3D printing

Printers:

• Bambu Lab X1C

• Prusa i3 MK3S

Smoothing

Enthusiasts have been trying to smooth their printed parts for years by submerging them in acetone or brushing the liquid solvent on by hand — both of which led to unhealthy amounts of chemical exposure and less-than-impressive parts. Now, makers Austin Wilson and Neil Underwood have developed a process that can approximate the results of professional molding machines with only a hot plate, mason jar, and a few ounces of acetone nail-polish remover.

ABS-based printed parts are placed in the jar with the acetone and heated to 90 degrees Celsius on the hot plate. Acetone has a low evaporation point, but is heavier than air so the process creates a small cloud around the model which melts the surface, slowly smoothing it to a mirror finish. After a couple hours, the parts solidify, can be removed, and be displayed with pride.

— Slick Trick Adds Much-Needed Shine to 3-D Printed Parts | WIRED

• How to Smooth PLA 3D Prints : 12 Steps - Instructables

• DIY 3D Printing: How to smooth your PLA prints with domestic pipe cleaner

• PLA 3D Print Vapor Smoothing using Pipe cleaner - YouTube

• Vapor Smoothing and Polishing PLA with Tetrahydrofuran (THF) / ProtoParadigm Blog

Strength remelting

Use compressed powdered salt to "cast" in place the model the remelting with oven (180°C), that strength of 3D print.

• Remelting 3D printed thermoplastics (the salt method) - YouTube

• The STRENGTH of 3D prints REMELTED in SALT - YouTube

Recycling

Aka failament, make filament

• Recycle your failed 3D prints! Make new filament at home. - YouTube