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invisible repair.

Posted: Wed Apr 23, 2014 3:35 pm
by Joe Williams
I'm recycling an old piece of wood for a guitar top (lightly spalted Maple). From it's previous incarnation, there are 4 little (less than 1/8 inch) screw holes that there was no acceptable way to exclude. Who has the best method for patching them?

Re: invisible repair.

Posted: Wed Apr 23, 2014 4:35 pm
by Steve Senseney
You can use a plug cutter (or cut with a chisel) and inlay intact wood into the holes.

You can place the holes in a place where hardware (pickups or controls) cover the defect.

You can place inlays of interesting wood design, or pearl into the materials.

If you use Hot hide glue, the glue lines will nearly disappear. Light colored maple may be the hardest wood to hide glue lines however.

Always practice on scrap first.

Re: invisible repair.

Posted: Wed Apr 23, 2014 5:00 pm
by Joe Williams
Acoustic, so no hardware. Don't think it's a place where contrasting inlay makes much sense, but I'll think more about that.

Re: invisible repair.

Posted: Wed Apr 23, 2014 7:55 pm
by John E Giarrizzo
Joe,

I know you said it is no place for contrasting inlay, but this is what I did for a piece of maple salvaged from a kitchen table that had screw holes in it. At first I thought of just plugging with a contasting wood, but didn't like it, so put an inlay in.

Not quite invisible, but maybe something to think about.
Jeg mimf1 100_3931.jpg
Jeg mimf2 100_4170.jpg
Jeg mimf3a dscn0202.jpg

Re: invisible repair.

Posted: Thu Apr 24, 2014 2:12 am
by Michael Lewis
Spalted maple for an acoustic guitar top? From a structural perspective there are much better candidates.

Re: invisible repair.

Posted: Thu Apr 24, 2014 1:58 pm
by Mario Proulx
John, great job on the fiddle!

Re: invisible repair.

Posted: Thu Apr 24, 2014 2:51 pm
by John E Giarrizzo
Thanks Mario.

Hopefully give Joe some ideas on using recycled material. Almost everything I build is from recycled or non-standard material.

Re: invisible repair.

Posted: Thu Apr 24, 2014 3:02 pm
by Daryl Kosinski
How about ripping along the grain right through the hole jointing and regluing. No more holes and almost a grain match. A picture would be nice.

Another thought would be to countersink the hole, make a wood look alike flat head screw head, slotted or Philips, glue that in the hole, why hide it make it a feature. Or even cut off a brass screw and glue it in.

If someone asks why just say you were screwing around.

Re: invisible repair.

Posted: Fri Apr 25, 2014 7:52 am
by Steve Senseney
I love the inlay on the violin!

Re: invisible repair.

Posted: Fri Apr 25, 2014 9:17 am
by John E Giarrizzo
Thanks Steve.

Re: invisible repair.

Posted: Mon Apr 28, 2014 9:43 am
by Clay Schaeffer
With a small carving tool you could gouge a small irregular shape, fill it with wood, and with creative use of a sharpie add some Faux spalting to camouflage the fill. Another possibility - You could cross cut some twigs and inlay them into the holes. they will appear to be small knots in the wood. I have done that to repair defects in furniture.
As small as they are, just leaving them might look as good as anything else. When I have bug holes in rosewood I just fill them with black epoxy (or not). They fade into the beauty of the wood.