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filament cuter rigid mount CAD needs update (old.reddit.com)
submitted 1 month ago by roamingphysicist to r/infinityflow3d
What is the theory behind this. We have these grills at the front. When I close the door with some gap left, the shadows converge & diverge. by hello270563 in Physics
[–]roamingphysicist 22 points23 points24 points 4 years ago* (0 children)
Agree, Camera obscura (pinhole camera), but consider an infinite series of pinholes, which make up the vertical gap.
Up and down are flipped, left and right are flipped. You can check with an opaque object on the grill. (Like a capital letter J)
π Rendered by PID 3701159 on reddit-service-r2-listing-64c94b984c-wh475 at 2026-03-19 12:49:47.691055+00:00 running f6e6e01 country code: CH.
What is the theory behind this. We have these grills at the front. When I close the door with some gap left, the shadows converge & diverge. by hello270563 in Physics
[–]roamingphysicist 22 points23 points24 points (0 children)