Fast fixture

thingiverse

One incredibly valuable device I employed a while back when using pad printing. Extremely useful in scenarios requiring rapid lock/unlock functionality, especially in conjunction with significant external forces. When unlocked, it allows free XY movement and unrestricted rotation within a substantial range (in this instance, 50-60mm). When secured, however, the fixture becomes virtually unshakeable, making it perfectly suitable for even milling on components attached to the fixture - it can withstand considerable forces without issue. The device's locking mechanism is surprisingly simple: by merely screwing and unscrewing a single screw, the fixture can be locked or unlocked with incredible speed, all within a sleek design. A brief animation illustrating its operation is available at: https://www.youtube.com/watch?v=ti3kszMwe2I For those interested in replicating this device, I've included SolidWorks design files and IGES models. The secret to the fixture's remarkable functionality lies in its compressing ring, which features a slant edge that engages with the sharp edge of the screw. As the screw is tightened, the slant edge exerts substantial force downward, transferring it to the top plate. The result is a rock-solid lock created by the friction between the two plates. Initially designed from aluminum, the fixture can also be 3D printed using certain components. I highly recommend manufacturing the compressing ring on a lathe from steel to maximize its effectiveness. To further enhance the fixture's performance, applying a small amount of tacky oil between the top and bottom plates facilitates smooth movement when unlocked, allowing for precise positioning of details before securing the fixture in place. Although the working prototype was unfortunately lost over time, the design remains intact, and I'm delighted to share it with you now.