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Had to fit HDMI & Displayport cables through 25mm/1 inch electrical conduit (building static limits it to 25mm). The issue is that the connector won't fit through the commercial 90-degree corners.
Solution? Enlarge the profile while keeping the bending radius:
Some CAD and a 3D print later I have the solution no money can buy. That's the power of 3D-printing and modeling.
Going to wager those are significantly more flammable that the original material. Probably alright for purely low voltage applications. But not something to take lightly. 3D printing thermoplastics are not safe as electrical covers, conduit, or boxes.
UL94 V0 filament is available: PLA, PETG, ABS, PC and probably more.
V0 means stops burning within 10 seconds and ~~no dripping~~. That's good enough for these applications.
edit: apparently dripping is allowed as long as those aren't flammable. Regardless most V0-rated filaments don't drip as the "charcoal" when exposed to fire.
Whew, I for one, am glad a little dripping is allowed.
It's not weird. It's not gross. It's normal and it's allowed.