Just finished drilling the 2020.

Just finished drilling the 2020. Before I started the build I was afraid this part would be a bit challenging. I used 6mm drill bit, two 6mm bearing, (four will be ideal), and a printed Guide. I had to pressing the bearing down so that they won’t pop out when working, should find a way to fix the bearing along Z axis.

Great idea, well done. I used printed drill guides for HercuLien, but never thought about a bearing as the axis. Very smart.

Thank you. I like your printer design more when I began the build, the idea of securing the 2020 like this make the assemble a lot easier, fixing the bearing holder into place was very straight forward.