Proof of concept of double rotation in 1x1 space
BlockTalk Summary
A LEGO enthusiast has created a proof of concept for a double rotation mechanism within a 1x1 space, a feature not commonly seen in LEGO orreries. This innovative design allows for a more realistic representation of planetary rotation, specifically addressing the difference in rotational speed between a planet's poles and equator.
The creator achieved this double rotation by stacking cylinder pieces with pin holes and placing the "sun" model on top. This setup relies on gravity and friction to function, allowing rotation in only one direction. The designer noted the importance of making the top element as heavy as possible for optimal performance. While the aesthetic of the "sun" model was slightly compromised in this iteration, the core functionality of the double rotation was successfully demonstrated.
The original poster realized they had the order of rotation reversed, with the equator spinning faster than the poles. This highlights the iterative nature of the design process and the ongoing refinement of the concept.
This proof of concept opens up exciting possibilities for more accurate and dynamic LEGO models of celestial bodies. If you're inspired to experiment with this technique, you might find a LEGO Technic set helpful for exploring gears and mechanisms.
Every lego orrery I have seen uses a simple sun model with one rotation. In reality, the poles spin slower than the equator. It is trivial to pass two rotations if you have the space, but I tried to model this in a 1x1 space for aesthetic reasons and got something to work. It's possible by stacking cylinder pieces with pin holes and putting the sun on top. Obviously it only works because of gravity and friction, so only in one direction and you want to make the thing on top as heavy as...
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