(vía Camiseta gráfica 'aztec patterns, cool desing ' de sbsteam2000)
aztec, patterns, pattern, tribal, abstract, geometric, native, bohemian, mexican, boho, tribal pattern, indian, vintage, modern, aztec patterns, mexican patterns, aztec pattern, black, trendy, native american patterns, cool, tribe, andes, fashion, aztec designs, mayan patterns, navajo patterns, andes patterns, andes designs, inca patterns
0 notes
"Pirates" Aztec Gold Medallion Cast
Early on in my adventures in 3D printing, I saw some comments on using printed models to make molds for casting other materials like metal. I thought that sounded extremely interesting, and wanted to look into trying it out, but I really didn't want to blow hundreds of dollars on smelting equipment on what could easily amount to a brief experiment.
THEN I recently learned that pewter has such a low melting point that it can be melted on a stovetop. So instead of spending hundreds of dollars on stuff for smelting and casting, so I could spend tens of dollars and be able to make use of a lot of on-hand materials and equipment such as a hotplate and an old pot.
ANYWAY. This new knowledge re-sparked my interest in trying metal casting with molds made from 3D prints. So...I made a mold from a 3D print. (Which you can find here on Thingiverse!)
It came out a little messy, but usable! It's been a really long time since I've made a plaster mold. The most important thing is patience, because the "wait 24 hours to fully harden and dry" on the carton of plaster powder isn't just a suggestion. I ruined my first attempt at making the mold because it wasn't fully dry when I tried to take the resin medallion out and it took a lot of the plaster with it.
So that in itself was a whole thing, but once I had a usable mold, it was time to get my hands on some pewter. You can find pewter stuff to melt down in thrift stores, but I was not so lucky. The two pieces I managed to find turned out to be made of some kind of steel that was meant to LOOK like pewter.
So much for finding a cheap supply. I ended up having to buy a large ingot of the stuff from Amazon.
But hey, at least it's guaranteed to actually be pewter, and I was thus actually able to get it to melt in the pot on a hotplate. Success!
Using a ladle, I carefully poured the molten metal into the mold, then poured the rest into the dollar store muffin tin to divide it into smaller ingots that will melt faster the next time I do this. All we need to do now is wait for the stuff in the mold to cool, then see if it worked!
And it did! Mostly! Honestly, with this being my first time ever casting metal, I consider it an absolute win that it came out as good as it did even though it's pretty rough looking.
Cleaned up the edges with a rotary tool. I thought maybe I could smooth it out a bit with some fine sandpaper, but it didn't really seem to have much effect.
This project is also my first time trying out Rub N' Buff. I hoped to get a much more shiny finish, but I think the roughness of the casting hindered those efforts. I probably could've just used my gold spray paint and gotten similar results.
That said, the goal of this project was to try out some new techniques and make mistakes to learn from, so MISSION ACCOMPLISHED.
5 notes
·
View notes