Headphones - wireless Bluetooth (BT) or wired

thingiverse

Over-ear Bluetooth headphones are quite pricey so why not build them yourself? I've browsed Thingiverse and found nothing that caught my eye. However, the Duli v2 had some nice features I could use (thing:674179). I started testing and finally got the right cups for sound quality. The current version works really well for me. I placed this as a 'work in progress' although it's quite finished now. What you need: 1. PETG filament - I use eSun. 2. A Bluetooth AUX Audio Adapter - I used: https://www.banggood.com/BlitzWolf-Bluetooth-V4_1-Car-Handsfree-Music-Receiver-3_5mm-AUX-Audio-Adapter-p-1051628.html?cur_warehouse=CN (about €15,-). 3. 3.5mm stereo male jack plug - https://www.banggood.com/3_5mm-3-Pole-Golden-Male-Repair-Headphones-Audio-Jack-Plug-Connector-p-940438.html?rmmds=search&cur_warehouse=CN. 4. 3.5mm stereo female jack chassis mount, it must have a nut for fastening it to the speaker-cup - something like: https://www.banggood.com/5pcs-PCB-Panel-Mount-3_5mm-Female-Earphone-Jack-Socket-Connector-p-1038048.html?rmmds=search&cur_warehouse=CN. 5. Single string stereo wire, 50 cm in length and a 1.9mm in diameter (smaller is also okay). 6. Two speaker drivers 40mm - I used: https://www.banggood.com/30MW-Replacement-Earphone-Speaker-Unit-for-Bose-QC25-Headphone-p-1232965.html?cur_warehouse=CN (€3.26 per pair). In my experience, 40mm drivers are the best size, smaller ones will give a flatter sound. (But if you really want to use smaller ones, then just resize the inner diameter of the front baffle inserts.) 7. Velvet ear pads: https://www.banggood.com/Velour-Velvet-Replacement-Ear-Pads-Cushion-For-AKG-K240-Studio-K240MKII-K270-K271-K271S-K272-p-1066665.html?cur_warehouse=CN (€2.74) or PU leather ear pads: https://nl.aliexpress.com/item/Replacement-Ear-Cup-Pads-Earpads-Cushion-For-AKG-K240-K241-K270-K271-K272-K280-K290-K340/1235381384.html (€10.64). 8. When using the headphones wired, you'll need 1.5 mtr cable with at least one 3.5 mm stereo male jack and whatever you need on the other side. (I had an old broken USB headphones lying around, that works also making the headphones very versatile.) 9. Rubber headband padding. 10. A soldering iron and some solder. 11. All the printed parts, printing the baffle and baffle insert twice.