A new control panel for a SIEG SX2P milling machine

esar posts on implementing an electronic control box for a SIEG SX2P milling machine. A project on macpod.net used a microcontroller but re-reading the protocol description, it seemed that it didn’t actually need a microcontroller. Instead it could be done with a set of shift registers.

It was a bit of a squeeze getting everything in, and no fun at all trying to get the last few screws and wires in place. In the box there’s the display PCB at the top, the original potentiometer board from the mill and a bare pot from the x-axis motor controller under that, then the two direction switches, then the original power and fault lights and a rapid feed button at the bottom. The original safety on/off switch comes in from the side, and an off-the-shelf control board for the x-axis motor is sitting on the bottom.

You can read more here and find files on GitHub.


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