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Old August 15th 06, 05:18 AM posted to rec.aviation.homebuilt
flybabybuilder
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Default Scarf Joints in Plywood

The classic Bingelis library has info on setting up a motor and a
sanding drum, but that's probably overkill for 1/16 unless you're doing
a lot of it.

If your plane isn't razor sharp, a long sanding block with medium grit
will work fine. Just be sure to blow the dust off (do not use a tack
cloth). Rich is right - the plies will give you a good visual
indication. They should be evenly spaced.

You might plan on having some extra at the other end (if possible) in
case you mess up and have to cut a strip off the end. Practice on a
piece or two.


Rich S. wrote:
"Kyle Boatright" wrote in message
. ..
One of these days, I'm gonna dust off the Hatz project, and when I do,
I'll need to make some scarf joints in 1/16" ply.

Suggestions?

KB


Kyle........

It's not a big deal and you do not need a fixture. A scarf for 1/6" ply is
1" wide. Make a pencil line on each area to be scarfed 1" back from the
edge. Draw a bunch of lines from that mark to the edge to give you a visual
when you are removing wood.

Using a quick-clamp, clamp the ply to the workbench in front of you so the
right edge of the ply is at or just a BCH over the right edge of the work
surface. Using a razor sharp 5" or 6" plane, taper the edge of the ply
evenly from the mark to the edge. The plies will become visible as you
remove the material and give you and excellent guide to keep it even.

It takes only a few seconds to make a perfect scarf this way and you'll
enjoy the process.

Rich S.