This is an adjustable arm for this 12" LED lightbar:

https://www.amazon.com/gp/product/B00LAAUCZ2

It clips on to a 20x20 extrusion - the sort used in most Creality printers and knockoffs like the Longer LK1 and Alfawise U20. You will need some 20mm long bolts (I used M3, but M4 will also fit) and appropriate nuts and washers. Print with tree-style supports set for 85deg threshold.

EDIT 1/15/21: A couple people have tried to tip me for this. While I appreciate the sentiment, I definitely don't deserve money for a remix that took maybe 10 minutes to make in tinkercad. Please either tip the original creator (hillbille) who did the hard work, or pay it forward in some way.

Print Settings

Printer:

Longer LK1

Rafts:

Supports:

Yes

Resolution:

Infill:

30%

Filament:

solutech PLA

Silver

Category: 3D Printer Accessories