Quote:
Originally Posted by tr6scott
We saw the same issue last year on our elevator, as we pushed the pid to get more speed out of the elevator, we had trouble tuning the system at higher speeds. The issue was not surgical tubing slipping, it was some allowed twisting when elevator changed directions when stacking at high speeds.
We replaced the surgical tubing with 1000psi 1/4" fuel line from autozone, and was able to tune system just fine at high velocity change rates.
I did not believe it that a ball bearing encoder could flex the surgical tube, but the system controls was significantly less stable than with the fuel line.
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Did the same thing on all my test robots.
Works adequately and allows me to use a wider range of encoders.
Less picky than encoders with the encoding wheel on the assembly shaft as well.