I don’t think too many here mind the occasional off-topic question that is somewhat tangential to lathe or making/fixing stuff.

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Asking what star system the aliens who build the pyramids came from, yeah not so much.

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As far as your questions “plastic” is a bit broad.? For acrylic, PVC, ABS etc a solvent will work, eg acetone or MEK.? Otherwise use an epoxy.

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You don’t glue stained glass.? There’s 2 types of stained glass, leaded and foil.? For leaded you use putty or grout to stop the glass rattling.? On the old days for foil bees wax was used, these days you use adhesive backed copper tape so no need once everything is soldered.? (Unless you meant what sort of glass, and that’s usually the typical 3mm stuff.)

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Tony

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(Disclaimer – I use acrylic a lot, and used to do stained glass.? I’ve been meaning to do some acrylic “stained glass” panels.)

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