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Location: Lake Forest, CA | It was a two-step process.
I used a Dremel fiberglass cut-off wheel to cut out the majority, then a Dremel drum sander to open it up to the final shape. |
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| DanSavage - 2019-08-28 11:47 AM
With this, the bowl is pretty much done and ready to have a top mounted and purfling/binding installed. 
Edited by DarenSavage 2019-09-01 12:00 AM
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Location: Lake Forest, CA | DarenSavage - 2019-08-31 9:59 PM
This looks to be about 90% ready for a shiny bowl. As we know, the last 10% takes 90% of the time to complete.
Yep. I had prepped it for splashing the mold, so most of the priming is already done. There are a few nicks here and there, but other than that the fabric print-through is already mitigated.
I'm even thinking of a satin bowl. It would look pretty cool with polished black body binding. |
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Location: Lake Forest, CA | There was one last job that I needed to do to the bowl before it's ready to close -- labels.
I decided to give it a model number after all. It's the 1619-X. Natch, I used the classic Custom Legend gold foil label.
As I wrote previously I needed a label to hide the third bolt hole in the neck block, so I added a variant of my 'Rebuilt by" label. 
The top is built and ready to be joined with the bowl. I'll be setting up for that job tomorrow. After that, it's time to route the grooves for the binding/purfling, and then the bowl is mostly done except for masking the bridge and finishing. Now, if only my pearl order from the land down under would arrive. Until then, I'm in a holding pattern.
Edited by DanSavage 2019-09-01 6:37 PM
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| Very cool! I like the 1619-X and Black Pearl labels. This will definitely be a one-of-a-kind O, and dare I say, calendar worthy? 
Edited by DarenSavage 2019-09-02 6:27 PM
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Location: Lake Forest, CA | DarenSavage - 2019-09-02 4:09 PM
Very cool! I like the 1619-X and Black Pearl labels. This will definitely be a one-of-a-kind O, and dare I say, calendar worthy?
Thanks!
I got the top glued to the bowl today. I'll take it out of the fixture tomorrow morning and see how it went.
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| Kewl! Can't wait to see.
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Location: Lake Forest, CA | Here's the obligatory top-being-glued-photo. :D JK. Actually, what this photo shows is setting the neck angle while gluing on the top.
Unlike re-topping an OEM guitar, I needed to establish the correct neck angle. I used the same technique as I used on Jen Chapin's 1613.
I clamped the neck, then weighted the bowl with a sand bag. I adjusted the legs to set the neck angle. Once the top was glued, I used my original bowl bend jig and rubber bands to clamp the top to the bowl. 
Edited by DanSavage 2019-09-02 7:23 PM
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Location: moline,illinois | Very cool,awesome work as always Dan and love seeing things come together 
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Location: Indiana | This is really a picture of quality and detail. Carry on. DanSavage - 2019-09-01 6:32 PM There was one last job that I needed to do to the bowl before it's ready to close -- labels.
I decided to give it a model number after all. It's the 1619-X. Natch, I used the classic Custom Legend gold foil label.
As I wrote previously I needed a label to hide the third bolt hole in the neck block, so I added a variant of my 'Rebuilt by" label.
The top is built and ready to be joined with the bowl. I'll be setting up for that job tomorrow. After that, it's time to route the grooves for the binding/purfling, and then the bowl is mostly done except for masking the bridge and finishing. Now, if only my pearl order from the land down under would arrive. Until then, I'm in a holding pattern. |
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Location: Lake Forest, CA | First coat of clear is on the top. 
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Location: Yokohama, Japan | Beautiful Dan! The purfling really accents the color and grain of the Adirondack top. Wow! Trying to imagine how much sparkle the abalone rosette will provide...very classy. Btw, the inside of that bowl looks like it's sparkling too. Did you add a touch of resin to clean her up?
Edited by arumako 2019-09-14 11:25 AM
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Location: When?? | Dig that wide grain. If guitars were women, I think this is going to be one I would want to marry. But you can put the shotgun down, Dan, since I don't have the cash to ask for her hand anyway.
