sf wrote:
> On Sun, 02 Sep 2012 22:46:59 -0400, "Jean B." > wrote:
>
>> dsi1 wrote:
>>> I think we'll be seeing all kinds of amazing, beautiful, food products
>>> made by 3D printing. One of these days, we'll print our own guitars.
>>>
>>> The hearing aid industry has been printing custom hearing aid shells for
>>> about 20 years. These days, most everybody does it that way. OTOH, at
>>> least one manufacturer has rejected printing 3D shells. They prefer to
>>> do it the old fashioned way by using investment casting. Oddly enough,
>>> they do an excellent job.
>>>
>> Oh, I am now thinking of dental crowns and implants.
>
> How do you make those 3D tooth images hard and how do hearing aides
> hear without a chip? Neither one seems like it would be any more
> durable than a piece of (real) chalk. Think about something that
> you're trying to use *now* when it breaks. What's your first
> reaction? If you have another option, are you likely to use it again?
>
I have NO idea how these things work, but it sounds like an
interesting concept. I will play it by ear.

--
Jean B.