This is a handy notching tool

Wood choice logic, brace shapes, braces patterns -- what and why for the "heart of the guitar"
Dave Bagwill
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Joined: Tue Dec 13, 2011 7:44 pm

This is a handy notching tool

Post by Dave Bagwill » Sat Jan 12, 2013 8:00 pm

So I was about to notch a brace and decided this might work. It works great and relieves a bit of anxiety (for me) as well. A cheap plastic holder with a hack saw blade; an extra washer to keep the blades parallel and 1/4" apart (I'm using 1/4" braces but the adaptation to 5/16" would be a snap); another hacksaw blade, a little tape.
You can cut right there on the spot instead of marking two lines and making two cuts; or you can make one line and transfer the brace to something like Ken's neat angle sawing jig and cut the slot in one cut. I will no doubt refine this but it works as is. Any ideas to improve it for the good of the realm?
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forum 005.jpg (151.76 KiB) Viewed 906 times
Cutting right on the spot.
Cutting right on the spot.
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Just an overall view of things
Just an overall view of things
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Poor pic - this is the brace (1/4" stick actually) up against Ken's angle cutter.
Poor pic - this is the brace (1/4" stick actually) up against Ken's angle cutter.
forum 006.jpg (167.15 KiB) Viewed 906 times
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Dave Bagwill
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Joined: Tue Dec 13, 2011 7:44 pm

Re: This is a handy notching tool

Post by Dave Bagwill » Sat Jan 12, 2013 9:18 pm

I've thought of a few ways to make this - just any method to keep two blades 1/4" or 5/16" apart (outside measurement) and parallel, and also with only 1/2 brace height exposed, will do the trick.


I wonder if this would work for notching the kerfing/rim for brace ends? Adjust the exposed part of the blade to cut only as deep as you want?
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Dave Bagwill
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Joined: Tue Dec 13, 2011 7:44 pm

Re: This is a handy notching tool

Post by Dave Bagwill » Sun Jan 13, 2013 4:46 pm

So I've been practicing on scrap pieces of bracing. Here is the method I've come up with that has its advantages - no 'creeping up' on the correct depth or angle, no having to eyeball approximate angles (for those with good eyes that is not a problem, for me it is) and virtually just a one cut per brace and you're done, since the 2 blades are fixed and parallel and work together. . Like I said, for a geezer like me this makes it goof proof.
Attachments
Set the angle
Set the angle
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Transfer angle to brace - only one scratch mark or line is needed.
Transfer angle to brace - only one scratch mark or line is needed.
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Put a mark or pencil line at the 1/2 height of the brace. This Rocker tool is great for that and other things.
Put a mark or pencil line at the 1/2 height of the brace. This Rocker tool is great for that and other things.
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Line up the tool on the scratch/line you put on the top of the brace.
Line up the tool on the scratch/line you put on the top of the brace.
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Turn the other brace over and transfer the angle.
Turn the other brace over and transfer the angle.
forum 005.jpg (106.39 KiB) Viewed 880 times
Voila!
Voila!
forum6.jpg (106.45 KiB) Viewed 880 times
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Dave Bagwill
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Re: This is a handy notching tool

Post by Dave Bagwill » Sun Jan 13, 2013 8:04 pm

This is the tool - HF under $2 if I remember. You can just cut one blade in half, no real need to purchase a second blade, I just had one laying around.
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TonyinNYC
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Joined: Sat Dec 17, 2011 9:00 pm

Re: This is a handy notching tool

Post by TonyinNYC » Tue Jan 15, 2013 11:40 am

Thats pretty neat Dave, but that X-brace is not really going to work. Its a bit short.

Dave Bagwill
Posts: 5951
Joined: Tue Dec 13, 2011 7:44 pm

Re: This is a handy notching tool

Post by Dave Bagwill » Tue Jan 15, 2013 11:46 am

I glue on extensions to get out towards the rim.



Not.
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TonyinNYC
Posts: 1510
Joined: Sat Dec 17, 2011 9:00 pm

Re: This is a handy notching tool

Post by TonyinNYC » Tue Jan 15, 2013 11:47 am

Sounds about right.

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