At the start of this project I had four main design requirements.(I'm including the final files so if you just want to skip to the making you can download them.)

Design Requirements

The pouch must hold my notepad and pens Easily attaching to me via a belt Embroidered with the Zelda Triforce Crest A Triforce button to keep the pouch closed

To start this process I did a google image search for Triforce Crest. This was a very fruitful endeavor. From there I set about tracing a crest in inkscape using the trace bitmap tool to have a vector version of the crest. My embroidery machine can do a maximum size of 3.9 inches (9.9 cm). So after I had the vector I resized it make it fit the size limitations of my machine. From there I did two things with the file. The first was to digitize the crest for embroidery. I go into detail of how to digitize using inkstitch in my instructable on Making Iron On Pixelated Patches so if you'd like know how I digitize check it out. This step includes a .PES file that can be directly loaded onto Brother embroidery machines and the .SVG file is provided so you can look at how the digitized file was built. The second thing I did was to measure the Triforce so I would know how big to make the button in Fusion360.

Before I headed to Fusion I wanted to make sure my digitized file worked so I fired up my embroidery machine to do a test run using some felt and black thread. It turned out great. However when I started trying to embroider on my final fabric I ran into issues with bunching and thread breaking. The stitch spacing that worked with my black thread was a bit too tight for the metallic gold. I tweaked the file a few times and was finally successful.

With the patch file good to go it was time to make a Triforce button. So armed with my earlier measurements I fired up Fusion360 and got to work. I used the constrained polygon too to make the four triangles that make up the Triforce.(I know the Triforce is 3 triangles until you need a solid center like I did) From there I extruded the triangles and used the chamfer tool to make the angles on the edges of the Triangles. After that I extruded the center triangle and added the button holes.(I have to admit the idea to make my own button came from Mikeasaurus's instructable Skull Buttons) It was time to export an stl of the Triforce button so I could slice it.

I fired up Cura and loaded the STL file. Then I used the fine .1mm layer height settings because I wasn't planning on doing any finishing on the button after it was printed. I also increased the temperature on the default PLA settings to 215 degrees Celsius because it was recommended by a large number of people in the reviews for the filament on Amazon. I took the sliced file over to my printer and 20 minutes later I had an awesome Triforce button.

At this point I had figured out 3 and 4 of my design requirements. It was time to pattern the pouch.