The One Ring (glowing)

thingiverse

This is the text for the one ring from The Lord of the Rings. Follow the post-printing instructions to make a ring with text that is normally invisible but glows when exposed to UV light. (The one in the books used fire, but I don't have a volcano... or magic. This one just melts and burns in fire.) You'll also need polycaprolactone (PCL) for this build. PCL is available in pellet form from several online stores. I get mine from MCM Elextronics under the brand Polymold. If you have a dual extruder you may want to try this one instead http://www.thingiverse.com/thing:1343185. Print Settings Printer Brand: Printrbot Printer: Printrbot Plus Rafts: No Supports: No Resolution: 0.1 MM Infill: N/A Notes: Use glow in the dark filament. Post-Printing Heat water to boiling (or just below). Pour enough PCL pellets to make your ring into the hot water. When the PCL is clear fish it out of the water with a metal utensil (like a spoon or fork). PCL is not-toxic and food safe (unless yours says otherwise). The PCL will be cool enough to work with your hands,but watch out for pockets of hot water trapped inside. Fill the space between the outer ring and your finger with molten PCL. Don't cover the outer layer of glow in the dark plastic because you'll need to cut it off. You may need to put the ring in the hot water to keep the PCL moldable. Shape the edges of the ring and remove any excess PCL. The excess can be re-melted and used for other projects. Let the ring cool. For faster cooling run cold (or at least cool) water over it. Remove the outer layer of glowing plastic. I'm sure there's a better way, but I used a pocket knife, and file. (This is the most difficult part of the build.) Touch up the ring as needed with short dips in hot water and you're done.