Aaron Radelow Custom Wood Designs
AaronGallery 1Gallery 2Gallery 3In ProgressShowroomDesignMaterialsLinks
 

Marquetry

Two-man veneer cutter
After Roubo

THE VENEER

Veneer MachineBefore the advent of mechanization, veneers were cut by two man teams of highly skilled veneer cutters, or sawyers, as shown above. These teams were relied on to supply workshops with precious veneers. To execute this feat of craftsmanship, the sawyers would start by clamping a log vertically into a large vice. Then, guided only by hand and eye, they would proceed to saw off slices of veneer that measured anywhere from 1mm to 5mm in thickness. Although the thickness was determined by what the veneer would ultimately be used for. This hand-sawn veneer had subtle, unintentional variations (as would be expected), which the skilled cabinet-maker, or marqueter could easily scrape or plane smooth.

As the industrial era drew near, craftsmen were looking to make processes more efficient and to increase quality through the use of machinery. In the early 19th century, a cabinetmaker by the name of Mr.Cochot invented a water-powered veneer-sawing machine. Speed was sacrificed for precision; this machine operated at a speed of only up to 250 strokes per minute to ensure that the cutting remained slow, and hence very consistent. Wood was clamped to a vertical slide and was lowered into a 4 meter deep pit. As the saw's reciprocating action was animated, each stroke of the saw raised the log gently up into the cutting blade. In France, there are still a few of these machines currently producing sawn veneers. Like these few, Aaron Radelow has modified his band saw do to the same work with exceptional results. Radelow has sawn thousands of sheets, of many different woods, by utilizing carbide tipped band saw blades and a computer that controls the motor's speed.

THE VENEER PACKET

Veneer Packet
Marquetry packets have been cut and the parts are then organized in the trays. After material preparations, packets are assembled and patterns cemented in place.

Most materials used in marquetry are stored in the workshop in a raw form. Almost all need some kind of preparation before they make their way into a veneer packet. For example, cow horn, and turtle shell need to be flattened after a soaking in hot water. Metals need to be scored on the gluing side and cleaned. In some instances sheets of wood veneer need to be dyed with color - an extensive soaking process that may take up to fifteen days. After the preparation, which in and of itself requires considerable time and expertise, veneers are usually cut to the specifications called for in the marquetry drawings.

 

 


CuttingFor example, suppose the marqueter will be cutting the decoration for the top of a jewelry box. The veneers, along with the counter veneers, must first be cut to the dimensions of the top of the jewelry box. The two counter veneers are disposable wood veneers. One is placed on top of the stack of veneers that will be used in the decoration and one is placed on the bottom. The top counter veneer is used as a surface to which to cement the design, while the bottom veneer minimizes tear out from the push stroke of the cutting blade. Counter veneers also, and most importantly, keep all the separate sheets of usable veneer held firmly in place, preventing shifting or movement that may ruin the marquetry cut. All together, this makes up the marquetry "packet."


THE VENEER PRESS

After the design has been cut, the counter veneers are discarded, revealing the pieces used to assemble the overall marquetry design. A majority of the veneer work done by Aaron Radelow is glued down using the veneer press, shown below. The veneer press is the best tool for gluing down marquetry work and veneers. This press is capable of gluing numerous panels simultaneously and even clamping on slight curves. The reason for this system being so good is control, one can start clamping at the center of a panel and work their way out radially allowing air and excess glue to easily escape. It is also the only way for cementing veneers when using animal glues.


ANIMAL GLUES

When analyzing the facets of constructing a museum quality piece of furniture, the most important facet of all, must be the type of adhesive used in its construction. The specific types are: hide glue, bone glue, fish glue, rabbit skin glue. Furniture pieces produced by Aaron Radelow are only constructed using animal protein glues. Protein based glues have a proven track record of success that goes far back into, and beyond, recorded history. For example, furniture crafted by Egyptians 5000 years ago, still stands in museums today with their joinery tightly held together by animal protein-based glues.
Animal glues are organic, non-toxic and environmentally friendly. Protein glues are also easily modified to suit dynamic applications. Additionally, while their adhesions are extremely strong, these glues allow for easy building modification. The best quality of these glues is reversibility. The glue's cohesion can be reversed with heat and moisture - a quality that is beyond today's synthetic commercial adhesives.

Hammer
"Hammer veneering" with hot hide glue

Reversibility is especially paramount when dealing with rare and valuable materials, or those materials that are no longer obtainable. For an example, let's say a conservator of antiquities was required to repair a Louis XIV lectern featuring ivory marquetry. The conservator will know that pre-industrial furniture was constructed using only animal glues. With this in mind, he or she would be able to remove any cracked or disintegrating ivory. The next step is to reconstitute the old glue with warm water, apply additional new glue, and clamp the new piece of ivory marquetry in place. What the above illustrates is; that fresh protein glue will reactivate the old protein glue and construct a new protein-linked bond. A more common scenario today is resetting a valuable piece of veneer that has slipped out of position during the gluing-up process. The craftsman would only need to reconstitute the glue, correctly position the veneer and re-clamp it.

Money and materials saved!

True collectors know the value placed upon a piece of furniture, will in fact, be determined in large part by that pieces ability to last the ages. Stay as close as possible to its original condition: In other words. . . the condition when it left its makers workshop.With today's finishes and glues that cure by irreversible chemical reactions, how will it be possible to restore and refurbish the furniture of tomorrow effectively having used those materials?
This is why Aaron Radelow only uses animal glues in the construction of classical cabinetry that can truly bear the title of, Museum quality.

Back to marquetry home...

Chevalet de Marqueterie...

 

 

20460 Camino del Aguila • Escondido, CA 92025
Phone: (760) 781-5302 • Fax: (760) 746-1372
aaronradelow@hotmail.com • www.customwooddesigns.com
© 2003 Aaron Radelow       Last Updated 12/11/2006

Aaron Radelow Custom Wood Designs