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October 10, 2014 at 4:40 am #1680
Did some research. ABS is easily dissolved in acetone, polystyrene a little bit, but the PTFE of most ‘cheap’ cartridges should hold up to the acetone.
Unfortunately, from your pictures, it seems that the HP CN642A has ABS components.
So, maybe if we can reverse engineer some of the cheaper HP cartridges, we may be able to print ABS powder with ABS+Acetone as a binder.
All depends on if acetone + ABS turns into a fluid, goop, or slurry.