I would just cut rectangles on the table saw and fasten the plexiglass to 2 4 x 4's running perpendicular to plexi for your pass through. Attach with angle brackets.
Was thinking about making it more eye pleasing than 2x material. Thought about something like this. 15858688632207928559563352138652.jpg
First one done. What do you guys think
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I suggest really rounding all the edges and corners so some fool doesn't hurt themselves and sue you. No good deed goes unpunished.
ShopBot Details:
2013 PRS 96x60x12 (Centroid upgrade)
4hp Spindle
12" indexer
Aspire
Rhino
Fusion 360
Ferrari 360
Prusa MK3S+
Prusa XL multi-tool
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I haven't cut plexiglass before but those edges are as smooth as can be. Very happy with the results. They are just a barrier between the poll workers and the voters sitting on a table. Wasn't able to screw them down to the top so i had to come up with a way they were free standing.
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Need to make 18 of these things by Monday. Donating my time for this project but hope it helps. Don't know what to think about the one time use and probably never used again but I guess that would be a good thing!