Daewoo Puma 6 with Acorn/DYN4
Posted: Thu Apr 18, 2019 6:39 am
I finally have this machine up and running. This past December it went down with a bad EPROM, it had manufacturer specific data on the chip and Daewoo wanted $8,000 for replacement parts. Not what I wanted to hear...
First decision- keep the ATC or get rid of it? I really wish there would have been a way for me to keep it in service but I use the machine in my business and needed it making parts. Since my parts are short lengths, gang tooling is an option. I'm not experienced with macros and this turret was controlled by a hydraulic motor, a ton of contact sensors, and an encoder. Not a challenge I was interested in facing.
I have a 3-axis CNC router that runs Mach3 as the controller and Gecko 320's to drive the Fanuc 5m servos. I figured I'd do the same with the lathe since it was running Fanuc DC servos. It worked..on occasion. I'd regularly lose communication with the smoothstepper and spindle control was a pain. After a lot of troubleshooting and parts replacing, I went a new route. I got an Acorn and DMM DYN4 1kw AC servos.
I really like how thorough the Centroid schematics are and Marty has some great videos on getting this setup (DYN4 to Acorn) up and running. Once I had all the parts, it didn't take more than a couple days to have the machine running reliably. Any questions I had were answered on the forum within a day or two.
Machine Specs-
Daewoo Puma 6
10hp spindle motor with Delta VFD-B
Hydraulic chuck (great for programming a bar puller)
Hydraulic tailstock
Next project will be getting a Sharnoa VMC running with an OAK board. It runs Siemens 611 AC servo drives and has an ATC. Sharnoa doesn't operate in the states anymore and has never responded to any emails I've sent. I don't have schematics for the machine so I expect it to be a long term project... It works but the controller (Tiger 7) doesn't run standard ISO g-code and the lack of support is a worry. We will see how it goes.
First decision- keep the ATC or get rid of it? I really wish there would have been a way for me to keep it in service but I use the machine in my business and needed it making parts. Since my parts are short lengths, gang tooling is an option. I'm not experienced with macros and this turret was controlled by a hydraulic motor, a ton of contact sensors, and an encoder. Not a challenge I was interested in facing.
I have a 3-axis CNC router that runs Mach3 as the controller and Gecko 320's to drive the Fanuc 5m servos. I figured I'd do the same with the lathe since it was running Fanuc DC servos. It worked..on occasion. I'd regularly lose communication with the smoothstepper and spindle control was a pain. After a lot of troubleshooting and parts replacing, I went a new route. I got an Acorn and DMM DYN4 1kw AC servos.
I really like how thorough the Centroid schematics are and Marty has some great videos on getting this setup (DYN4 to Acorn) up and running. Once I had all the parts, it didn't take more than a couple days to have the machine running reliably. Any questions I had were answered on the forum within a day or two.
Machine Specs-
Daewoo Puma 6
10hp spindle motor with Delta VFD-B
Hydraulic chuck (great for programming a bar puller)
Hydraulic tailstock
Next project will be getting a Sharnoa VMC running with an OAK board. It runs Siemens 611 AC servo drives and has an ATC. Sharnoa doesn't operate in the states anymore and has never responded to any emails I've sent. I don't have schematics for the machine so I expect it to be a long term project... It works but the controller (Tiger 7) doesn't run standard ISO g-code and the lack of support is a worry. We will see how it goes.