Edited by Love O Fair 2019-09-14 12:06 PM
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Location: Lake Forest, CA | arumako - 2019-09-14 9:23 AM
Beautiful Dan! The purfling really accents the color and grain of the Adirondack top. Wow! Trying to imagine how much sparkle the abalone rosette will provide...very classy. Btw, the inside of that bowl looks like it's sparkling too. Did you add a touch of resin to clean her up?
Thanks, Ken.
Actually, my initial plan is to attempt to make a rosette with black MOP instead of pearloid or abalone.
WRT the inside of the bowl, that's the natural fiberglass. Normally Ovation would paint the inside of the bowl to hide the weave of the cloth.
This bowl is a little different from the OEM hand-laid bowls. This one looks to me like it was molded using vacuum infusion. I suspect this was an engineering sample supplied by an outside firm attempting to get the contract for molding bowl. I've never seen a molded bowl like this. It is very thin with absolutely no evidence of the mold release film usually used for molding O bowls.
IMO, whomever made it was a little stingy with the resin, which is why it you can see the weave. When enough resin is infused, as a section of the bowl has, the weave completely disappears (as it should) and you're left with a smooth molded part.
Al,
You're funny. LOL! (Honey! Paint the shotgun white! It's gonna be a formal wedding!) |
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Location: When?? | @Dan - >>>You may remember this bowl. It came with my original 1619. I also splashed a mold off it.<<<
As usual, I'm lost. You said "as near as you can tell" that this bowl was vacuum infused resin, so I assume you meant it is a factory original bowl from your 1619, and not a bowl that you "splashed" from a mold of the original. If it is a factory original, was it a shiny bowl? I ask that not expecting they made a shiny (or smooth) bowl in the 1974-1984 manufacture range of the 1619. Or did they??? Looking at the page 1 photos is just looks so smooth. Unlike typical Lyrachord texture I remember from that era. Did I miss something? I hope these questions make sense. Sorry so lost on this end.. but inquiring minds (at least this one) want to know.
Edited by Love O Fair 2019-09-15 12:21 AM
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Location: Maine | Dan, the project looks amazing! I can't wait to see the final stages.
LOF, I can fill in a few of the blanks. The 1619 Dan is referring to was a project guitar I once owned. For some reason it had part of the bowl back cut out, a large ugly trapezoid cutout. The top was trashed, but the 5 piece neck was complete and in pretty decent shape. The neck assembly was the only thing on the guitar I considered useable. Dan was interested in the neck but asked if I had any other pieces. I showed him a pic of the thin resin bowl and he was interested in that too. A deal was made. At some point, Dan had the clever idea to use the complete bowl (the "Black Peral" one) as a form to mold a fiberglass patch for the 1619 project guitar. While I thought the 1619 bowl was a loss, Dan saw it as a challenge. Now, to know ones surprise , Dan is creating/saving another USA ovation!
-TJR
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Location: Maine | * (the "Black Pearl" one) ...
* Now, to no ones surprise ...
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Location: Lake Forest, CA | Love O Fair - 2019-09-14 9:52 PM
As usual, I'm lost. You said "as near as you can tell" that this bowl was vacuum infused resin, so I assume you meant it is a factory original bowl from your 1619, and not a bowl that you "splashed" from a mold of the original. If it is a factory original, was it a shiny bowl? I ask that not expecting they made a shiny (or smooth) bowl in the 1974-1984 manufacture range of the 1619. Or did they??? Looking at the page 1 photos is just looks so smooth. Unlike typical Lyrachord texture I remember from that era. Did I miss something? I hope these questions make sense. Sorry so lost on this end.. but inquiring minds (at least this one) want to know.
Yes. The bowl looks like it's an unfinished factory bowl. As TJ writes, it came as part of a deal I made when I bought his 1967 1619-4. That was my first Ovation rebuild. (See: 1619-4 Rebuild...)I initially thought it was a sample supplied by some third party. But after looking at my 1619 pics I saw that the unpainted sections of the bowl look the same as the bare bowl. There were several generations of hand-laid cloth bowls. I detailed these in The History of the Bowl thread. 1965-1967-ish, 2-ply cloth bowl hand-laid over male mold. Covered with clear plastic, apply vacuum and scrape excess resin. High-quality, but time-consuming to produce, thus very high cost.
