Modular Ball Joint Base

thingiverse

I designed this modular, adjustable base system to test 3D printed threads, but it quickly evolved into something much more versatile. I aimed for simplicity in design, with a minimum of easily printed parts and a maximum of flexibility in adjustment. I achieved the first goal well - the simplest versions of this joint require just three easily printed components, while the more complex version still only needs four. The range of movement is impressive as well. The simpler joints can bend from straight to roughly 50 degrees, while the panavise-style base can rotate up to 90 degrees with both styles allowing for free orbiting. A simple twist of the nut on any of the bases securely locks the joint in place. Attaching other bits and pieces is done through the threaded studs attached to the balls. The studs and the threaded version of the ball are modeled with a 1/2" ACME thread, making it theoretically possible to attach anything with that thread to the base. This opens up endless possibilities for customization, such as light stands, phone mounts, or even positionable third-hand systems. The parts for the simple joints are interchangeable, using the same nut on both bases and the same-sized ball across all three. To create a simple base, you'll need to print the simple ball joint base and simple ball joint base nut files, along with either the ball threaded stud file and the ball joint threaded ball files or the ball joint one-piece ball. For the panavise-style base, you'll need to print the panavise base, panavise base nut, panavise base captive lock, and one of the two ball files. I'm working on additional accessories to enhance these bases, including a clamp to hold a flashlight that threads into the stud on the ball, as well as a coupling to add a threaded end to a wooden dowel for longer arms without long print times. A phone mount is also in development - stay tuned!