Voronoi Lamp shade 280mm diameter 164mm high, 30mm hole for lamp holder. Designed for my sons bedroom, where its printed in transparent blue filament. Two designed one open hole that projects the pattern out, one holes filled with thin layer that defuses the light. Its quite chunky voronoi so its pretty sturdy and prints easily. Print out of heat resistant filament (ABS,ASA etc.) or use low wattage LED bulbs so should it be safe with PLA/PETG, i.e. don't be stupid and burn your house down. Needs a 300mm bed to print comfortably. ~54 degree angle for overhang quite easy for most printers with decent cooling. Looks good with transparent filament as well as opaque. I Printed 0.2 but should work fine for fatter layer and/or a 0.8 nozzle. I printed with 4 walls as it reduces print time as has less internal supports and more continuous moves. For bed adhesion I advise external and internal brim ~5mm no other supports needed. Do a temp tower to ensure you don't get too much stringing etc.