{"id":6231,"date":"2026-11-02T18:00:48","date_gmt":"2026-11-02T09:00:48","guid":{"rendered":"https:\/\/donguri3.net\/server-tech\/3dprint-collet-ball-joint-2\/"},"modified":"2026-11-02T18:00:49","modified_gmt":"2026-11-02T09:00:49","slug":"3dprint-collet-ball-joint","status":"publish","type":"post","link":"https:\/\/donguri3.net\/en\/diy-repair\/3d-printer-cnc\/3dprint-collet-ball-joint\/","title":{"rendered":"Designing a 3D-Printed Hand-Tightened Collet-Style Ball Joint"},"content":{"rendered":"

The arm joint built previously<\/a> made it possible to firmly fix front-to-back folding and height adjustments using 10mm square pipes. However, with the base completely fixed, there was a lack of flexibility to pull the arm out diagonally or swing it left and right to match the layout of the workspace.<\/p>\n

To use a USB microscope comfortably for PCB work, a joint is needed at the base of the arm that allows for a certain degree of tilting and rotation. While adding a commercially available metal ball head was an option, it would lengthen the connection part with the 10mm square pipe and reduce rigidity. Therefore, I decided to 3D-print a custom ball joint that could be directly connected to the base.<\/p>\n

\"Collet-Style<\/a><\/p>\n

Concept of a Spherical Joint with Fine Angle Adjustment at the Base<\/h2>\n

The objective this time is to place a compact ball joint at the base of the arm, allowing the upright angle of the entire arm to be freely and finely adjusted according to the conditions of the workbench.<\/p>\n

As a future expansion, I have a concept to attach a DIN quick-release shoe to this base section, developing it into a structure that can be attached and detached with a single touch to a tripod or clamp socket. Therefore, in this prototype, I will first focus on establishing a robust collet chuck mechanism that can reliably hold the ball.<\/p>\n

Specifications of the Spherical Joint for Secure Hand-Tightened Locking<\/h2>\n

The goals set for the design are as follows:<\/p>\n