[DEAN]

I don't entirely understand this command. There are several letter commands that I am not clear on.
I was thinking this command might be the solution.

I'll describe my problem: Mainly it is chip control (more like ball control).
I deep bore (core out) (1.250" to 2.0") plastic rods. The ID's are all over the map so buying rod is not always possible and some of the materials I use just aren't available in tube form.

Bores are usually about 4-5 inches deep.

Materials: Nylon, ULTEM and the like.

Ive been using soluble oil.

If the ID is over 1 inch I usually start using a boring bar after punching it out with the 1 inch drill. I have found if I use larger bits it can get really grabby and causes alot of friction inside.
Or, with the case of the ULTEM material; it gets very chippy and grabby.

The problem is managing the stringy ball of chips.
(Up to this point I have been doing this on a manual lathe, taking delivery of the CNC lathe soon)

My solution has been doing what I would call "peck boring" using my micro mister shooting just air at my R plane to blow the ball of chips off the end of the boring bar on retraction.

I feed in Z about .500 per peck
Retract to the R plane (chip gets blown off)
Incrementally increasing the Z peck depth
Repeating this retracting process till I reach the bottom of the hole.
Open the ID up a little more and repeat.

This works excellent. But as you can see is labor intensive manually.

Will any of the HAAS canned boring cycles solve this problem?

Thanks for any help...

DJ