Воротник поперечного рычага для фонарных столбов

Adds an adjustable and removable cross arm/crossbar to standard 3'' light posts

We recently installed new lamp posts in our yard, but unlike the old ones they didn't have cross arms. A bit of an issue now that we want to hang Christmas decorations, so 3D printing to the rescue.

This collar is sized for standard 3'' lamp posts. It slides around the post and is secured with a (3D-printed) screw and nut. 

The shape of the cross arms is hexagonal, so no supports are required to print it but I do use some small supports to make the hinge fillet look nicer. See 3mf file for suggested orientation and settings. I recommend printing it in ASA or ABS, or at least PETG, to withstand the elements. Do not use PETG-CF or PC-CF. Carbon fiber filaments hate overhangs and bridging, and will result in a fused print-in-place hinge and a screw that won't work. Don't ask me how I know…

Be sensitive to how much you hang on the cross arms. They're plastic, not metal. I also added an aternate version that replaces the hinge with a second screw, which should add some extra resilience. I used the hinge version myself, because, print-in-place hinges…

STEP and Fusion 360 files provided to make it easier to modify the design.

If you like what I'm doing… …consider buying me a coffee. 

Filament: