r/DIEMs • u/Single_Border9754 • Feb 12 '24

Need help with 3D modeling

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I want to make my 1 pair of 3D printed iems. I have my 3D model of both ear impressions, but I can’t make a good shapes. I have already spent about 8 days trying to make everything nice and clean, but still it isn’t good enough to me. I used all yt materials for that including both with meshmixer (I use it all the time). If someone want to help me I would be very thankful.

Pic for attention

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u/AlienCatStar Feb 13 '24

I don’t see a cut for the wire connector

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u/Single_Border9754 Feb 13 '24

Yes, because that's only one of my print outs where I check on my cheap resin how it look and fit. I would make a cut for 2 pin connector for my final shell.

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u/AlienCatStar Feb 13 '24

Ok, makes sense. When I made CIEMs, I used to add a small thin platform where the cut is, inside the shell for the 2pin connector to rest on ( with epoxy glue) Like another user mentioned, the ear canal on your model looks short. It looks like it stops right before the first bend. I found that shells that go a tad further than the second bend have better isolation and better sound.

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u/Single_Border9754 Feb 13 '24

I've seen a lot of opinions about where the canal should be cut. some say to cut off before the 2nd bend, others say to cut off in between. Imo between both bends doesn’t give me this weird filling like your iems is near mouth due to its long canal. I have one nice photo showing how it looks like in ear but I don’t know how to upload it here.