All the parts used for the two earcups. I recommend also having needle nose tweezers and some pliers. Only 6 pieces, 2 drivers, 2 sockets, 20 M2x8mm screws and 20 M2 nuts.

Start with the main body and 4 nuts.

Put the nuts in the main body.

Bring out the main body and the pad mount and 4 screws.

Put the pad mount and the main body so the screw holes match up.

Screw in the 4 screws

Insert the 3.5mm socket.

Screw in the nut holding in the socket.

Screw in the socket nut and tighten it with the pliers.

Insert the nuts in the sides. If the screw holes are blocked off due to the 3D printing, simply use the needle nose pliers to poke a hole.

Connect the driver to the socket.

Place the driver in the socket.

Just put the driver holder over the driver. It should fit snugly over the driver. Then start screwing in the driver.

New 3.5mm sockets are typically quite stiff, so it is recommended to use something like a 6.35mm to 3.5mm adapter to loosen the hole. Just stick it in once and pull it back out and you're done!

Now repeat the process. I recommend that you test out the "headphones" now before assembling the entire thing so that you know that everything is functional.

Insert 4 nuts on the 4 outer nut holders.

Grab the shell.

Put together the outer shell and the main body. It should fit quite snug.

Screw in the shell via the 4 screw holes on the sides. Don't worry about the nuts falling out, I've made it so that once you put the shell on, the nuts will not fall out.

Now to add the earpads.

Start by adding the earpads halfway.

Use your thumb to push the earpads onto the pad mount. The earpads should not break and are made to stretch to fit on an HM5 sized pad hanger.

And now you're done with the earcups!