The table is not all wood, of course; metal bushings and pins are used in the scissor mechanism, and the lift drive is a stout Acme-thread screw and nut. We’re impressed by [Marius]’ joinery ...

ACME Screw ACME screws have a very specific thread geometry that directly contacts the nut and provides linear motion through direct sliding friction between nut and lead screw. ACME threads are ...

More sophisticated printers use ACME threaded rod or trapezoidal threaded rods. These are made for this type of service and have thread designs that minimize things like backlash. They typically ...

specific thread designation (UNS, UNF, UNC, NPT, ACME, Buttress), part tolerances and gaging frequency (shop vs. high volume production). Thread gages can be one of any number of types of gages. These ...