[bdyenter]

I have PUMA 700 with Live tooling> Very happy with it !

Comes in handy when drilling radial holes on castings, bolt circles. Not always
the best for time, but it depends on how you set up your shop and run your jobs.

One thing that impresses me is that there is some balls in that gear-box for the live tooling. Largest tap I have done thus far is 1"-8 un and had no
problem. Accuracy is there.... but as the guys mentioned above... if someone else has there paws on the machine other than you... then with me it's trust nothing. I always indicate center on live tools. Having the tool out as much as .010 from a crash will put a bolt circle off I believe .020 in location.

So u gotta be carefull with these guys if you want to use the live tooling with accruacy. That goes with any machine, not just Doosan.

Another benefit is adding a 24" chuck in this frame. This provides a 6 1/2" throat diameter in the drawtube. I do shaftwork that are sometimes 120"-150" long. Nice to be able to choke anything up to 6 1/2" at anytime.

Plus a tailstock is a bonus as well.

I have a 60hp with high/med/low gearbox. Another bonus for heavy hogging for roughing material. I use a CNMG-543 and turn .300/side feeding .022 ipr. @ 500-600 sfm. Chips come off like nickels hitting the glass. Thats in low gear M41 with left hand tooling as well and still have room to step to a CNMG643 and get to .350-.400/side. Cool stuff man! Reason I specify left hand tooling is that it is a must when you do roughing like this. Otherwise you will creat lift off your riser gibs. Not good (: so use left hand tooling for heavy roughing like this