I made this as a temporary fix for my daughters bed in which a couple of the slats had came off the flimsy side rail. Since it was a trundle bed with a mattress under I needed something I could adjust to the right height, and with a wide base to distribute weight onto an uneven surface.

The threading is set up to interfere with each other so there is a strong friction grip, it is solid even when barely screwed together. This was way stronger than it needed to be, it can hold my body weight and probably much more.

Printed in ABS for stiffness, PETG will probably work but I would avoid PLA.