One of the results of 2020 was the scientific work on the analysis of the error of the thread measuring system. Today our scientific paper “The analysis of the measurement system accuracy based on 2D laser optical micrometer when measuring API pipe thread pitch and height” was accepted for publication in a well known journal “Lecture Notes in Mechanical Engineering”. Looking forward to release later this year. For those interested, here is a photo of the results of the analysis of the image from the shadow micrometer while scanning the thread. Our other work can be found at