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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
Re: PETG Finishing / Polishing - Any Solvents? - 10 years ago
Sorry for the delay in updating: Cyclohexanone can be used alone to solvent weld PETG. I welded two plates about 30mm by 50mm together with about 100 uL of cyclohexanone. I wiped one plate across the other and then pressed them together firmly. They held within less than a minute, similar in all respects to acetone on ABS. Acetone and MEK alone also appear to be usable, quickly holding. I havenby Bryce - Polymer Working Group
Re: PETG Finishing / Polishing - Any Solvents? - 10 years ago
I've heard PETG can be solvent welded with a mixture of methyl ethyl ketone and cyclohexanone. Next time I print some I am planning to try neat MEK. I also ordered some cyclohexanone to test, but it hasn't gotten in yet. Either way, it can presumably be polished with the same solvents that solvent weld it, under appropriate conditions. Cyclohexanone was $0.30/mL in the lowest quantity I could fby Bryce - Polymer Working Group
Re: POM woes - 10 years ago
I tried printing POM. I used Delrin tape on an aluminium heatbed. Printed at 220-230 for layer adhesion - much lower and it would delaminate. Heat bed was at 100C, but only because mine doesn't go any higher. Using the Delrin tape, I was able to print objects about 20mm cubed. I printed a ~15mm major diameter herringbone gear and a 20mm calibration object. The latter had pronounced warp (severaby Bryce - General