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Mortise & Tenon
Instructions
The next step is to create a matching mortise -
This is most easily done by using the matching tenon and marking
the edges with an X-Acto knife. Make sure you create the etching
marks inside the edges of the tenon so that the soon to be
created hole isn’t too large.
Once you have etched the marks in place, its time to start
creating the mortise. The right tools here will make this
process a lot simpler. An X-Acto knife with a sharp edge and
point is essential, and a chisel is also required.
You’ll find miniature chisel are not easily found, so I think
the best method is to create one of your own. The easiest
way to make a chisel is to start with a small jeweler’s
screwdriver, and size and sharpen the end to a chisel point. The
easiest method I’ve found it by using a moto tool mounted in
such a manor as to prevent it from moving. It is important not
to remove too much metal, or sharpen the edge so much that the
edge gives way while using.
 The best edge is between 25 – 35°,
with a width the same as or narrower than the width of the mortice.
An Important Note: When shaping the chisel do not over heat -
you don’t want the metal to get red hot, as it will loose it’s
temper. Allow the metal to cool often, or douse it in water
often.
Using the X-Acto knife cut the long sides of the mortise – being
careful not to splinter the outer edges by trying to go to deep
before using the newly made chisel to “chisel” out the wood in
the mortise. Repeat this process until you have the depth needed
to fit the tenon is achieved. Use the tenon to check your
process – you want a tight fit.
An Important Note: Each mortise and tenon is matched – make sure
you cut the tenon before the mortise – and then keep note as to
which mortise goes with which tenon.
If you use the templates I’ve provided - construction should be
easy, as I spent a great deal of time making sure each mortise
lined up correctly with each tenon.
Prepared each piece before you begin construction, and once that
is done, stain each piece the color you want. I find that
staining the wood first leads to fewer problems later. It is
important to allow the stain to dry completely before
construction begins.
ASSEMBLY
| I start with the back:
Glue each rail to the Back Rail Top by applying glue to
both mortise & tenon – the fit should be tight – if
needed make any adjustment at this time. Do the same
with the Back Rail Bottom, clamp and allow to dry
completely. Make sure the structure is square. |
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| Once you have
glued this section together – Use the picture to the
left as a guide to check that the assembly is square.
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Miniature Mission Chair - Page
4 |
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