the spiral lead in a G02,G03 line.
Thanks

[Farmers Machine]

are you wanting to do something like thread milling?
My Centurion 6 will thread mill with straight or tapered threads but it is programmed in conversational.It may be worth your while to order new software and up grade your control to the newer programming system
Good Luck
The Farmer

[LYN BYRD]

Mine will do the thread milling (tapered and straight) from the conversational screens also. I think they achieve this with the parametric language. Just trying to set up Visual Mill cam software to do hole pocketing and they have the option for outputting spiral code in lines or spiral arcs. If the lines option is used, the code gets rather lengthy.

[ZZZZ]

If your control software version doesn't have the thread milling screen or if you write text programs, you can add a Z axis value to the end point on the arc. You may need several arcs to get the depth of the helix you want. Add lead-in and lead-out arcs to the series of arcs to get the thread. You can also rotate the program about the center of the thread to force the starting point or the point at which the fastener gets tight.

[LYN BYRD]

Helical interpolation from the cam is working. Just trying to get spiral pocketing to work. I think that the conversational "pocket circle clear " has spiral movement in it, but made up of individual arcs. My cam package will either output spiral arcs or short lines. I think that a "g code" spiral arc, you have to be able to add a "Q" in the line for the pitch or lead.
Thanks