Home-Made IEMs
Aug 31, 2019 at 7:08 AM Post #9,931 of 15,967
USA vs China

Its time to move to Europe(I mean Sonion)
Just ask sound link to get Sonion drivers quickly.

@guiping0922 (if I remember Grace's id correctly )

LoL

Well, it was Bellsing's fault, they should at least changed the specs a bit and also the naming

It doesn't make sense to sell exact same spec driver at low cost.

Well, we gonna miss the BS6 now.

Jerry Harvey, CTM and Campfire names were mentioned.. Though..
 
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Aug 31, 2019 at 7:48 AM Post #9,932 of 15,967
USA vs China

Its time to move to Europe(I mean Sonion)
Just ask sound link to get Sonion drivers quickly.

@guiping0922 (if I remember Grace's id correctly )

LoL

Well, it was Bellsing's fault, they should at least changed the specs a bit and also the naming

It doesn't make sense to sell exact same spec driver at low cost.

Well, we gonna miss the BS6 now.

Jerry Harvey, CTM and Campfire names were mentioned.. Though..

Not just any campfire, its the freaking solaris! Their TOTL
 
Aug 31, 2019 at 8:27 AM Post #9,933 of 15,967
I order ready made shells from Taobao and AliExpress, but I need to find a way to have a gloss finish so it look like professionally done.

But too bad that Taobao and AliExpress have difficulty shipping chemical/liquid. Can I use a substitute substance like a 3d printable resin, or normal resin you guys use for CIEM as final coat/lacquer?
 
Aug 31, 2019 at 10:02 AM Post #9,934 of 15,967
I order ready made shells from Taobao and AliExpress, but I need to find a way to have a gloss finish so it look like professionally done.

But too bad that Taobao and AliExpress have difficulty shipping chemical/liquid. Can I use a substitute substance like a 3d printable resin, or normal resin you guys use for CIEM as final coat/lacquer?
Dunno


Not just any campfire, its the freaking solaris! Their TOTL
That's the art of cost cutting.

Well, Bellsing actually made cheaper custom driver compared to Knowles and Sonion plus can also be ordered in lower quantity.

@ZeosPantera I saw one video of yours
High Res sticker is passed by Japan Audio Society to those product which lies under specific distortion category. There are two tiers.

1. True High Res: Japan audio society strict checked with a certificate of signature with every product.

2. High res: Consumer Product association passes it and is less strict and is with the sticker

For everyone
I might be working on my own standard now. That too even stricter than all the standards.

Let's see, if I am able to pass my own standard goal

My standard is simple
1.Linearize the distortion figures and drop it as low as possible.
2. Perfect electrical performance like @piotrus-g does with his iem.
3. Good tuning
 
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Aug 31, 2019 at 10:28 AM Post #9,935 of 15,967
If you want to try other materials, try two component epoxy glue. It does not release any fumes and sticks to everything.
You can try uv glue such as Visbella for example. It works really great, not messy or smelly at all, you have time to adjust parts prior curing. I use it for faceplates, tubings, temporary testing setups. Just started a 2nd bottle/dispenser.
 
Aug 31, 2019 at 12:32 PM Post #9,936 of 15,967
I order ready made shells from Taobao and AliExpress, but I need to find a way to have a gloss finish so it look like professionally done.

But too bad that Taobao and AliExpress have difficulty shipping chemical/liquid. Can I use a substitute substance like a 3d printable resin, or normal resin you guys use for CIEM as final coat/lacquer?
you could sand it down and buff it, but it's a ton of work
there is no substitute to lacquer for the same shine. maybe try to find an alternative lacquer locally but It will not be medical grade.
 
Aug 31, 2019 at 12:51 PM Post #9,937 of 15,967
you could sand it down and buff it, but it's a ton of work
there is no substitute to lacquer for the same shine. maybe try to find an alternative lacquer locally but It will not be medical grade.

