On 6 January 2011 13:33, andy pugh <[email protected]> wrote:

> Does anyone know where this is documented? I have googled but come up
> blank so far.

No worries, found it via a nice chap on CNC Zone.

It turns out to be a simple 4-bit Gray code.

-- 
atp
"Torque wrenches are for the obedience of fools and the guidance of wise men"

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