Shizuoka Milling machine
Controls upgrade project.
My Shizuoka 3B-V Vertical machining center was built in 1985 and originally had a FANUC 6M Control. The control was very antiquated and difficult to program. The machine has a 28” X travel, 15” Y travel and 16” Z travel. It weighs in at about 11,000 pounds.
It’s a really well-built machine and I wanted to modernize it with a PC-based control. After searching the Internet and looking through several CNC machining forums I decided to work with CNC4PC for this conversion.
The original control system components and wiring were completely removed and replaced with components purchased from CNC4PC.
I retain the original FANUC servos and encoders.
A fourth axis was configured using a stepper motor and drive from CNC4PC. This 4th axis can be used for regular milling or laser cutting (which I will discuss later).
I chose MACH3 for the control software. I retain the original FANUC servos and encoders. Mach3 runs on a 21-inch “all-in-one” touch screen computer running windows 10.
Below are a couple photos and vidio of the 4Th axis
Fourth axis in operation
After the conversion was completed I decided to add laser cutting capability to the machine.
My first CO2 laser tube installation utilized a Series of mirrors. The alignment was Difficult and each mirror absorbed 1.5% of the laser power. I decided to eliminate all the mirrors and mount the laser tube vertical with the laser beam pointing straight down at the workpiece with no mirrors to align. The laser tube is 73 inches long so my high ceiling made this installation possible.
I would like to thank the following people for their help with my project:
Arturo with CNC4PC.COM,
Andy with WARP9.COM,
Tweakie with WARP9.COM,
Marco with Lightonjects.com
The laser is a 180 W RECI W8 tube. The power supply is also from RECI. The laser tube cooling water is chilled via a 1600W Water Chiller. All the laser components were purchased through Lightobjects.com.
At full power the laser will cut 5 mm (0.20”) plywood at 140 in./min.It will cut 1/2 inch cast acrylic at 15 in./min.I have cut 3/4 inch MDF at 15 in./min at 80% power. It’s interesting to note the width of the laser cut is only 0.005”
Although the laser tube is mounted directly to the machine, It does not interfere with using the machine for its intended purpose; milling.
I would also; like to thank:
My son-in-law, Randy Rue, for writing the MACH3 Gcode laser post-processor (this post-processor is on GITHUB).
Seth Madore, Liberty Machine, Inc. for writing the Fusion 360/Mach3 post-processor.
And last but not least, I’d like to thank my son Mike for his patiences with my unending electrical related questions.