1968-1981, 2-ply cloth bowl hand-laid in a female mold. Early models used no vacuum. These are the cloth bowls you're used to seeing. The weave of the cloth is very visible when looking inside the bowl. Later models used, either vacuum or vacuum-infused inside the female mold. This is what the inside of the 1619 bowl looks like. As far as I know, they're still making cloth bowls this way. This is style of bowl I'm using on the Black Pearl. 
The 1619 was a factory engineering model. It had a hole cut into the bowl that allowed access to the inside of the guitar without loosening the strings.
Interestingly, the braces on that guitar look like they were prototypical. The main transverse brace isn't notched and the fan braces are plain 1/8" stock that hasn't been milled. Also, there is only a piece of 1/8" stock reinforcing the joint between the upper part of the A-braces and the lower fan braces.
In the pic below you can see the 1619 A-braces on the left and a production 1985 1717 A-braces. I've done a 1978 1617 which had the same style seen on the 1985. On later models, the fiberglass joint reinforcement was superceded by a perforated aluminumm piece. 
Edited by DanSavage 2019-09-15 1:25 PM
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Location: Lake Forest, CA | TJR - 2019-09-15 6:30 AM
Dan, the project looks amazing! I can't wait to see the final stages.
LOF, I can fill in a few of the blanks. The 1619 Dan is referring to was a project guitar I once owned. For some reason it had part of the bowl back cut out, a large ugly trapezoid cutout. The top was trashed, but the 5 piece neck was complete and in pretty decent shape. The neck assembly was the only thing on the guitar I considered useable. Dan was interested in the neck but asked if I had any other pieces. I showed him a pic of the thin resin bowl and he was interested in that too. A deal was made. At some point, Dan had the clever idea to use the complete bowl (the "Black Peral" one) as a form to mold a fiberglass patch for the 1619 project guitar. While I thought the 1619 bowl was a loss, Dan saw it as a challenge. Now, to know ones surprise , Dan is creating/saving another USA ovation!
-TJR
Thanks, TJ.
Yes, the molding part was during Patch's Parlor Build... thread. I guess right now, I'm the only one in the world right now that can mold an Ovation Parlor bowl. |
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Location: When?? | Thank you Dan and TJ for the fine and detailed explanations to my questions! I had forgotten about your The History of the Bowl thread, so I crawled back through it for a nice refresher (my aging memory is turning to mush). I highly recommend it to all newer members and lurkers who may be reading this post and may have never seen that thread. Man, just when I thought I knew something about Ovations I find myself still hoping to someday graduate from kindergarten. You guys continue to blow my mind. |
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Location: Maine | Dan, I had to look back to see, but it was your 05/15/2014 post in the original rebuild I had remembered as you molding the patch off the smaller bowl, not a mold for Patch at that time ... lol |
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Location: Lake Forest, CA | Ha ha!
You're right, TJ. I mis-read your comments. When you wrote 'mold' my immediate thought was the full bowl molds, not the patch I made for the 1619. |
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Location: Canada | The bowl history is very interesting. I wonder how this has continued into the more recent times. For example, I have an 1687 RI but assume that it has a SMC bowl and not the period-correct second generation cloth, the paint has come off in places and it is bright white below. Also, I assume that with the overseas AX models their bowls are made right there in China or Korea. Then with the most recent New Hartford/new small shop Adamas they state hand-laid bowl as a feature, and it would be good to know more details about the process they are using now. |
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Location: Upper Left USA | I believe that all bowls (except hand laid) come from the US, Indiana I think.
Yes? |
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Location: Keepin' It Weird in Portland, OR | MWoody - 2019-09-16 10:50 AM
I believe that all bowls (except hand laid) come from the US, Indiana I think.
Yes?
I am not sure about NOW...
But they Used-to be made in Ashtabula, Ohio.
https://www.zehrco-giancola.com/gallery.html
In this gallery photo, there WAS a bowl back guitar...
Notice the empty space in the photo layout?
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The Black Pearl...
