Crane Arm

This is one arm for an operating crane that I am building. When finished, it will stand approximately three feet tall. You need three of these arms for the boom of the crane. It's a derrick crane, modeled after the old Unit cranes from the 50's, although the arm itself it kind of generic. The holes on the connection points are scaled to fit a piece of 1.75 filament.
Eventually everything will be motorized and controlled with a small controller. Great to be used for training for hand signals and crane safety.
Printed at 20% infill with PLA. You can't use tree supporting, once the supports are more than 2 inches tall the printer starts to miss them. Use wall supports and print flat, works fairly well.
When I get the rest of the pieces designed and uploaded I will add the links here.

End piece: https://www.thingiverse.com/thing:3921644