3D printed Grinhill drive in the news

Years ago, ES Australian member "grinhill" built a non-hub drive, where a small 63mm diameter RC motor and ESC had powered a belt-drive to the rear wheel. (March 2009, it's so old that the post ID number at the end of the link has only four digits...9172)

https://endless-sphere.com/forums/viewtopic.php?f=28&t=9172



There is a youtube of a UK builder who made the mount and the pulley from a 3D printer.

https://youtu.be/9rIIJbDkpN8?t=74

Now? there is a youtube of a guy who documented his journey to copy the youtube UK builders system.
https://www.youtube.com/watch?v=TiAlt6_cNCQ

[youtube]TiAlt6_cNCQ[/youtube]

Kind of like the Aden system

interesting but that RC motor still sounds like a runaway singer sewing machine.

I saw the original video of this and wanted to build one.

The design is on thingiverse but the files are not in an editable format and the designer does not want to make changes for other bikes.

It is unfortunate since it means you will have to redraw most of it from scratch just to change the mounts.