Desk Cable Management Hole

Super useful model, will use it for my workshop table.
Printed out nicely using supports on the build plate, in Overture white PLA+

Overall nice design, but rather problematic in terms of print quality, at least when using PETG. First, you have to use supports to print the protruding surfaces (when printing upwards, only the outer brim, when downwards, both outer and inner brims require supports), which would be fine if it wasn't for the fact that it wastes a lot of material in comparison to the base's weight itself (13g w/ supports, 8g w/o supports). So, to try to limit that waste a bit, I tried printing it downwards, since that would require only +2g for supports. It turned out it's impossible to maintain good quality of such print (see attached photo with 3 bases printed, these are my 3 attempts of doing so, with different paint-on supports applied). Maybe PLA would be a better material, or maybe the author has a better way of printing these which they could share with us to improve the quality. As for the top piece, it's fine, however since there's no locking mechanism of any sorts, it's quite easy to pull it out of its place when moving the cables around. Maybe a secondary protrusion would help with this, but I'm not sure if it's possible to print it that way (judging by how problematic the supports are already). But as I said, it's a nice design, really similar to what you can buy in hardware stores, but if you don't need this exact looks, it's probably much easier to just print one of the other models with a flat top.

Hey I did not see the original inch DIA for this. What size is it? Is it scalable?
Thanks