{"id":643,"date":"2021-03-12T10:44:00","date_gmt":"2021-03-12T18:44:00","guid":{"rendered":"https:\/\/cinemagear.com\/blog\/?p=643"},"modified":"2021-10-06T10:48:12","modified_gmt":"2021-10-06T17:48:12","slug":"restored-parvo-pan-tilt-head-and-tripod","status":"publish","type":"post","link":"https:\/\/cinemagear.com\/blog\/2021\/03\/12\/restored-parvo-pan-tilt-head-and-tripod\/","title":{"rendered":"Restored Parvo Pan Tilt Head and Tripod"},"content":{"rendered":"\n

Parvo pan and tilt head restored and waiting for its camera! Now that I\u2019ve had my hands on all the bits and pieces that make this unit pan and tilt, there are still a few very interesting mechanisms that make this head unique. Our 2nd photo shows one of the most interesting assemblies; the jackscrew that raises and lowers the tilt axis. The designers chose a combination of split nuts riding on square threads between two pointed centers, and a set of spring-loaded drive axles to control backlash and make the tilt axis run very smoothly. You can see in photo 3 how that all came together. The split nuts ride on the jackscrew and lift the tilt head on the two axles.<\/p>\n\n\n\n