Created Appendix D: Hardware (markdown)

Appendix-D:-Hardware.md

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+# Buying hardware from us
+
+Getting all of the hardware on your own can be tricky. [That's why we sell kits with everything you need to build a set of Ploopy Headphones](https://ploopy.co/product-category/headphones/). Here's why that's great for you:
+
+- Everything is guaranteed to fit together perfectly
+- Everything is guaranteed to work as intended
+- You'll end up saving money - probably quite a bit of money - by not spending on extra parts
+
+Your call. You'll sort it out.
+
+# Getting your own hardware
+
+Here's a complete list of all the hardware you'll need:
+
+- 28 Small Screws
+- 12 Big Screws
+- 8 Metal Dowels
+- Woven Stockinette
+- 3/4" Foam
+- 1/8" Foam
+- 12 Magnets
+- Felt
+
+Let's get cracking.
+
+## Small Screws
+
+Details:
+
+- #2
+- 3/8" length
+
+## Big Screws
+
+Details:
+
+- #4
+- 3/8" length
+
+## Metal Dowels
+
+Details:
+
+- M3
+- 12mm length
+
+## Woven Stockinette
+
+Details:
+
+- 1.5" circumference
+- Cotton
+
+## 3/4" Foam
+
+Details:
+
+- 3/4" thick
+- Lowest possible pressure to compress you can get
+
+## 1/8" Foam
+
+Details:
+
+- 1/8" thick
+
+## Magnets
+
+Details:
+
+- 30mm length
+- 5mm width
+- 5mm height
+- Strongest possible magnet you can get
+
+## Felt
+
+Details:
+
+- 3/64" maximum thickness