harp ukulele project - Gluing down the bridge...
Re: harp ukulele project blog
It's looking great so far! Thanks for the mock up pic. I like how the two rosettes look. Excellent!!
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Re: harp ukulele project blog
Thanks Tony,
I am moving along; I put in the end wedge today and have the top glued down. Doesn't everyone have the wedges thin to wide front to back? Oh well so it goes, a design feature! more aerodynamic! I am sure the reverse direction will improve the tone. Gluing down the top was interesting. Usually I use the mold to hold the shape when I glue the first plate down. I decided not use the mold because my mold is thicker than the harp peg head block. What I did instead was, while properly aligned in the mold, mark all of the braces on the kerfling and used a pencil in key places to mark where the body was supposed to end up. When the kerfling rebates were routed and the brace ends trimmed properly, I was able to re-align the body without a mold using a combination of the braces in the rebates and my alignment marks. I just used nearly every clamp in my shop to hold the top down. I did end up with even squeeze out all around.
I did have two things go right for me today. With a guitar one can center the two end blocks in the mold and on the top and call it good. That is where I was at when I thought it would really look bad if the top rosette on the narrow harp neck was not centered. A very small misalignent on the ulkulele part of the instrument can multiple to a significant error up the harp neck. Luckily I caught the error I did have and made sure the rosette was centered. Also I found by hook or by crook, I only needed to add one more t-bolt to make my carrier fit the instrument.
Overall today was the day that I am starting to understand the luthiers that like to work without molds.
I am moving along; I put in the end wedge today and have the top glued down. Doesn't everyone have the wedges thin to wide front to back? Oh well so it goes, a design feature! more aerodynamic! I am sure the reverse direction will improve the tone. Gluing down the top was interesting. Usually I use the mold to hold the shape when I glue the first plate down. I decided not use the mold because my mold is thicker than the harp peg head block. What I did instead was, while properly aligned in the mold, mark all of the braces on the kerfling and used a pencil in key places to mark where the body was supposed to end up. When the kerfling rebates were routed and the brace ends trimmed properly, I was able to re-align the body without a mold using a combination of the braces in the rebates and my alignment marks. I just used nearly every clamp in my shop to hold the top down. I did end up with even squeeze out all around.
I did have two things go right for me today. With a guitar one can center the two end blocks in the mold and on the top and call it good. That is where I was at when I thought it would really look bad if the top rosette on the narrow harp neck was not centered. A very small misalignent on the ulkulele part of the instrument can multiple to a significant error up the harp neck. Luckily I caught the error I did have and made sure the rosette was centered. Also I found by hook or by crook, I only needed to add one more t-bolt to make my carrier fit the instrument.
Overall today was the day that I am starting to understand the luthiers that like to work without molds.
Last edited by John Parchem on Sun Jul 08, 2012 8:49 pm, edited 1 time in total.
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Re: harp ukulele project blog
I dunno about building a harp uke, but this post looks suspiciously like a clamp breeding experiment to me (lol).
Just when you think you're getting ahead in the rat race, the rats get faster.
Re: harp ukulele project blog
John:
It's looking GREAT!!!! You handled the problem of the too-tall mold really well --- I am really impressed with what you've done so far!!! Good observation on making sure to check that the harpbox soundhole was centered. I love all your cam clamps --- that photo reminded me of an old Acoustic Guitar magazine's cover photo of Jeff Traugott's soundbox being clamped with a zillion cam clamps --- it looked really artistic to me, for some reason. Also, I think you're right --- your end wedge design might well end up producing better tone...
I love keeping up with your blog of this build....
It's looking GREAT!!!! You handled the problem of the too-tall mold really well --- I am really impressed with what you've done so far!!! Good observation on making sure to check that the harpbox soundhole was centered. I love all your cam clamps --- that photo reminded me of an old Acoustic Guitar magazine's cover photo of Jeff Traugott's soundbox being clamped with a zillion cam clamps --- it looked really artistic to me, for some reason. Also, I think you're right --- your end wedge design might well end up producing better tone...
I love keeping up with your blog of this build....
Kathy Matsushita
http://theamateurluthier.com
http://theamateurluthier.com
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Re: harp ukulele project blog
hey John, could I borrow a dozen cam clamps? I think you will still have plenty to use!!!! Sheesh.
Well anyway, you are making awesome progress on this deal, and it looks wonderful so far.
What a cool project, and Kathy, yours is coming along nicely too! How does it feel to be retired???
Keep the pics coming John.
Kevin
Well anyway, you are making awesome progress on this deal, and it looks wonderful so far.
What a cool project, and Kathy, yours is coming along nicely too! How does it feel to be retired???
Keep the pics coming John.
Kevin
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Re: harp ukulele project blog
Thanks all,
I am not sure that one can ever have enough cam clamps. I use them a lot.
John
I am not sure that one can ever have enough cam clamps. I use them a lot.
John
Re: harp ukulele project blog
Kevin: Thanks for the kind words --- and, as for retirement, I'm loving it!!! Of course, it doesn't feel too much different yet, as I have always had summers off, but once school starts up again, I think that's when it will truly feel different! It does feel different, though, in the sense that I don't feel the pressure to finish the project with a set deadline --- and, as a result, I think I'm being more careful and painstaking in what I'm doing...Kevininca wrote:What a cool project, and Kathy, yours is coming along nicely too! How does it feel to be retired???
Kevin
Kathy
Kathy Matsushita
http://theamateurluthier.com
http://theamateurluthier.com