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Archive for November 22nd, 2018

LinuxCNC 2.7 vs. Logitech Joggy Thing

The old Atom running LinuxCNC for the Sherline finally stopped booting, so I popped the Optiplex 760 off the stack and did a live-USB trial run. The latency / jitter worked out around 25 ┬Ás, slightly worse than before, but still Good Enough, and the StepConf utility coerced the motors into working OK.

What didn’t work was the old Eagle-to-HAL code defining the Logitch Gamepad as a Joggy Thing to allow smooth joystick jog control. Well, stuff changes over the course of eight years, but, in this case, the fix turned out to be a one-liner: the probe_parport module isn’t needed nowadays.

With that out of the way, it runs fine:

LinuxCNC - Sherline Mill - Logitech Gamepad

LinuxCNC – Sherline Mill – Logitech Gamepad

The INI and HAL files defining the Sherline configuration as a GitHub Gist:

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