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Gday Sam
There is a lot more info on the original CN thread ( tho the new site format is now painful to use ), incl some data plots of the encoder units.
The tracking looked very good, but there was a hi freq ripple ( about 2 arcsec pk-pk ) due to ( what one poster who has done a lot of work on encoders states is ) an encoder integration feedback loop problem.
The beta testers have just received new boards and firmware to test with, so everyone is just in hurry up and wait mode.
Andrew
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