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| Multi-pieces sides http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=27994 |
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| Author: | Alain Moisan [ Sun Jun 27, 2010 3:19 pm ] |
| Post subject: | Multi-pieces sides |
Hi all. I'm tempted to try multi-pieces sides, although I don't have much knowledge about how to make them. I'm talking about multi-pieces sides such as we can see on many of Howard Klepper's guitars. I'm assuming they are laminates, but I'm not sure about it. So for those who know, here are a few questions: - Are the pieces glued together prior to bending them or after? - What is the best glue for this? - Is there anything tricky I should know about? Thanks! |
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| Author: | WaddyThomson [ Sun Jun 27, 2010 6:50 pm ] |
| Post subject: | Re: Multi-pieces sides |
I know when David La Plante made his guitar with the meander in the center of the sides, he glued it all together before bending, and he used paper on the inside as a support strip, which he left in the guitar. Sort of like using bias tape, in a way. He said you have to bend carefully, but it stayed together. Here is a picture of the guitar. http://www.guitarsbydavidlaplante.com/number%2090.htm |
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| Author: | Alain Moisan [ Sun Jun 27, 2010 6:58 pm ] |
| Post subject: | Re: Multi-pieces sides |
Thanks a lot Waddy! Good and usefull information! |
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| Author: | WaddyThomson [ Sun Jun 27, 2010 7:04 pm ] |
| Post subject: | Re: Multi-pieces sides |
By the way, i don't think it was just plain paper. Something a little tougher. It didn't burn up, or disintegrate during the bending. David will be back from GFA(over today) this coming week, and I'm sure he'd be glad to share the process with you. |
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| Author: | Michael.N. [ Mon Jun 28, 2010 5:39 am ] |
| Post subject: | Re: Multi-pieces sides |
It can be done both ways, although gluing the strips prior to bending is by far the easiest. Just remember to use a glue that can take the heat, something like powdered resin or Hide. The reinforcing strip (traditionally parchment) can be glued on after the sides are bent. |
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| Author: | bluescreek [ Mon Jun 28, 2010 8:50 am ] |
| Post subject: | Re: Multi-pieces sides |
I have done multiple sides also. I used tite bind , once I had the sides glued I taped over the joint with regular masking tape. Bent the sides as usual and they came out fine. I held the heat to under 350 at the blanket. Surprising how resilient glue can be |
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| Author: | Alain Moisan [ Mon Jun 28, 2010 1:20 pm ] |
| Post subject: | Re: Multi-pieces sides |
bluescreek wrote: I have done multiple sides also. I used tite bind , once I had the sides glued I taped over the joint with regular masking tape. Bent the sides as usual and they came out fine. I held the heat to under 350 at the blanket. Surprising how resilient glue can be Thanks John, that sounds promising. Did you reinforce the joint in any way once the sides were bent? Michael.N. wrote: The reinforcing strip (traditionally parchment) can be glued on after the sides are bent. Thanks Michael. What's parchment? |
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| Author: | David LaPlante [ Mon Jun 28, 2010 10:52 pm ] |
| Post subject: | Re: Multi-pieces sides |
The meander inlay was assembled with fish glue and then laminated full thickness using titebond between the cypress side slats. I bent the glued-up side over a hot iron starting with the waist and then upper and lower bouts allowing each section to cool a bit and re-solidify in between. I used a cloth strip for reinforcement (along with a couple of wood strips) though they were glued in at a later stage in the assembly. Attachment: %2390%20002[1].JPG
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| Author: | Alain Moisan [ Tue Jun 29, 2010 8:33 am ] |
| Post subject: | Re: Multi-pieces sides |
Thanks David, I appreciate your input! |
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| Author: | Howard Klepper [ Tue Jun 29, 2010 12:02 pm ] |
| Post subject: | Re: Multi-pieces sides |
When I do a multipiece side, I laminate to an inner side, so separations can be fixed in the laminating stage. |
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| Author: | Alain Moisan [ Tue Jun 29, 2010 3:10 pm ] |
| Post subject: | Re: Multi-pieces sides |
Thanks for your input Howard. For now though, I'd like to avoid laminating if it's possible. If a small reinforcement strip is enough, then so be it. I'll give it a try on some scraps and let you all know how it goes. Thanks a million for the feedback! |
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| Author: | bluescreek [ Tue Jun 29, 2010 4:32 pm ] |
| Post subject: | Re: Multi-pieces sides |
there is more than one way to do this , It is great to see others techniques |
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| Author: | MacD [ Tue Jun 29, 2010 5:10 pm ] |
| Post subject: | Re: Multi-pieces sides |
This is a guitar I started building about 15 years ago and never got around to finishing. The sides are inlaid rather than multi-piece, but if you want a thin line on the sides it's probably an easier technique. The lines were assembled and inlaid with titebond about 0.8mm deep, and the sides were bent freehand on a bending iron with no reinforcement and no support other than hands. As I recall, the sides cupped a little during bending but nothing serious. The guitar is a Panormo style classical with rift-sawn BRW sides. Cheers, Bri |
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| Author: | Alain Moisan [ Thu Jul 15, 2010 11:17 am ] |
| Post subject: | Re: Multi-pieces sides |
David LaPlante wrote: I used a cloth strip for reinforcement Does anyone know where I can buy this cloth? I tried Stewmac and LMII and they don't seem to carry it. Or can I use some piece of common cotton cloth? Thanks! |
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| Author: | David LaPlante [ Thu Jul 15, 2010 12:19 pm ] |
| Post subject: | Re: Multi-pieces sides |
Alan, I used a cotton twill cloth tape found in any good fabric store and used as seam binding and reinforcement for making clothes. Martin used pretty much the same thing for a century as cross reinforcement for sides. Glue it with whatever you are comfortable using. |
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| Author: | Alain Moisan [ Thu Jul 15, 2010 12:48 pm ] |
| Post subject: | Re: Multi-pieces sides |
Thanks a lot David! |
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| Author: | Brock Poling [ Thu Jul 15, 2010 1:45 pm ] |
| Post subject: | Re: Multi-pieces sides |
Howard Klepper wrote: When I do a multipiece side, I laminate to an inner side, so separations can be fixed in the laminating stage. What kind of glue are you using to join the outer sides (not the lamination glue)? Are you bending by hand or in a bender? |
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