Might use a vacuum to glue the veneer.
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| Rear of Headplate http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=40535 |
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| Author: | enricopg [ Sat Jun 01, 2013 1:04 pm ] |
| Post subject: | Rear of Headplate |
Sometimes you see these wonderful jobs and I wonder how they are made: http://www.guitargal.com/sites/default/ ... wgahd2.jpg |
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| Author: | Chris Pile [ Sat Jun 01, 2013 1:27 pm ] |
| Post subject: | Re: Rear of Headplate |
Elegant! |
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| Author: | timoM [ Sat Jun 01, 2013 1:42 pm ] |
| Post subject: | Re: Rear of Headplate |
It looks like an Olson to me, except most have his newer guitars have his logo on the Gotoh 510's. inspecting one of his guitars up close was pretty humbling for me. The attention to detail is something to behold. Tim |
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| Author: | Lavrov Guitars [ Sat Jun 01, 2013 2:10 pm ] |
| Post subject: | Re: Rear of Headplate |
Olson had a different headstock. Looks more like a Ryan. Really elegant |
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| Author: | enricopg [ Sat Jun 01, 2013 2:15 pm ] |
| Post subject: | Re: Rear of Headplate |
It is a Schwartz guitar. I don't know if I am allowed to post links. Anyway, it was not my intention to advertise anybody. I could have pointed to some other luthier. The question is how do you get that smooth curve on the rear of the headstock? You start with a thicker headplate and smooth it on a drum sander? Then you need a perfectly shaped caul to glue the veneer. |
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| Author: | Bryan Bear [ Sat Jun 01, 2013 2:48 pm ] |
| Post subject: | Re: Rear of Headplate |
enricopg wrote: It is a Schwartz guitar. I don't know if I am allowed to post links. Anyway, it was not my intention to advertise anybody. I could have pointed to some other luthier. The question is how do you get that smooth curve on the rear of the headstock? You start with a thicker headplate and smooth it on a drum sander? Then you need a perfectly shaped caul to glue the veneer. That's how I did it on the last one. Though it is important to note that my work is nowhere need the same league! I cut close to the curve on the bandsaw the. Fed the headstock face down into the drum sander. I made s shaped caul close to the curve then clamped the rear veneer with some high density closed cell foam between the headstock and caul. It all got clamped down really hard and the foam made up for the not perfect fit of the caul. It came out nice and I will use the method again. |
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| Author: | mkellyvrod [ Sat Jun 01, 2013 2:52 pm ] |
| Post subject: | Re: Rear of Headplate |
Might use a vacuum to glue the veneer.
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| Author: | SteveG [ Sat Jun 01, 2013 2:56 pm ] |
| Post subject: | Re: Rear of Headplate |
Tutorial for a similar one here: viewtopic.php?f=10101&t=25874 cheers |
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| Author: | Colin North [ Sat Jun 01, 2013 2:56 pm ] |
| Post subject: | Re: Rear of Headplate |
Looks similar to the one in my avatar. I thickness the headstock on the drum end of my belt sander (with a jig) and bend the backplate to fit the curve left behind the nut area. Then glue it on using a 18 mm birch ply plate (lined with cork) curved to fit. Shape freehand like in the tutorial above. Some people do them on their thickness sander or a drum sander/fence in a pillar drill. Slipped in a bigger picture: |
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| Author: | enricopg [ Sat Jun 01, 2013 3:38 pm ] |
| Post subject: | Re: Rear of Headplate |
Thanks for the replies and the great tutorial. That was exactly what I was looking for. One question: what is closed cell foam high density? Thanks |
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| Author: | Robbie_McD [ Sat Jun 01, 2013 6:21 pm ] |
| Post subject: | Re: Rear of Headplate |
Hey Arnt, thanks for posting the link - great tutorial! I am going to use this: "Fitting a nut before the final shaping of the neck is always a good idea" |
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| Author: | nickinbruns [ Sat Jun 01, 2013 8:19 pm ] |
| Post subject: | Re: Rear of Headplate |
Back of the Tenor headstock I'm building for the newbie challenge..... Attachment: image.jpg Just toook it down to 1.5mm, bent it of the pipe, and found a scrap of wood that more or less fit the curve, and clamped the sucker on there...I've done a couple like this and found that making the bend a tiny bit more open...ie: a gap in the bottom of the bend while the two ends touch well, allows the veneer itself to seat nicely when the bend is clamped in tight.... Don't know if that description made sense.....
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| Author: | Stuart Gort [ Sat Jun 01, 2013 8:46 pm ] |
| Post subject: | Re: Rear of Headplate |
My friend Joel Stehr here in Spokane does this. He shapes the rear of the headstock and glues the laminates with a caul as described above. |
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| Author: | enricopg [ Sun Jun 02, 2013 12:56 am ] |
| Post subject: | Re: Rear of Headplate |
Wow, nice. |
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| Author: | Tai Fu [ Sun Jun 02, 2013 3:42 am ] |
| Post subject: | Re: Rear of Headplate |
What if you thin the headplate to thickness, then bend it in a bending iron so that it's slightly less curve than the headstock back curve (ie. a little bit of spring back), then just glue it on like normal, the spring back would provide some pressure to keep it tight... |
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| Author: | LarryH [ Sun Jun 02, 2013 9:22 am ] |
| Post subject: | Re: Rear of Headplate |
Wish I had seen this thread before. I ended up with the same technique(s) illustrated with trial and error. Not that hard to do for the uninitiated. |
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| Author: | jfmckenna [ Sun Jun 02, 2013 9:30 am ] |
| Post subject: | Re: Rear of Headplate |
I like the nice curves but have never been a fan of back plates ![[uncle]](./images/smilies/surrenderflagqv6.gif "Uncle")
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| Author: | Robert Renick [ Sun Jun 02, 2013 10:22 am ] |
| Post subject: | Re: Rear of Headplate |
http://www.avtcomposites.com/cgi-bin/co ... FR4305.250 This is closed cell high density foam, it is quite strong, pinching it between your thumb and forefinger requires most of your strength before it dents, so I can see how it would help match the caul to the work. I did just vacuum one of these last week with nice results. |
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| Author: | SteveSmith [ Sun Jun 02, 2013 3:10 pm ] |
| Post subject: | Re: Rear of Headplate |
Here's one I've got in work. It's ebony and I did it just like in Arnt's tutorial. Not too hard at all. Attachment: Backstrap.jpg
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| Author: | Ken C [ Sun Jun 02, 2013 8:39 pm ] |
| Post subject: | Re: Rear of Headplate |
I have been putting backplates on my last several guitars. I found if the laminates were no thicker than 40 to 50 thou, they would conform to the back of the headstock with a tight fitting caul. My upsweep is not too steep, just 15 degrees to put the smile volute on the same plane as the neck. I typically used two contrasting lams to provide a pin around the profile of the headstock. I glued the laminates on using epoxy prior to routing the headstock profile. However, the customer of one of the guitars I just strung up wanted the koa laminate bound. This forced me to revisit my approach, and I bound the back plate prior to gluing it on. It's a cool look, but does require some extra effort. Ken Attachment: IMGP7964.jpg Attachment: IMGP1281.jpg
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| Author: | Arnt Rian [ Mon Jun 03, 2013 8:34 am ] |
| Post subject: | Re: Rear of Headplate |
I had forgotten about that "turorial", nice to see folks still find it useful. One thing to keep in mind with these vulutes or whatever you want to call them, is that depending on their geomtry, they can get in the way of a McKenney type capo, if you intend to store them behind the nut when not in use (Tony Rice style). If you make it "short" enough, its not a problem, but you have to consider it when you design the thing. |
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