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Micro Hole (Channel) Test
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Micro Channel Test – 200–600 MicronsThis test piece is designed to check how well your printer handles tiny channels. It features holes ranging from 200 µm to 600 µm, increasing in 50 µm steps — so you get 200, 250, 300, all the way up to 600 microns.Printed and tested on the ELEGOO Mars 4 Ultra. On my print, channels 500 microns and larger came out clean, while anything smaller was mostly closed off — a solid reference point for what the machine can handle.Useful for dialing in your resin prints, especially if you're doing microfluidics, precision parts, or anything where fine details matter.
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