Ghostbusters Giga Meter Dome Mechanism

thingiverse

I designed these mechanical components to enable the Ghostbusters Giga Meter's lit-up dome to remain illuminated and spinning. The crucial aspect here is the seamless connection between the outer and inner rings of a standard 22 mm skateboard bearing. The dome and most Giga Meter parts I printed are based on ERankLuck's outstanding design. I also utilized an updated face plate from TheLegendOfMart, while WindDrake provided the ear movement components. The wiring of the lights is rooted in Heavy Props' tutorial on Facebook, with one exception: instead of gathering resistors at the dome's center, I connected them together to be pressed against its inner surface, allowing space for my custom-designed drive mechanism. The modified dome features a countersunk hole at the top for securing it to the inner mechanism, which is ERankLuck's design. Creating this mechanism required me to manufacture a custom 2 mm GT2 belt (videos on YouTube can guide you through this process). My parts rely heavily on 22 mm skateboard bearings, with the key being the continuity between the outer and inner rings. In my design, the inner rings and axle remain stationary, while the outer rings – attached to the dome and LEDs – spin freely due to the electrical connectivity provided by the bearings.