v1 is with 6 feet to reduce friction; v2 is with 2 layers of PETG without foot.
To me they both feel equally slippery on flat desk surfaces.
I've used the original design for a while and think it could be even better if printed in TPU with less contact with the desk for lower friction when sliding, so this is my solution.
Made the whole disk mainly in one piece with 6 individual feet, so there's more room for TPU infills instead of walls to make it softer. Printed with 95A TPU, 3 walls, 3 top & bottom layers and 22% infill (I'd printed it in 15% and the surface wasn't smooth due to lack of infill support for the top layers. 20% also felt a bit rough) with bed temp set to 40℃ to avoid warping.
Maybe you can push for 2 walls and 2 top & bottom layers to make it even softer with the same material. Let me know if it's actually doable.
The author remixed this model.
Lowered friction with 6 add-on feet and made it into one-piece.