[Woodcarver] relief panel carving

[Barney Elking]

Joe:
The difference with what I do is that my relief carvings are figurative.
Perhaps that minimizes the influence of the expansion and contraction as I'm
only dealing with the width of a body in the cross grain movements.  As far
as doors are concerned, I wasn't clear as to whether the doors were flush or
panel.  If flush, the surfaces would be the "skins" which could be either
single sheets of veneer or laminates.  If they are veneer and the cores are
hollow and not solid "where the skin is glued to solid material", the skin
could probably flex a bit.  In any event, your approach is undoubtedly the
safest and I would probably have been better off just reading about it.
Barney

----- Original Message -----
From: "Joe Dillett" <jdillett at thecarvingshop.com>
To: "[Woodcarver]" <woodcarver at six.pairlist.net>
Sent: Wednesday, November 02, 2005 1:42 PM
Subject: Re: [Woodcarver] relief panel carving



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> > I attach basswood relief carvings to hardwood plywood panels with no

> > difficulty.  The only difference is that I secure the carvings with

epoxy

> > and small screws and you won't be able to use the screws.  I would think

> > that if you use one of the longer set epoxies and get good adhesion, you

> > should be in good shape.

> > Barney Elking

> > Fortuna, CA

> ****************

> Hi Barney,

>

> I've been wrong many times before but I'm guessing this is what would

happen

> eventually by using epoxy to hold the basswood panel to plywood. Plywood

is

> much better than a normal hardwood panel door.

>

> Plywood doesn't expand and contract because the grain is running in both

> directions equally. However the basswood still wants to expand and

contract.

> Here in the Midwest basswood wants to change between .19 to .28 inches per

> foot. If your panel is 18-inches wide it will want to change 1.5 time that

> (.285 to .42 inches). My guess is that if the 18 inch wide panel is

epoxied

> now in late summer that in the winter when it wants to be about 3/8 inch

> smaller that 3/8 inch would be distributed throughout the 18 inch width

> resulting in a series of very small surface cracks allowing the weather to

> distroy the work much sooner than if it was allowed to move. Also epoxy

> would never allow for removal and maintenance.

>

> When I attach a carving I never want to burn my bridges so I prefer a

> mounting system that allows the carving to be removed for maintenance.

>

> Joe Dillett

> The Carving Shop

> 645 E. LaSalle St. Suite 3

> Somonauk, IL. 60552

> (815) 498-9290 phone

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> http://www.thecarvingshop.com

> jdillett at thecarvingshop.com

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