Overhead Filament Support Hub Set

A while ago, I printed a set of overhead filament brackets from here: https://www.thingiverse.com/make:541868 I have been running it with a bare rod to support the reels of filament but thought it would be much better to have smoother rotation. Hence I designed this set of hubs.

The threaded centers will fit on a standard 8mm rod, threaded or not. I designed lock nuts too, but I have found they are not really necessary in my setup, hence the optional shorter threaded center.

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