One thing I have learned over the years is that programming the automatic cycle is sometimes the easy part. The machine starts in a known condition.You tell it what to do.It moves through the sequence.Everything happens in the order you expected. Then somebody asks: “What happens if it stops right here?” And suddenly the simple … Read more
What CNC machines—and an established part of the automation industry I should have paid more attention to—taught me about building more flexible machines I have spent much of my career programming machines. Some have been conventional PLC-controlled machines built around sequential operations. Others have been CNC-style systems where the machine programming and the part programming … Read more
The laser source may be the heart of the system, but beam delivery, motion, controls, safety, process knowledge, and maintainability determine whether the machine actually succeeds. Fiber lasers have changed industrial manufacturing. They are compact, efficient, reliable, and increasingly available in power levels and configurations that would have been difficult to imagine just a few … Read more
Automation Notes What If We Standardized the Control System Before Building the Next Laser Machine? The machine should be custom. The control foundation does not always have to be. One thing that has bothered me for years in custom machine building is how often we solve the same control problems over and over again. A … Read more
When we buy a new laser cutting or welding system, most of the discussion is understandably about what the machine can do today. How fast will it cut or weld? What tolerances can it hold? What materials can it process? How much production can we get through it? But there is another question that may … Read more
An alarm can be technically correct and still be almost useless to the person troubleshooting the machine. I have a confession. Over the years, I have written some machine alarms that probably made perfect sense to me while I was programming the machine—and weren’t nearly as useful to the person who eventually had to troubleshoot … Read more
One subsystem that has caused me more commissioning trouble than people might expect is the cutting gas system.One lesson I learned building laser cutting machines is that saying:“I need 300 psi nitrogen.”doesn’t really define the requirement.What you actually need to know is:“I need this pressure while flowing this much gas.”Laser cutting—especially high-pressure nitrogen cutting—can require … Read more
Why higher programmed speed does not always mean more good parts per hour By William Kane | Manufacturing with Light (MWL) Eventually, almost every successful production machine gets the same request: “We need more parts per hour.” With a laser cutting machine, the first reaction is often obvious: increase the feed rate. If the process … Read more
Modern motion controllers are amazing. In laser processing, advanced algorithms can smooth corners, reduce vibration, improve path following, synchronize laser firing, and help squeeze more performance out of a machine. Features such as input shaping, look-ahead, contour smoothing, and frequency-response-based tuning are real tools that can make a good machine much better [1][2][3][4]. But they … Read more
