1st thing I've ever created in tinker cad. It a led light bracket that goes on the top rail. It for the 18 inch Hyper Tough led cabinet light sold at Wal mart. I printed it on my ender 3 V2 I used 15% infill.

I redid the design for version 2. I has slots at the top so you can now slide it over the rail with out removing the bolts. V2 is better looking, Uses less filament and takes less time to print,