Industrial CNC controller retrofit

[Jerry] had a beefy CNC lathe whose controller wouldn’t respond. He cracked open the case and found a large scorch mark surrounding one of the servo controllers. Rather than just replace the IC and still be stuck with a 23-year-old controller he decided to retrofit the machine with modern controls.

The journey from a brick of steel to an incredible machine is fascinating. Using a combination of commercially available boards like the ModIO controller and custom-built circuits, he cleaned up control signals and give life to the lights on the original faceplate. The machine is now working beautifully with a new monitor, automatic oiling, and wireless connectivity.

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