At 09:19 AM 10/02/2000, you wrote:
>Hello Luis, in the EAA "HOW TO" series book "Aircraft Building Techniques
>WOOD" page 24 show plans to build a hand held scarfing sander using a drill, a
>small sanding drum (available from Sears) and scrap plywood.
Hi Ray:
yes, I saw that approach and it looks like a great idea, but the problem is
that a drill is intended for intermittent duty, vs. say a bench grinder;
and unless the scarf is short, I don't think the drill motor would last
that long. I went to a place locally (Skycraft) where they sell tons of
great goodies such as aerospace industry leftovers and other interesting
junk, but the only electric motor I could find (that would do the job)
weighed approx. 10 lbs. Then I had to figure a way to install either a
drill chuck or another way to secure the sanding drum. So I gave up on that
idea.
After reading several articles covering scarf joints I decided to purchase
an electric planer which cost me around $65. Several boat builders use this
type of planer with success (I guess all I need is practice). So I will try
that and see what happens.
I appreciate your feedback and will let the list know how my scarf joints
turn out.
>I have made scarfs on plywood for wooden boats using a small had held plane ,
>it takes a very sharp blade, a nice flat work bench, a straight edge to check
>your progress and lots of patience.
>If you are using the newer glues such as epoxy then I don't think that the
>warning about not sanding the joints to be glued is as critical, you can use a
>scraper to go over the sanded joint if it makes you sleep better.
I suppose that a rougher surface would be better than a slick one for any
adhesive. Again, I'm fairly new to wood construction so am still taking
baby (Fly Baby) steps. From what I've read though, I think I'll use the
T-88 epoxy.
Again, thanks for the feedback.
Luis Hernandez Jr.
CEO
Payne Corporation
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