Encoder location

When driving a leadscrew via a timing belt and closed loop servo,
should the encoder go on the motor or on the screw?

I feel like it would be more accurate on the screw, since belt stretch
would be factored out.

However any stretch present might lead to instability, and it would
be easier to mount it on the motor than on the leadscrew.

Chris Stratton

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Christopher C. Stratton
Engineer, Instrument Maker, and Horn Player
ccs@... 617 628 1062
http://web.mit.edu/~stratton/www/brassbuild.html