This is remix of the Holographic Tileframe by Zack Freedman prints in one piece, requires no glue or assembly. Made adjustments to the star design so that it no longer requires support.

With proper cooling the whole part can be printed WITHOUT SUPPORTS! That's your best bet! Enable special bridge settings in your slicer (slow down, increase cooling for bridges).

If you are weary of the long bridges (shouldn't be!) with a setting of 60 degree overhang angle limit it will print with easy-to-remove, minimal, "normal" supports (see sliced cura screenshot). But, again, try first without supports, you will be surprised (either way!)

No brims, 50-100% infill. I found it sturdy enough when printed out of PLA+ or PETG.