This can range from the recreation of a sample part, that can easily be measured with typical hand measuring instruments (micrometer, Vernier, slip gauges etc.), right through to measuring a free form part that will need to be scanned using our Nikon arm. A lot of the parts that we reverse engineer do fall into the first category and we just have to make allowances for wear and estimate what the original part tolerances were, by understanding what the use of the part is. This applies to brand new, and worn, sample parts as you can measure the actual sizes but you’ll never know for sure what the dimensional tolerances were. Luckily, the accuracy of the machines we use to recreate these parts allows us to produce them to within microns of the sample parts.