5/16th Nut Clamp for Drybox
thingiverse
Bummster's Drybox is fantastic but if your spool bearings are not smooth, the whole threaded rod can rotate, unwinding the other spools. This is a remix of the rod end-clamp that will (in theory) hold a nylock nut, locking the rod in place. Alternatively you could place a normal nut both the inside and outside and sandwich them together. Either way, you probably only need this on one end of the box. I also rotated the screw holes 45º so that there are no screw threads or heads directly above the nut seat.
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