Newbie- Tapping on Sinumerik 802Dsl control

[digitallife10]

Hi Everyone!

This is my first post here ... so pls forgive me if I do something wrong ..

I have bought a CNC Lathe machine a year back.

It came with Siemens control - Sinumerik 802D-sl. The manual that came along is quite unhelpful for someone who is new to G-Code programming.

I had never worked on a CNC prior to that .. and I have learned to use it on my own .. as I do only basic stuff on it and use only turning cycles. Rest I do with manual G-code.

Now, I want to do tapping in a 25mm OD Brass rod with ID 18mm.

1. The manual says something about "Compensating Chuck" ... what is that supposed to mean ? ( i couldnt find it on google ). My chuck does not have controlled rotation ... if that what it means.

2. The manual says something about Cycle84 (rigid tapping) and Cycle840 (tapping without compensating chuck) ... which one do I have to use if my chuck does not have controlled rotation ?

And, can someone please give me an example code as to how to a do tapping using the above cycle ? .... I wish there was a Sinumerik for Dummies book available ... as there is so little information on internet about it.

Hope to hear back from you guys !

Thanks,
Dan