This is a set of four LEGO®-compatible Mecanum wheels for your omni-directional robot!
The wheels have a diameter of five LEGO® modules (40mm) and a with of 2 modules. They work wonderfully on soft surfaces (carpet or such) but will slip on hard surfaces.
NOTE: The picture is one of the same model 3D-printed elsewhere. The color in the picture is not available on Shapeways.
EDIT: From now on, the 3D model is made available free of charge, according to the terms of the
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
DISCLAIMER: This product is in no way endorsed by nor affiliated with the LEGO Group. The LEGO® and LEGO TECHNIC®trademark are only named here to suggest this product is compatible with the LEGO® line of toys. It is an original design and not a copy of a branded product.