|Preparing the Back|
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|Gluing the back strip reinforcement.
The masking tape provides a visual guide and keeps excess glue off the back.
|The reinforcement is glued and I'm using a tapered stick as a clamping caul. Although they're probably not necessary I added some extra clamps.|
|Here's another view. the masking tape allowed me to easily wipe off the glue squeeze out.||Using a plane to taper the edges and thin the reinforcement.|
|A little work with sandpaper and the back strip is done.||I use a template to draw the arch onto the back braces.|
|And use a plane and shooting board to cut the taper. a quick touch up on the dished form with sand paper and the braces are ready for gluing.||The braces are laid on the back to show their position.|
|The location of each brace is marked and a razor blade is used to cut through the back strip reinforcement.||The brace is used as a template and a second cut is made.|
|It is easy to cut the soft spruce with just a razor blade.||A narrow 6mm chisel is all that's needed to pop out the spruce between the cuts. Use the razor blade as a scraper to clean off the glue that is left.|
|Using a 2nd hollow form and go-bars to clamp the glued braces to the back while forcing the back to conform to the dish.||All the braces can be quickly and easily clamped at one time.|
|A quick word about Go-bars.
This is the first time I've used them. Since I didn't have a deck set up I used the space underneath my workbench. It works like a charm and everything is out of the way so I can use the bench top to work on something else.
|The only problem is that all those
wimpy little rods actually exert a whole lot of pressure! Enough to
lift the workbench top. The temporary solution was to put something
really heavy on the workbench. What you see in the picture is a
freshly rebuilt transmission for a 1962 Lotus Super 7, complete with the
very rare ultra-close ratio gear set.
It's always nice when you can combine your hobbies!
|After the glue dries the braces are ready to be carved.||Trimming the excess off the end of the braces.|
|All done!||Using a plane to thin and taper the braces. Notice the scraper under the plane to keep the side of the plane from denting the back strip reinforcement.|
|Using a 25mm chisel to carve the ramps onto the ends of the braces.||A bit of work with some sandpaper and the braces are beginning to look pretty good.|
|Almost done! All that remains is to fit the back to the sides and trim the ends of the braces for a precise fit.|
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