GPU anti-sag -remixed-

thingiverse

I took a closer look at the fit and noticed it was a bit loose, so I tightened up the threads on the top pillar to get a better seal. I also removed the magnet recess on the bottom piece since it wasn't necessary for my build. Here's the design for anyone who might find it useful. The 97.5% version gets pretty tight when most of the threads are engaged, while the 98.5% option is probably best if you need to have the pillars mostly collapsed.