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Two Mandolins #4: Mando And Archtop # 4

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Blog entry by Texcaster posted 12-17-2014 07:06 PM 1311 reads 0 times favorited 4 comments Add to Favorites Watch
« Part 3: Mando and Archtop Part 4 of Two Mandolins series Part 5: # 5 Opening The ff's »

Update. The top is well advanced now. I didn’t take pics fitting the tone bars, the process is mocked up using the back. Both sides of the bar are scribed. Because it is a compound curve the scribe lines are different on either side. Chalk fitting.

Sanded to 180 and sealed.

Oversize and offset tone bars as per Gibson’s innovator Lloyd Loar.

Ball point taped to a block, the block is flipped for a finer scribe. The bars are oversize in case we need to scribe more than a few times.

Finished bars, time to tidy up the inside.

Tools used to shape the tone bars.

Mini Update, 12-20-14. Not much will be happening until the new year.

The top glued to the rim. I didn’t see the photo op till I looked at the camera screen. I called in the birds!

-- Mama calls me Texcaster but my real name is Mr. Earl.



4 comments so far

View Rick  Dennington's profile

Rick Dennington

5183 posts in 2662 days


#1 posted 12-18-2014 02:11 AM

The mandolin is shaping up nicely, Bill…I didn’t realize that Gibson used such long tone bars…I don’t remember mine being that long when I fitted mine to my mandolin….I have a 1951 F 12 Gibson, and I’ve never checked them out that close…..I only know 2 people who own a Lloyd Loar mandolin…both are 1923 F-5s….One is /was Bill Monroe, and the other is Doyle Lawson…..Marty Stuart may own one, but not sure…..Keep posting your progress…I find it interesting, and anxious to see the results when you are finished…...

-- At my age, an "all--nighter" is not having to get up and pee...!!!

View Texcaster's profile

Texcaster

1140 posts in 1142 days


#2 posted 12-18-2014 11:09 AM

Thanks for commenting Rick.

I’m fooling around with the design on this one. It’s neither A nor F, its 15mm wider, 7mm longer and the top is carved more like the bottom. The braces near the tailpiece are outside the recurve. The braces near the neck …. well, we’ll keep tapping till it sounds right. The top had a lovely tap tone untill the tone bars were added. We had to carve the bars to get the tone back. The tone will change again when the ff’s are cut and change again when glued to the rim. That’s the fun chasing the tone, at this stage not much timber needs to be removed to change the tone.

-- Mama calls me Texcaster but my real name is Mr. Earl.

View AnthonyReed's profile

AnthonyReed

8743 posts in 1908 days


#3 posted 12-18-2014 05:28 PM

Fascinating.

Thanks Bill.

-- ~Tony

View Texcaster's profile

Texcaster

1140 posts in 1142 days


#4 posted 12-19-2014 09:01 PM

Thanks for all your support Tony.

-- Mama calls me Texcaster but my real name is Mr. Earl.

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