The holes are 1.5mm diameter.
Some high resolution images...
[printed using ColorFabb nGen on a Lulzbot TAZ 6 with 0.5mm hot end at 200µm layers]
I was shown a dodecahedron with LEDs inside. Looked great, so decided to have a go. The principle is not that hard - a PCB strip on the insi...
Have you ever tried printing threads?
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