Add headphone holder

content/3dprint/_index.md

@@ -12,4 +12,6 @@ This page is dedicated to sharing my designs in case they some-day help someone
 
 - Cable Organizers
   - [Cable organizing clips for VIVO monitor arms](/3dprint/vivo-monitor-arm-clips/)
-  - [Cable organizing clips for Neewer microphone arms](/3dprint/neewer-mic-arm-clips/)
+  - [Cable organizing clips for Neewer microphone arms](/3dprint/neewer-mic-arm-clips/)
+- Misc
+  - [KALLAX headphone holder](/3dprint/kallax-headphone-holder/)

content/3dprint/kallax-headphone-holder.md

@@ -0,0 +1,15 @@
+---
+title: KALLAX headphone holder
+extra:
+    og_image: https://ewpratten.com/images/cad/kallax-headphone-holder/photo-with-headphones.JPG
+---
+
+IKEA's KALLAX shelf has some holes drilled in it that are intended to be used for wall mounting with a 90-degree bracket. I use my shelves sideways, so wall mounting isn't really important for stability.
+
+This leaves me with some unused mounting holes. I decided to design a headphone holder that attaches to these holes instead.
+
+![A photo of the headphone holder](/images/cad/kallax-headphone-holder/photo-with-headphones.JPG)
+
+![A photo from below](/images/cad/kallax-headphone-holder/underside.JPG)
+
+Feel free to [download the STL file](/downloads/cad/kallax-headphone-mount.stl) and print your own.