T-Handle Knob

Decided to build a LED swing arm work flood lamp and needed some knobs that I could loosen and adjust the light to another position with out the use of a wrench. The normal round knobs just didn't feel right plus I wanted something with a little more torque to really hold the flood light steady, so I designed this. The hardware I used was 5/16" so I designed it to use a 5/16" nut. Printed it inverted so the only supports needed were the inside area where the nuts goes, I also printed this with 1