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'Digidial' remote display for lathe computer, 1982.

'Digidial' remote display for lathe computer, 1982.
3 3 c m
actual image size: 32cm x 25cm


Explanatory drawing showing the handwheel and transparent dial; the lead screw shaft; the LCD display and the printed circuit board with the light source, receptor and disk. The traditional engraved dials used on machine slides were difficult to read: 'Digidial' was designed to overcome this problem. The device uses a phot-cell, which registers the amount of light through the transparent dial. Movement is also registered and displayed on a remote screen in addition to the LCD display.

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© Science Museum / Science & Society Picture Library

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