Non Linier Gizmo for introduction of the curviness
© Walt Nollan
Jun 20th, 2009
How's that for a title? Took me a while to think of that.
OK! I was requested to show how I made the
overlapping scrolls. I started out with 3/4" MDF to make 4
templates. Also 3 stacks of 30 pieces of contrasting wood,
Lyptus, Walnut and Paduck. Each piece is 2"x2"x3/8". From
my drawing I determined that I needed a 4" diameter arc for the
scrolls. From doing many years of flat work, as most of us have,
I know any imperfection in the template would be transferred to my
wood. So after cutting the arc's on a band saw I sanded them
using a drum sander and by hand to finesse the curves on all four
pieces. They have to be perfect! I then added support
strips and a holding clamp so every piece will be cut in the same place
every time.
Then it a matter of drawing the first arc's on all the pieces and cut
close to them with a scroll saw. Once all the pieces are cut it
is time to route the pieces using the templates. Then clean each
piece of clingons and glue them all up. I made a glue jig for
that. I held each glued up piece for about 30 second to let the
glue set and then taped them up. No clamps just tape pulled
tight. Note. The segmented plexi-glass thing my LOML gave
for Christmas 5 years ago finally got used, as a clean work surface
Once all the pieces are dried the process starts all over but using the
other two templates. Which have the supports relocated about 5/16"
south. Then they are cut on the scroll saw, routed, cleaned and glued
up in the same manner. When done I end up with what you see in picture
#2 below.
Then the process starts all over two more times only the pieces are flipped to get the arc's going in the opposite direction
When done you end up with pic #1 below. Then cut the pieces with
the require angel and glue up pairs, quads, halfs and the whole
thing. Then glue it to the bowl and Wa La! Hope that
explains it for you. It was quite an undertaking but I think it
was well worth it. I've got another design rolling around in my
head. One of these days I'll put it to wood!
Discussion Link
Walt.
|
