Rib grain orientation

[Richard Brekne]

---------------------- multipart/alternative attachment
Why not get really fancy. Straight up vertical grain in the
middle, graduating to 45 degrees at the edges ?

Just another one of these thoughts of mine... :)

RicB

Erwinspiano@aol.com wrote:

>                 Honestly I wonder if it matters. I cut up
> some tight grain& dense old sugar pine stock from material
> gutted from a old pipe organ. Some of the pieces took on a
> beautiful tight arc appropriate for some tight radius
> treble ribs. The material is stiff and predisposed to this
> orientation already. It sounds like a good match ehh? I
> used some already. No worrys.
>      If there was a slight stiffness difference it could
> be made up in rib thickness. No big deal. Ask some one in
> our engineering dept. if the wood strength formulas change
> for this slight change in orientation. (that would be
> you). I doubt  if it requieres a different calculation.
>   Why would it be benificial to change the grain
> orientation to have the ray run the other way.I don't
> follow this.
>     Regards
>           Dale

--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html


---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/1d/f7/c5/c1/attachment.htm

---------------------- multipart/alternative attachment--