For example if the training inputs overshoot an axis
limit, the axis will in the meantime have properly decelerated and stopped
on the axis limit. The training input at that point will re-cycle mod the
index, so that when the training wheel is stopped and direction reversed,
the axis will then accelerate off the axis limit in perfect sync with the
training wheel. In fact a calibrated marked training wheel may be used
which will indicate exactly the position of the motion system when at rest.
If for example, the training wheels are spun faster than the axes can respond,
the axes will fall behind, but when the training wheels are slowed, or
stopped, the axes will catch up then decelerate to the exact position of
the training wheels.
A digitizing or inspection system can be easily constructed
using the SS4544 system. The Z-axis could be used for the camera mount
for focusing, and X,Y and R used for positioning the tool in X,Y and Theta.
X&Y could be linked to the training wheels and a foot-switch input
on the spindle feedback input bit for digitizing.
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Testra Corporation 1201 N. Stadem Drive Tempe, AZ 85281 Ph. 480-560-6141 Fax: 480-907-2876