Re: How Would You Design question

Hello,

The machine you describe is common in Japan, where "planed" surfaces
are still revered... Marunaka Intl. is one supplier. They sold a
small 4 inch version in the US coupla decades ago. Makita also sold a
10 inch version, model 2501 I think. This would NOT work for the .2,
but "could" work for the .05

There's a bit more to slicing veneers however. If you go the route of
slicing, be sure to contact the FPL in Madison, WI for info(Forest
Products Laboratory). And they're not a bad resource for ANY "wood"
question. But I think the structural damage done to the wood by the
gotchas inherent in slicing would limit its effectiveness for this
use...

Hope this helps,

Ballendo

P.S. Tim, There is also a gang resaw used for making the
thin "hidden" laminations often seen in scandinavian designs. It is
designed to work with blocks the size of your blanks. I saw it at an
Anaheim trade show. Would work well (pun intended). I'm sure it(and
many other choices) would also be at The IWF trade show in Atlanta
this summer.

--- In CAD_CAM_EDM_DRO@y..., Peter <prenolds@s...> wrote:
> Tim,
>
> Would it also be worth considering a "plane" arrangement where you
> eliminate the saw completely and basically just pass a 4"(actually
a bit
> wider than your maximum work block) wide plane blade over the
block.
> The blade would need to be rigidly mounted and on rails - kind of
like a
> railway bogey which has a software controlled height control.
>
> I'm sure this would work at the .050" thicknesses but would
probably
> fail at .200" due to the thickness of the blade. If it could be
made to
> work - you would get a lot more yield from a block and no
sawdust...
> Obviously the blade would have to be rigidly mounted.
>
> Cheers, Peter
>
> Tim Goldstein wrote:
>
> > Been thinking about creating a specific purpose CNC machine and
thought it
> > would be help to see how some of you would attack the problem.
The question
> > revolves complete around the mechanical design of the equipment
and does not
> > at all consider the electrical or software from the motors to the
computer.
> >
> > Here are the design parameters:
> > 1) The machine will be single purpose to cut sheets of wood off
of blocks
> > with a maximum dimension of 3" x 4" x 37"
> > 2) The resulting sheets need to be consistent in thickness over
the lenght
> > of the sheet + - .0025
> > 3) The thinnest sheets cut will be .050" and the thickest will
be .200"
> > 4) The cutting motion travel will need to be in the speed range
of 20 - 60
> > ipm with a rapid backfeed in the 200+ ipm range.
> > 5) The actual cutting equipment will be a high end table saw with
very good
> > bearings so that the spindle rigidity, run out, etc do not need
to be part
> > of the design discussion
> > 6) The designed mechinism has to fit on and be compatable with a
high
> > quality table saw
> > 7) The mechanical portion of the design (not including motors,
the base saw,
> > electronics, or software) should be able to be constructed for
about $500
> > 8) Specifying expensive components that are commonly able to be
found in the
> > surplus market to meet the cost goal of #7 is acceptable.
> >
> > I think that pretty well lays out the general requirements I am
trying to
> > meet. Look forward to the various ideas that everyone may have on
how to
> > accomplish this. I have some ideas in mind and it will be
interesting to see
> > if they are consistent with the group consenses.
> >
> > Tim
> > [Denver, CO]
> > http://www.KTMarketing.com/CNC.html
> >
> >
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