Re: [CAD_CAM_EDM_DRO] Elastic belt stretch, lead screw twist, and far end encoders

> In other words, the shaft
> twist is present as an error in all cases: When the encoder is at the pulley
> end, the table will experience error from shaft twist when the nut is far
> from the encoder, and vice versa when the encoder and table are at opposite
> ends.
> Comments?

It seems to me that if the encoder is on the undriven end, it will have zero screw twist error, since there is no load on the screw
between it and the nut on the carriage.

Ed Koffeman