My router (makita) was supplied with a copying guide but the opening was too small.
I've look online but I could not managed to find the right size so I did what any sane person would do: print one
Edit: more pictures of the result
this post was submitted on 17 Mar 2024
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I’m not OP, but I would guess they cut out one dinosaur profile and wanted another to match. The copying guide allowed them to set the first cutout on top of another sheet of plywood and then trace around the template. You can see a sleeve around the router bit that would protect whatever the router is sitting on.
Yes, exactly that except that I made the first cutout on the 3D printer too.
I had to split it in 10 for it to fit on the printer bed but it gave me a very accurate template