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$5 Macro Lens - for use above and below the waves

Step 4Cut the retaining ring

Cut the retaining ring
Once cooled remove the coil from the mold. Cut 1 complete spiral, plus a bit extra, from the coil.
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Author:Warthaug
I am a research scientist from Canada. My interests are broad - everything science, the outdoors, SCUBA diving, food, beer, etc.