Big ball joint
thingiverse
I've created this elaborate swivel device for suspending our projector onto the ceiling. The ceiling features a gentle incline, measuring only a few degrees. Furthermore, the projector requires a slight forward lean in order to project an ideal image onto the screen. This swivel mechanism allows for sufficient flexibility to accommodate these requirements. The diameter of the mounting plates is 10cm. The ball itself has a diameter of 3.5cm. The distance between (and including) both mounting plates measures 7 cm. The relative tilt from one plate to the other amounts to approximately 10 degrees.
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