snowlune
Head-Fier
- Joined
- Feb 13, 2015
- Posts
- 62
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- 17
Because you are using a universal fit. the seal can only be made by the silicone tip, so when you say you loose seal because of the stripped shell, I don't understand it.
Regarding the shape of your shell you should make it less triangular and more rounded so you could gain space to fit the drivers inside.
Take a look at this shell
http://www.aliexpress.com/item/New-****-UE-Custom-Made-Around-Ear-Earphone-HIFI-Monitor-Headphones-Noise-Reduction-Headset-With-MMCX/32502390629.html?ws_ab_test=searchweb201556_7_79_78_77_80,searchweb201644_5,searchweb201560_7
You should do this, pay attention also where the connection for the cable is placed as it is where it should be to allow the cable to connect to the shell with as less discomfort as possible between it and your ear.
The more drivers you want to fit, the more the shell needs to protrude outward adding more depth to it...Usually CIEMs allow for more drivers while retaining a "flusher" profile.
Look at this picture from the layla threadso yeah...
Regarding the bores, you could make the tubes connect at a wider diameter point
Thanks for the pictures, Those are giving me another valuable clue.
What I've been trying to do is to align the drivers horizontally, perpendicular to the nozzle. The tube would have to make a 90 degree bend, which takes up more space horizontally. This is how the drivers are aligned in Shure/Westone models. The way they get everything to fit is by not using any tubing at all beside the nozzle. All the drivers are enclosed inside a rubber boot which fires straight into the nozzle. The highs are damped with a single damper inside the nozzle.
Looking at the pictures of the Layla/Angie sticking out in the ear, I'm strongly convinced that what they're doing is aligning the drivers parallel with the nozzle, where the drivers point directly at your eardrum. Judging by other pictures I've seen I'd assume they're using tubing and not the rubber boot design seen in Shure/Westone models.
Another alternative would be what Noble is doing. They're making the drivers point downwards, at the ground. The tubing would still have to make a 90 degree bend, but it seems like the space in human ears is only limited horizontally. You can increase the space by either making it stick out further or elongating it vertically, and either approach would not sacrifice comfort too much.
As for the 3D printing, if you look closely at the shell, you'll notice that it is not completely smooth and solid. How a 3D printer works is it prints out these thin lines, and overlays them on top of each other to create a solid form. What happens when you have curvature across multiple planes at the same time is that the spacing between the lines becomes uneven. Sometimes the spacing becomes so large that you have tiny gaps between the lines.
The drivers are connected to tubing, which connects into the nozzle hole. Here's where the seal is broken. I'm suspecting there's a hairline gap somewhere here.
The cable connection can be done, although it might take some trial and error to make it fit at the right angle.
