so the encoder must have 1000 ppr, whichever way we calculate it.
if we like,we could also use a 500 ppr encoder with a 2x logic multiplier.
to measure 10 inches of to 0.01 inch resolution: total count = 1000;
resolution = 0.01 inch. if the encoder makes one full over the total travel,
a 1000 ppr encoder can satisfy this requirement.
at full travel, the encoder and counter will read 9.99, which is within the stated tolerance of 0.01 inch.