Using a dollar store square and nails to make a registration fixture.

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Using a dollar store square and nails to make a registration fixture.

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Nice. What I did was put 2 dots on the top of anything I wanted to be able to reposition (eg, a jig for holding plastic pieces to be engraved), then used a red pointer (https://www.thingiverse.com/thing:1002341), and manually move the jig so it lined up with the “burn dots.”
https://www.thingiverse.com/thing:1002341