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Getting hot hide glue into tight places (half opened top plate)

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Jul 13, 2020 - 2:58:08 AM

Jimbeaux

Germany

348 posts since 5/24/2016

So I finally have the time and courage to attempt a saddle crack repair that I posted about maybe a year ago.

I strung up the fiddle despite the saddle crack to see if it was worth taking to a professional. It wasn't. I have been playing this fiddle off an on for a year, but I just don't like the sound it makes, or rather the sounds it can't make when compared to my two other fiddles which are much better. Although it looks nice, I got it super cheap and I know what I'm risking, so I'm just asking for some useful tips.

I have already opened the top plate from the bottom right corner block, around to the bottom-end block and up around to the bottom left corner block. I successfully glued the saddle crack back together. The end block should reinforce the crack enough that I don't need a patch. I'm going to remove some of the saddle from the side so it doesn't make another crack. Plus I need to shorten it as it really sticks up quite high. 

Now I just need to reglue the top, but I'm wondering how I'll get enough hide glue on the corner blocks, if I can't reach a brush in there? I'm think I'll heat up and dip the opening tool I used (cake spatula) into the glue and slop it in there like that and for the rest I can use a brush.

Does that sound reasonable? I have also used an injection method before, which might also work well.

I have experience with hide glue repairs on another fiddle and an old bowl back mandolin that had many open seams.

Edited by - Jimbeaux on 07/13/2020 03:00:12

Jul 13, 2020 - 5:28:03 AM
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274 posts since 1/5/2009

Sound's reasonable, I use a palate knife or a hypodermic needle.

Jul 13, 2020 - 9:39:16 AM
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1742 posts since 8/27/2008

Something that works real well that you might already have around is a feeler gauge. Pick your thickness.

Jul 13, 2020 - 9:41:26 AM

Jimbeaux

Germany

348 posts since 5/24/2016

I've already glued the blocks and it went well. I'll do the rest tomorrow

Jul 13, 2020 - 10:31:19 AM

1742 posts since 8/27/2008

quote:
Originally posted by Jimbeaux

I've already glued the blocks and it went well. I'll do the rest tomorrow


Why didn't you glue it all at once?

Jul 13, 2020 - 1:45:49 PM

Jimbeaux

Germany

348 posts since 5/24/2016

quote:
Originally posted by Brian Wood
quote:
Originally posted by Jimbeaux

I've already glued the blocks and it went well. I'll do the rest tomorrow


Why didn't you glue it all at once?


I read on the Pegbox that some do it in sections so I decided to do that, also because I don't have enough clamps to do it all at once 

Jul 13, 2020 - 2:12:22 PM

8405 posts since 3/19/2009

quote:
Originally posted by Jimbeaux
quote:
Originally posted by Brian Wood
quote:
Originally posted by Jimbeaux

I've already glued the blocks and it went well. I'll do the rest tomorrow


Why didn't you glue it all at once?


I read on the Pegbox that some do it in sections so I decided to do that, also because I don't have enough clamps to do it all at once 

ELASTIC bands?  Remember that hide glue pulls itself tight with drying.. Just a thought after two beers.

Edited by - TuneWeaver on 07/13/2020 14:13:59

Jul 13, 2020 - 2:36:53 PM
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1742 posts since 8/27/2008

quote:
Originally posted by TuneWeaver
quote:
Originally posted by Jimbeaux
quote:
Originally posted by Brian Wood
quote:
Originally posted by Jimbeaux

I've already glued the blocks and it went well. I'll do the rest tomorrow


Why didn't you glue it all at once?


I read on the Pegbox that some do it in sections so I decided to do that, also because I don't have enough clamps to do it all at once 

ELASTIC bands?  Remember that hide glue pulls itself tight with drying.. Just a thought after two beers.


Elastic bands, maybe if the joint fits perfectly flat. I think I'd do what Jim did to be safe. I glue new plates that way too. I clamp it all up dry (I have plenty of clamps), then remove about 1/4 of the clamps and put glue in with knife. Then clamp it back and go to the next quarter or so. My only problem doing that is worry about too much or too little glue. Too much can run inside. I deal with that by sizing the blocks first nad generally erring toward too little glue, if I can. Occasionally I'll find an open seam that needs regluing afterward, but that's not a problem.

My thought after 3 beers.

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