Machinist in the house?

On Mon, 16 Feb 2004 22:24:11 -0600, (jjs)
wrote:

In article , Charles
wrote:

You might post this in the rec.woodworking group. they know a lot
about wood. I haven't played with cherry, so I can't comment on how
different woods would compare.

I use cherry all the time, and I like it but this is a prototype of
something that will finally be made in a stainless steel. Wood is not
strong enough for the design I am trying to show. The thing collapses. I'm
about to cave in and change the whole thing. I should have married a rich
machinist. :0


Then rec.crafts.metalworking?

If you made a model of your project, or the parts thereof, someone
there might be able to cast it in aluminum/brass/bronze. A casting
then shouldn't require too much machining to achieve the finish you
need for the prototype.


--

- Charles
-
-does not play well with others

JJ, I haven't been following this thread closely, but if you need strength
and toughness with light weight, you might look at a carbon
fiber/kevlar/S-glass composite sandwich... Go to the Experimental Aircraft
Association (w3.eaa.org) website and peruse their book store for books on
composites... We custom aircraft builders tend to be at the leading edge of
technology... You can buy prepreg materials and do your own vacuum bag
curing over a handmade wood form, and get shapes that are difficult and
expensive to produce in stainless...
If my comments have been covered or are off base, ignore me as usual...
denny
"jjs" wrote in message
n a stainless steel. Wood is not
strong enough for the design I am trying to show.

In article , "Dennis O'Connor"
wrote:

JJ, I haven't been following this thread closely, but if you need strength
and toughness with light weight, you might look at a carbon
fiber/kevlar/S-glass composite sandwich... Go to the Experimental Aircraft
Association (w3.eaa.org) website and peruse their book store for books on
composites... We custom aircraft builders tend to be at the leading edge of
technology...

Hi, Dennis. I addressed composties, CF included earlier. FWIW, I live in a
composites research and applications area. Contact me offline if you like.

In article , "Sherman"
wrote:

This stuff is very cool! [...]

If you like that, then check out the Rapid Prototyping area, and this
site: http://www.quickparts.com/

UMHW is translucent so probably not suitable for camera bodies unless you
paint it after you make it.

For something totally different you could make a body out of black Corian.

ABS also comes to mind.

--
darkroommike

----------
"jjs" wrote in message
...
In article , Nick Zentena
wrote:



http://www.leevalley.com/wood/page.a...3455,43831&ccu
rrency=1&SID=

Now when they say it machines just like wood do they mean soft pine or
the
worst tropical wood? I think the stuff is fairly common and you should
be
able to find it.

Thanks, Nick. I did not find that in my search. In return I will share the
folllowing link, although it gives me more choices than I know what to do
with. http://www.plastic-materials.com/

Two of the sources are right here in Minnesota.

Yes, as you suggested, some wood is very hard. If it cuts like Cherry I
would be happy. If it cuts like Ebony, I'd be as well off using steel.

Thank you again.

"Mike King" wrote in message
...
UMHW is translucent so probably not suitable for camera bodies unless you
paint it after you make it.

For something totally different you could make a body out of black Corian.

ABS also comes to mind.

This camera has no body.

Nope, that isn't why it is chosen. It is chosen for its strength and
hardness (in the case of hard maples like sugar maple)...many woods are more
stable dimensionally than maple and for the surfaces producing the sound in
wooden instruments you will see woods like Sitka spruce, mahogany, etc.

"David J. Littleboy" wrote in message
...


It's a lot better than spruce, which is why it's the material of choice
for
structural components of violins and guitars and the like.

David J. Littleboy
Tokyo, Japan

"George" wrote in message
...
Nope, that isn't why it is chosen. It is chosen for its strength and
hardness (in the case of hard maples like sugar maple)...many woods are
more
stable dimensionally than maple and for the surfaces producing the sound
in
wooden instruments you will see woods like Sitka spruce, mahogany, etc.

Read David Littleboy's post carefully. He said "the structural components"
meaning the stressed portions such as the neck, bridge, and maybe the ridges
and soundpost, and he's right.

My error...hard maple would be excellent for structural components. I do
use it to build shop jigs and such as it also holds up very well and is
quite hard.

"jjs" wrote in message
...


Read David Littleboy's post carefully. He said "the structural components"
meaning the stressed portions such as the neck, bridge, and maybe the
ridges
and soundpost, and he's right.

ON Sat, 14 Feb 2004 10:44:11 -0600, (jjs)
WROTE:

Yes, as you suggested, some wood is very hard. If it cuts like Cherry I
would be happy. If it cuts like Ebony, I'd be as well off using steel.

Thank you again.

I see you have experienced the effect ebony has on woodworking tools.


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