Ball Screw and Nut

It's not particularly useful, but it is kind of a cool demonstration of a recirculating ball screw and nut. Most ball nuts have several threads filled with balls and then a single long recirculating ball path. This version, however, is made up of three separate nuts, each with a single thread of engagement and with a short "jump-over" section to recirculate the balls. Each nut is formed by two clam-shell halves. When the three nuts are all assembled onto the screw, the jump-over sections for each nut (where there is no thread engagement) are counter-aligned. Three nut sections are the minimum to give stable support to the screw. Finally, there is a clamp piece that holds all of the nut sections together.This thing uses 27 airsoft pellets (6mm) for the ball bearings, and three 4-40 or M3 socket head screws to hold the nuts together. And as a bonus, the balls don't all fall out when you remove the nut from the screw!Print SettingsPrinter:UDIORafts: YesSupports:NoResolution: 0.1mmInfill:2