Could I just use a polishing agent and buff it with polishing wheel? I think the material is injection molding plastic. It just lacks the very sexy shine.
 
Aug 31, 2019 at 1:10 PM Post #9,938 of 15,967
Could I just use a polishing agent and buff it with polishing wheel? I think the material is injection molding plastic. It just lacks the very sexy shine.
what kind of shell are we talking about though?

if it's plastic it might melt/microscratch under a polishing wheel and the result will not be like you intended. if it's resin then yes you could start buffing it with a buffing compound and a buffing wheel. you'll need to find the right polishing compound for the task. I have had good success with what shiloh recommended back then (look for enkay). there is a Dreve polishing compound as well
 
Aug 31, 2019 at 2:13 PM Post #9,939 of 15,967
Aug 31, 2019 at 2:20 PM Post #9,940 of 15,967
You can try uv glue such as Visbella for example. It works really great, not messy or smelly at all, you have time to adjust parts prior curing. I use it for faceplates, tubings, temporary testing setups. Just started a 2nd bottle/dispenser.
For transparent shell I use Fotofix. Wonderful material.
If the shell and / or faceplate are not transparent then Loctite 406 may come ....
 
Aug 31, 2019 at 3:26 PM Post #9,941 of 15,967
You can try uv glue such as Visbella for example. It works really great, not messy or smelly at all, you have time to adjust parts prior curing. I use it for faceplates, tubings, temporary testing setups. Just started a 2nd bottle/dispenser.
I use Loon Clear Fly Finish for almost everything: MMCX connectors, tubes to BAs, BAs to shells, tubes to shell, sealing resistors and capacitors, everything! It cures quickly, it's not sticky at all after curing. Comes in Thick, Thin and Flow. It is the best product I have tested so far...

 
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Aug 31, 2019 at 7:01 PM Post #9,942 of 15,967
Always watch out for suspicious uv adhesives and other chemicals, even isopropanol. Vapours from uv adhesives (this sweet smell) fuse up the lungs. Always use masks, outdoor vapour extracts and black nitrile gloves. If you find this ridiculous, read any safety data sheet for resin or biomedical lack.

Unless you don't want kids (some safety data sheets (fck!) and dream of different kinds of cancer.
 
Aug 31, 2019 at 7:30 PM Post #9,943 of 15,967
Bellsing's statement: http://erji.net/forum.php?mod=viewthread&tid=2159979&extra=page=1

Lmao, as expected, Bellsing denies everything. Instead, Bellsing claims Knowles is infringing Bellsing's copyrights, and will take action against Knowles.
Knowles Corporation as whole is 74years old. Even there child company Audience is 19years old which is still way to old compared to Bellsing.
Knowles created ED-9689 and a CI(pacemaker) in 1988.

I dont see Bellsing and their supporters winning here though. And as we all know, Knowles was silent for a pretty long period of time... Dont you think... Till the point when bellsing was not getting in its own zone of partners.

Its all USA vs China going on nowadays

Just sit back and enjoy...

Plus , BA are going to be slightly cheaper from November. (A hearing aid maker told me)
 
Aug 31, 2019 at 10:36 PM Post #9,944 of 15,967

Someone was asking for new pictures of builds some pages ago. Here’s one. My MASM 3 pro. (K is my initial)


Here are some of the one's I've built lately


20190809_172814_HDR.jpg 20190809_172827_HDR.jpg 20190809_172852_HDR.jpg 20190809_172909_HDR.jpg 20190814_003859_HDR.jpg 20190814_004028_HDR.jpg 20190814_004048_HDR.jpg 20190814_004124_HDR.jpg 20190824_190552_HDR.jpg 20190824_190609_HDR.jpg 20190824_190718_HDR.jpg 20190824_190739_HDR.jpg 20190825_180920_HDR.jpg 20190825_180934_HDR.jpg 20190825_180948_HDR.jpg 20190825_181002_HDR.jpg 20190825_181019_HDR.jpg 20190825_181038_HDR.jpg
 

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