I ran across this on Facebook this morning. Facebook posts are not the most permanent format, so I’m not sure how it will integrate into this forum, but it was too cool to pass up. Hopefully you can also see the comments, which include a video of the gun in action (!) and a still-working decades-old production board that was wrapped with it.
Nice! The “inventor” is well on their way to becoming a competent mechanical engineer, if EE doesn’t work out, or as complementary skill set. I particularly liked the quick-stop mechanism.