"Weissenborn" Style Lap Steel Guitar

I've been a big fan of Ben Harpers music for a long time - he uses Weissenborn guitars to get a unique sound. The guitar is played flat on your lap and features a hollow neck. It sounds somewhat like a Dobro or National guitar and uses similar open tunings. And it is played using a slide (as there are no actual frets, just markers)

I bought some full-size plans from Stewart-MacDonald top give me a head start. Timber choice was the next decision. Stable, quarter-sawn stock is a necessity for an acoustic guitar. I also didn't want to spend a fortune as it is my first attempt. So I used spalted Sycamore for the top (from the same plank I made the Krenov Cabinet) and Paduak for the sides and back. This was from planks I have had in the workshop seasoning for over four years.

Started 27th March, 2008

 

I started by ripping off 3.5mm thick veneers on the bandsaw. Take it slow and easy and fit a new blade if possible to give a clean cut.
I edge jointed the pieces for the soundboard, giving a bookmatch effect.
Carefully plane and sand the soundboard to a uniform thickness (0.110" in this case)
Next to inlay the rosette.

I used a scalpel blade pressed through an offcut of timber to cut the three circles - two for the outline of the rosette and one for the actual soundhole. Put a nail through the centre as a pivot point and slowly cut around, deepening the blade every rotation.

 

Here the cuts are almost complete (I left the centre cutout until the rosette was scraped level)
Using a router remove material between the two line for the rosette. Don't go too close to the edges - the material is very delicate.
The inlay completed! Wipe in some glue and clamp with a waxed caul until dry. A quite scrape and sand and then the soundhole can be cut through.
Nest the headstock. I cut this from quartered paduak.

To make the headstock I made templates from the plans to lay out the cuts. Then the angled cuts were made using a tenoning jig on the table saw.

Finishing up on the bandsaw.
After some final sanding it was complete. Set it to one side until needed later.

Here are the two templates I made from 6mm MDF.

Next I began to glue on the braces and grafts to the soundboard.

A backing board is essential to give a solid surface to clamp to. I made mine from an offcut of 32mm kitchen worktop.

Use cauls to apply even pressure where needed.
With all the braces and grafts in place it is time to thin down the braces. Using a chisel pare them into a rounded pyramid shape and taper the ends.
That's the soundboard complete!

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