HD666 - Sennheiser HD600 mod

Hello!

What's this?

This is a way to convert your Sennheiser HD600 (and other compatible Sennheiser models) into closed-back headphones with great sound--some visual flare.  

This mod requires no tools and is easily reversible if you want to undo it. 

Printing the parts:

1. I recommend printing both parts ("horn" and “bracket”) with fuzzy skin. Personally, for fuzzy skin, I use point distance of 0.3 and fuzzy skin thickness of 0.15. 
2. Glue the horn and bracket together. You'll see where it fits. Make sure the notch on the bracket part is on the bottom; as it's where the cord will stick out. I use “Alecpea plastic glue” but any suitable glue should work. 

Steps to install on your headphones:

1. Unplug the headphone cable from the earcup of your HD600
2. Use your thumb to easily remove the HD600 bracket and grill assemblies (it's two parts). Set them aside; you don't need them anymore for this.
3. Highliy recommended: Fill the horn with balled up paper (or some other material that will absorb or diffuse sound). Regular copy paper (or magazine paper etc) seems to work great. Even better than more professional materials like polyfill. 
4. Push your your 3D printed part in place. 
5. Enjoy your HD666! 

To undo the mod:

1. Just pull off the horns 
2. Install the original HD600 bracket (it's symmetrical so doesn't matter which direction) - pop the holes on the bracket onto the pegs in the earcup 
3. Push the grill back in

Thanks for checking it out! I'm not resposibly if you mess up your headphones somehow (but I've done this multiple times and never had any issues).