This is a small holder I designed to hold wall art where I was not able to conceal. It's made in two parts. 1_fixes to wall with nom. 3mm screw and has a small grove at top (twist to suit which end of world you are at!). Finished with twist on dress cap. This just tidies up the otherwise visible fixing. I have the groove at 1mm which works well for fine fishing line.
Printed @ 0.15mm quality with clear PETG is my preference. This has 0.2mm tolerance which for me works fine. The item can be scaled of course to suit the application.
The author hasn't provided the model origin yet.