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galliumscan
Dec 25, 2006

Dammit, Jim, I'm an engineer, not a doctor! No, wait...

poeticoddity posted:

I'm looking for a source of a thin but moderately rigid plastic that could be cut with an x-acto knife. I want to make some stencils larger than the standard size for overhead projector transparencies, but ideally from the same material.

Sheet styrene, from a big hobby shop - one of those places that sells radio controlled planes/ cars, etc... Comes in many different thicknesses, from really thin (like 0.010 in) to pretty thick (like 0.050 in), opaque white.

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galliumscan
Dec 25, 2006

Dammit, Jim, I'm an engineer, not a doctor! No, wait...

Crazyweasel posted:

Tl;dr - open 2" pvc pipe in basement just started dripping, have no idea why or what it is for...thoughts?


A/C's have a primary drain pipe, which you described. They also have an emergency drain should the 1st become clogged, and those typically drain the overflow pan and terminate in a location where they can (optimally) be easily seen. Ours is sent out the eve, in front of a window. If they're dripping, you need to find somebody ASAP to clear the primary. Because if the secondary drain clogs (bees or algae are the usual culprits), then the pan overflows, and the next exit is our ceiling sheetrock.

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