I bought some 1mirrors from Michael's (that's why the tolerances on this thing are so awful... the tolerances on their 1 mirrors aren't that great, so I had to make it able to fit the biggest mirror that I had in my batch), and whipped up a quick OpenSCAD box for them to be a periscope in! Now you can look over/around things, or maybe print 2 and enhance your depth perception!

I design things in my free time, just for fun. If you like my stuff, send me some DOGE. It'll totally make my day! Thank you.

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Just print one, pop it off the build plate, and glue in a mirror to each end!