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V2 - Gear Housing: Improved Meshing and Reduced Size
With V2 I finally got around to modeling some housing to keep the cross-spherical gear and monopole gears meshed together. The gear meshing process was challenging but I believe the tolerances in this version are a great balance. Everything is designed to be press-fit though tight � I had to use work gloves to push some of the dowels in. For added safety you may want to glue the components after assembly.
Aligning the gear teeth during assembly can be finicky. The easiest method I�ve found is to align the 'eye' of the cross-spherical gear with the 'eye' of a monopole gear then mesh the gears together until all alignments match. The ABENICS magic will take care of the rest!
Gear Housing
The housing is printed in two halves and secured with dowel pins which are the same pins holding the halves of the cross-spherical gear together. Each half features a print-in-place bearing to mount the monopole axles. To avoid excessive play the bearing tolerance is tight so make sure to break the seal and spin it a few times after printing.
Improved Meshing
By revisiting my OnShape FeatureScript code I doubled the resolution of the monopole gear hobbing process and added relief to achieve a true mesh between gear surfaces. The result is an extremely smooth interaction between gears when printed even in reduced sizes.
Reduced Size
I�ve scaled down all models including reducing the pitch diameter of the cross-spherical gear to 35mm. The new size is compact enough to fit comfortably in your hand making it an addictive fidget toy.
V1 - Original Model
V1 is much larger than V2 and does not mesh properly.
For more details on the development process of these gears visit the original ABENICS paper here.
This model was originally created to explore the OnShape + FeatureScript tools and it served as an exciting project to experiment with gear meshing.
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This 3D-printed model is designed by Cameron Pettit. You can purchase this item in our store and we accept bulk orders. Explore more models from Cameron Pettit on MakerWorld.
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This is an example of an innovative and functional fidget toy made using advanced gear design techniques. Get your hands on this model and start exploring the world of ABENICS gears!
Product Specs:
Print Time: 6.1 h
Filament Used: 72 g
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