ABS adhesión con acetona

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When I printed with ABS filament, I'd place a few drops of acetone on the still-cool bed and rub it with a piece of that material, taking advantage of failed print scraps. Quite often, those pieces weren't the same color or had an uneven surface, so I set out to design a part that would serve this purpose. I designed it as a circular cylinder shape with a hole in the center where you can insert a Teflon tube (or any material that won't dissolve in acetone) through which you can drip a few drops of acetone using a syringe or dropper.