It is still difficult to rotate heavy objects with LEGO and hence I designed an ultra compact LEGO compatible ball bearing. it is only 6 studs wide and two studs high. I also added two lift arms. You can put a worm wheel in there to rotate the turn table. The 3D model is available for download from Autodesk. You may need Fusion 360 to work with the model.
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- Assembled model
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- Top view
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- 3D Printed versions
This ball bearing is so small that you need a very high resolution printer to get good results. Some of the wall thicknesses could be to small to get printed on low quality printers. I will now be working on a slightly bigger version that can be printed on more affordable printers.
A technical drawing is available:
LEGO Compatible Compact Ball Bearing Drawing by Christoph Bartneck on Scribd
About Me
I am an Associate Professor (Reader) at the HIT Lab NZ, University of Canterbury.