Duli - Dual Stereo Over-Ear Headphones
by 3DCentralVA, published
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This project began as a prototype & then manufacturing service for Yuni (http://www.yuniheadphones.com/), which is attempting to build a set of stereo headphones for people with unilateral hearing loss. The Yuni has two distinct ear cups; one with two speakers in them angled at the ear to preserve separation of L/R channels, and one dummy cup with nothing in it. This version, called the Duli, is this original project adapted for un-impaired dual-hearing use (standard headphones).
Yunis can be purchased from the link, but Dulis are not yet for sale (until we're completely caught up on the Yunis!)
But as always, other stuff IS for sale in our Etsy :)
And we do actually have a 'vitamin kit' with all the non-printed parts you will need here: https://www.tindie.com/products/CarryTheWhat/duli-headphones-vitamin-kit/
NOTE: to make this a little easier, I have put together a listing on Tindie to ship the full kit of vitamins together:
Vitamin Bill Of Materials:
- Speaker drivers x2 -- $8.76 via digikey
- Foam ear pads x2 -- $5.49 via amazon
- 1/8th inch jacks x2 $3.00 via radioshack
- 1/8th inch y-cable $4.39 via we-supply
There definitely could be better deals than these, and you can reduce the material cost buying in bulk. But buying piecemeal, the full vitamin BOM should cost about $22, plus whatever shipping. And then of course the plastic for the printed parts.
Printed Bill of Materials:
- earcover_cap x2
- earcover x2
- pin1 x4 (to join earcover to earcover_caps)
- pin2 x2 (to join earcover cup unit to headband)
- headband_half x2
There are two types of headbands here, and it's because the headbands are quite large prints. Originally, it was designed to fit on the Replicator 1. So the headband was split and printed in halves, joined by a dovetail joint. But these were not coming out consistent, so we have switched to printing the headband in one full go on a Rostock Max.
The headband is not adjustable, so if you find the fit to be too small or two large, you can export a different size. If you need any help with the OpenSCAD just let me know!
You will need 4 small lengths of wire, with at least the ends stripped. You will need to do just a tad of soldering... connecting the 1/8th inch jacks to their respective speaker drivers. Both things have a polarity to mind -- on the back of the speaker driver there are two pre-soldered pads. The one on the right has a red dot, indicating that it is positive.
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Duli - Dual Stereo Over-Ear Headphones by 3DCentralVA is licensed under the Creative Commons - Attribution - Share Alike license.
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- You must attribute (give credit) to the creator of this Thing.
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