You can do this for longer parts if :
1) You buy an internally extended guide bushing to avoid pull through the back side.
2) Set your Z Axis Stroke Short to keep rigidity in stock TIR and helps to avoid Pulling through the back side of the Guide Bushing
3) Program your canned cycle in sets of strokes that do not exceed your Z axis Stroke Setting. Program your sections using any chamfers and radii for blending each Rough Turning Section.
4) Use a Groove Turn Insert to avoid chatter on entry. You may have to relieve the back side of the insert for less surface contact when cutting. It tends to machine like a wide wiper style insert which can cause chatter. Or program different feeds for the entry, turn and exits.
5) Finishing can be tricky because you have to finish each section preferably with a different tool at the end of each roughing operation.
It takes longer to make parts but it can be done. This was a Fanuc control though, not a Tornos.
For a Tornos if you have MDI, try a canned cycle without a bar. If this works, you have canned cycles.
Cheers!
Toby D.
"Imagination and Memory are but one thing, but for divers considerations have divers names"
Schwarzwald
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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