Spool Holder - No Bearings

Remix of a Bearingless Spool Holder from mike_vom_mars https://www.thingiverse.com/thing:5872178

Slimmer cuts at least 30 or 40% printing time compared to the original compact version. Photos also show the comparison to the original compacts.

It's also fixed, which means it isn't adjustable (duh), but I didn't think that much adjustability would be necessary for most 1kg spools. Because of that, it prints faster and is much more sturdy.