First top method

Wood choice logic, brace shapes, braces patterns -- what and why for the "heart of the guitar"
Ray Ussery
Posts: 662
Joined: Wed Dec 21, 2011 12:51 am

First top method

Post by Ray Ussery » Mon Mar 10, 2014 10:01 am

This is my first top...Western Red Cedar...

Method:

Image

Top...glue line...finish side...now what do I do with the glue line? Just block sand or RO? It's been 12 hours...

Image

Thanks, Ray

ken cierp
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Joined: Tue Dec 13, 2011 11:23 pm

Re: First top method

Post by ken cierp » Mon Mar 10, 2014 10:17 am

Scraper blade to clean off heavy spots then run it through the thickness sander. The bowed seam caul should have a slot in the center. This will allow the squeeze to bead rather than be spread. The slot also is helpful when installing a center stripe in the back. There is then no concern with the height of the strip. It can be shaved down after the joint dries.

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

Re: First top method

Post by Dave Bagwill » Mon Mar 10, 2014 10:26 am

Could you explain the 'bowed' caul and the slot?
-Under permanent construction

ken cierp
Posts: 3924
Joined: Tue Dec 13, 2011 11:23 pm

Re: First top method

Post by ken cierp » Mon Mar 10, 2014 2:53 pm

I'll post some pixs when I get a chance.

Kevin in California
Posts: 2824
Joined: Mon Dec 19, 2011 4:19 pm

Re: First top method

Post by Kevin in California » Mon Mar 10, 2014 7:31 pm

Ken I like that idea about the groove for the glue line, I will put that in my clamping board. I use a piece of maple that is about 1" thick by 2.5" wide, with a slight bow, works great for clamping that seam down.

Kevin

Ray Ussery
Posts: 662
Joined: Wed Dec 21, 2011 12:51 am

Re: First top method

Post by Ray Ussery » Mon Mar 10, 2014 9:26 pm

Yes.. that piece of oak had a natural bow in it...(I picked it that way) so when I pulled the ends down (Maybe 3/32) it clamped the center I believe, as well as the end area...OR so it seemed anyway...could be what Ken is talking about.

Thanks for your input Ken and Dave and Kevin...the "Channel" sounds great...not sure how wide...but sure makes sense, cents...ahh since....one of those! Ha!.

Ray

ken cierp
Posts: 3924
Joined: Tue Dec 13, 2011 11:23 pm

Re: First top method

Post by ken cierp » Tue Mar 11, 2014 11:13 am

Yep that's the idea --bowed in the center so it pushes down as you tighten the end clamps. Slot size is non critical about 1/4" x 1/4" or so. I would suggest clamps with better compression than cam-clamps just to make sure the blocks don't slide as the wedges are tapped in place to tighten.

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