[[http://pminmo.com/]]

[[http://www.fromorbit.com/projects/picstep/]]

[[http://www.shumatech.com/support/chinese_scales.htm|Digital caliper interfacing]] and [[http://www.compendiumarcana.com/caliper/]]


[[http://www.shumatech.com/products/dro-350/index.htm|DRO]]