Sanding and Joining

After resawing the blanks for back, top and sides are about 5mm thick which is ways too much to build a fine instrument.

To make them thinner I use my shop made thickness sander which is basically a table which is attached to a hinge on one side and lies on a bolt on the other side. On top of the table is a metal cylinder coated with sandpaper which is driven by a motor. The cylinder lies parallel to the table and by turning the bolt the gap between cylinder and table can be varied. No rocket science, a pretty straightforward and simple concept which nevertheless works well and with sufficient precision, once you know how to use it. 

Before I made that machine I use handplanes to thin the boards which took me about five times longer…

Depending on the wood and part I sand the boards to 3.7 to 2.5mm. Then I join the two halves of the top and the back and glue them together.

 

Resawing

I recently started building two Steel String Guitars.

To get the sides and backs I needed, I cut pieces of about 5mm thickness off a thicker board. This is done on the bandsaw which is equipped with a fence to guide the blade of the saw and make sure the cut is straight and the thickness of the board is going to be even. Because my saw is rather small for this task, mounting and adjusting the fence is crucial and takes quite a bit of time and patience. 

The result is a back and sides of Pear and another set out of Walnut. The next step will be to sand the boards to thickness and to join them.