Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4721986.

An easy to print, semi-convenient to assemble LED strip panel. Fits 11x 150mm segments of aluminum u-channel to hold LED strips and dissipate heat. Be careful folding the LED strip and tucking it into the recess, you may cause individual LEDs to dim or fail.

BOM

4x M3 bolts - 16mm 4x M5 bolts - 10mm 4x M5 nuts

U-Channel: https://www.amazon.com/gp/product/B073W9PCK3

LED strip (cut into 11 pieces, 150mm in length): https://www.amazon.com/gp/product/B00XH59VG4

Adjustable power supply: https://www.amazon.com/gp/product/B07JZNPM3W