Sieg C3 DRCD interface or pinout

[Roger HartParticipant @rogerhart88496]

A month or two back I bought a used C3 type lathe as a cheapish way to get back into some lathe work. This machine had SIEG DRCD readouts on both slides – but not working.

Changed the press buttons, clean up and new batteries and seemed to work OK.

But they seem hard to read and one has gone a bit twitchy. Inside there is a 14 way ribbon cable between the sealed up sensor and the LCD electronics. Does anyone know what the interface is and is it practical to bring this out to an external processor and brighter readout for my poor old eyes.

TBH probably not worth the bother, perhaps a reversion to dials kit from ARC is the way to go for this occasional user. But nice to know if possible to interface to the sensor.

[Roger HartParticipant @rogerhart88496]

[Ketan SwaliParticipant @ketanswali79440]

The sensor, reads a specific graduated disc. The disc is similar to the type used for digital callipers, but circular and with specific graduation for each turn. I can’t remember what the specific measure it is designed to read.

In any case, I don’t think that anyone has managed to connect this to any external processor. Even if they did, this particular type of DRCD unit had reliability issues due to swarf/liquid ingress, so it was removed from ARCs range a very long time ago.

Ketan at ARC

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