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SStallings
PostPosted: Mon Nov 23, 2009 4:16 pm 
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No matter what, I can't install kerfed linings without them breaking at the upper bout, even with a dread. These are the run of the mill LMII/Stew Mac reversed linings. What's the trick -- putting them in the bender before installation? Thanks.
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the Padma
PostPosted: Mon Nov 23, 2009 4:25 pm 
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Thats one way.

Anther is to thin them on the unkurfed side.


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Michael Dale Payne
PostPosted: Mon Nov 23, 2009 4:32 pm 
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A light soaking in warm water will do the trick. Some builders even use their Fox bening machine to pre shape reverse kerf linings.
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Pat Foster
PostPosted: Mon Nov 23, 2009 4:47 pm 
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I wipe the "back" side - not the glued side - lightly with Supersoft II, let dry until just damp.

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Dave Stewart
PostPosted: Mon Nov 23, 2009 5:11 pm 
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As well as the water wipe, I'll run an exacto knife down each kerf going into tight areas, (I install my homemade rev-kerf linings in segments, so I've already separated those that feel stif from the limp noodles).

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Zach Ehley
PostPosted: Mon Nov 23, 2009 5:21 pm 
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Bend em. I only seem to have a problem when I mess up and bend them the wrong way, then have to re-bend the opposite direction. I just did this this weekend. Two started to crack from handling, so I ended up taping until installed. They get a little brittle after that and crack easier. The other think I don't like is the the reverse ones I use show the facets after bending. I've thought about making my own and leave the non remaining wood in the kerf section a bit thicker that the ones I've bought. Should work better when bending and allow for some sanding after to smooth things out. Current ones don't have much there to sand off without going through.

Spanish cedar by the way.
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fric
PostPosted: Mon Nov 23, 2009 5:25 pm 
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I wipe and leave clamped in the mold until dry
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Haans
PostPosted: Mon Nov 23, 2009 5:33 pm 
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Good thing you are not making F5 mandolins! Just wet the glue side...
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Jeff Highland
PostPosted: Mon Nov 23, 2009 5:46 pm 
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With reverse kerfing, I run hot water from the tap (faucet) over it for 30 seconds, wipe a towel over it, then clamp it to the outside of the rim with the glue face(kerfs) outwards.
This allows the glue face to dry and avoids wetting the inside face of the rim.
Leave it to dry for a couple of hours then use.
This is the only way I avoid breakage.
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Terence Kennedy
PostPosted: Mon Nov 23, 2009 5:53 pm 
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I soak in hot water in the sink and then form them over the hot pipe and stick them in.
Terry

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mateo4x4
PostPosted: Mon Nov 23, 2009 7:05 pm 
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I am not even remotely savvy with reverse linings, but would it work to re-enforce the non glue side with medium strength painters tape? Even if they do crack or break, they won't go anywhere and I've never had problems with the medium tack blue tape releasing from everything but newspaper (unless I do something silly...like leave it on something delicate, in the sun, for days).

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Mark Groza
PostPosted: Mon Nov 23, 2009 8:26 pm 
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I just spray and hot pipe them to fit, them clamp them to the sides until dry and glue.
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jmpbuffalo
PostPosted: Mon Nov 23, 2009 8:37 pm 
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mateo4x4 wrote:
I am not even remotely savvy with reverse linings, but would it work to re-enforce the non glue side with medium strength painters tape? Even if they do crack or break, they won't go anywhere and I've never had problems with the medium tack blue tape releasing from everything but newspaper (unless I do something silly...like leave it on something delicate, in the sun, for days).

-Matthew


That's what I did on my build, and it worked for me.

Jope
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stan thomison
PostPosted: Mon Nov 23, 2009 8:45 pm 
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I just push the in the back of the kerf of the linging with thumb nail and slightly bend as I do so. Never break them even in tight turns. At last shop we ran the side support braces from top to bottom of rim and installed the lining between braces. Did the same thing with thumb, Should't have to wet soak or whatever.
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matthewrust
PostPosted: Mon Nov 23, 2009 11:15 pm 
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First of all, is this Steve Stallings from the UMGF?

I find that LMI sells kerfing with a slightly deeper kerfs which makes it much more flexible than the stuff that StewMac sells. If I hadn't found LMI's stuff, I would probably just hit the back side of the kerfing with some 150 grit to make it more flexible. I am sure bending would work too, but I think a few swipes from a sanding block in the tight areas is a little easier than firing up the propane torch...

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peterm
PostPosted: Tue Nov 24, 2009 12:50 am 
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My friend Kevin Ryan came up ith the best solution for this... the A4 Kerfing.
I think several people here use it already.

Image

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Peter M.
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GregG
PostPosted: Tue Nov 24, 2009 6:06 am 
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Quote:
My friend Kevin Ryan came up ith the best solution for this... the A4 Kerfing.
I think several people here use it already


Hi Peter,

Is this available from Kevin? Please PM me with details.

Thanks,

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SStallings
PostPosted: Tue Nov 24, 2009 7:19 am 
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Not Steve Stallings from the umgf -- I'm not that smart.

Amazing how simple the solution is to things that seem so hard.
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Brock Poling
PostPosted: Tue Nov 24, 2009 8:05 am 
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Todd Stock wrote:
If the idea is to have the clean look of reverse kerf linings, then the Ryan lining will not meet expectations. Same deal with getting the additional rim stiffness - the Ryan linings will not provide any additional stiffness - strictly hold plate to rim. They have their own look, and it's def not a reverse kerf thing.

If neither the clean look nor additional rim stiffness matters to you, why not just use conventional kerfed lining? Easy to make, easy to install, and does the job.

If you want to use the linings to decorate the inside of the box (e.g., the laser burn on Ryan's lining), just use wood bleach followed by NGR dye ...great for teens exploring their range of moods...think black for Goth, blue for breakups, red for angry young man, etc...


I use the Ryan linings on my cutaway guitars (my normal capped linings don't behave well in venetian cutaways) and I think they look very sharp. You are right though they don't add the stiffness of the others but they install flawlessly.

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Haans
PostPosted: Tue Nov 24, 2009 11:53 am 
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Basswood is your friend...
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