...I've gotten up from my chair with intent to make it down there to your Hive, only to set back down with realization I'd probably end up getting in the way while twiddling my thumbs.
Don't really have any projects currently going on to drag down there. I do have a staynless 4 start 8mm leadscrew that I'd like to gently turn one end down to 5mm. Is there anything down there that would facilitate this?
Sounds like you need the use of a Lathe. The MakerHive does not yet have one, but we have a mini mill. If you bring it down I'm sure we could figure something out. Assuming it's not a harden steel lead screw.
Some things are meant to be closed. Your mind isn't one of them.