Christmas bell Lithophane uses an LED tealight to illuminate. I print without supports on an Aquila C2. 100% infill or 99 walls, Block the top to use higher infill than the base, usually do 10% on the base and they come out good. Push fit disc for holding the tea light needs glued to the bottom. If you scale up, a new disc will need to be made as the hole that holds the light will also scale up. 100mm tall 52mm dia base, disc made for 37mm diameter tealight.
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