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So, you dog-legged it with a bracket bolted to the adjacent turning tool holder? That's actually pretty impressive. Really smart thinking there I have to say.
We have a 6½" version and it's a bit too much for the Doosan Puma 700. Drilling stainless you have to reduce the feed to .003"/rev. to keep the Z load under 100% and for aluminum you max out the spindle motor (500 rpm and .010" feed). It's punching in a nice hole though 😝
Great question. I wouldn't call it scanning. I used Mastercam to import the .stl file and made my operations directly to the .stl surfaces. The programming I did over a period of time but probably 2-3 hours programming.
You guys had/have that fantastic MORI NTX (or NZX) , this doosan is ok , but it's in a different class compared to that . If i remember you guys also had an okuma space turn LB something something , i estimate that's also a lot more rigid and precise . Even so doosan might be half the price .
The puma is a box way machine, I wouldn't have expected them to waste their time with a Lynx. I think this machine is about as robust a lathe you can buy from DN currently. How it stacks up to a box way machine from Mori, Mazak, or Nakamura, I don't know. But I do believe you can get as good if not better service from DN in the northeast than any of those other manufacturers. Not too familiar with Okuma distribution / service in the northeast. Do you have any experience with these brands? I'm looking to get something similar in the next year or so. Build quality and service are obviously top priority.
@@teddytavernier7522 I have with DMG MORI and seen Mazak in action . These macines just work . With doosan i don't have hands on experience , but everything is a little bit weaker and the machine dynamics are visibly worse . Some things i look at on spec sheet is torque curve , axis maximum push force . For example 6.8kN , if i would like to get a killer good size machine for myself i'd like this value to be as high as it can be . Also i look at rapid traverse speeds , turret indexing time , or tool change time , what options does the machine have , the weight of the machine... I worked on some old HüllerHille machines they looked like shit , had electrical problems , but they cut metal like butter , we were never able to overload those machines , tool changer arm could handle up to 50kg tools and was fast as fck , pallet changer was also superfast . Everything was motor driven not hidraulics and pneumatics bullcrap . Everything was total premium . The only problem was the lack of maintenance for more than 10-15 years , and bad working conditions for the machine . The ballscrews were HUGE . This was a 800mm*800*800 horizontal machine and the ballscrews were around 80mm diameter ! I've never seen them so thick on any other machine with the same size . A haas ec 1600 had half the diameter on the ballscrew , now claculate the cross section surface area , and you'll see the difference . One thing to avoid is cheap and light machines , and the "ECOnomic" offerings from DMG . The only problem with premium cnc machines is ...well they cost premium. But if you want to do heavy cuts in a productive way than there is no other option . I personally know the DMG CTX line is weak , now they rebranded to CLX ...it's the same weak machines...Precise but weak .
We still have the Mori NTX, but also we have an old Doosan Puma(my first) a Okuma LBX, a MC DL40, 2 Okuma Vertical Mills and older machines we run. The Doosan was my first CNC lathe that I learned on and beat to shit. We had very little need for service unless it was our fault. Overall we have great service from all our suppliers but most machines we rearly have major issues with that we need outside service. We got this Doosan as a replacement for the older Puma, that we moved but still use, it is 18 years old and going strong. That's why we went with another Puma with upgraded everything and of course the milling opition with Y movement. Already getting nice parts done and have more to come. Great discussion btw.
@@zalamachineshop Nice nice . So i guess the doosans are pretty decent . Hope you'll have time to upload some of the more interesting parts . The ones you did on the NTX were always next level . The ZalaRailSystem is also a clever tool :D
What a novel idea. This is great idea for my small CNC lathe. I dont need absolute accuracy but I think this is probably as accurate as me trying to measure it.
We had a major issue with alignment on this machine, so this was the best option. When I have production drilling jobs I do this trick on all my machines and push the drills to the limit.
