Process for end graft with mitre binding

[johnc.marple]

Hi.

Does anyone know of a documented process for and end graft with a mitred binding, see attached for an example of what I am looking for  ?

Thanks 

J

[Dick Fulco]

Hi,

Thanks John.

I would really like to know how to make this too!

Met vriendelijke groet, Dick

Op zo 9 jun 2024 om 20:10 schreef johnc.marple <johnc....@gmail.com>

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[barry...@gmail.com]

I seem recall a tips du jour on mitred bindings. You can check there.

In His Name - 

Barry

On Jun 9, 2024, at 2:10 PM, johnc.marple <johnc....@gmail.com> wrote:



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<Screenshot 2024-06-09 at 19.02.09.png>

[Robert Gibfried]

Robbie has a Tips de jure video on this.

Bob

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On Jun 9, 2024, at 1:43 PM, barry...@gmail.com wrote:

I seem recall a tips du jour on mitred bindings. You can check there.

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[Robbie O'Brien]

Well, this video goes back a number of years.

It is Luthier Tips du Jour video 17 and I discuss mitered purfling at about minute 7:00

https://lutherieacademy.com/videos

Robbie

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From: 'Robert Gibfried' via Robert O'Brien Guitar Building Forum <obrien...@googlegroups.com>
Sent: Sunday, June 9, 2024 17:06
To: obrien...@googlegroups.com <obrien...@googlegroups.com>
Subject: Re: Process for end graft with mitre binding

 

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[John Charnock]

That looks like a fingerboard binding video.

 

The query is related to the end graft process

 

Regards

 

John

 

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[Eric Thompson]

Look up tip du jour #86, hope that video answers your question.  For end graft materials, I use the same material for the binding or my favorite is a wedge shape and use any material that looks interesting. 

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[Mono El Pastor]

This is the method I use.

https://youtu.be/6vRkRUvOQHM?si=QG99E0PAH4s7i9EX

[John Charnock]

Excellent, just what I was looking for

 

Thanks

 

John

 

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[Dick Fulco]

Hi all,

I was thinking about a mitred binding/purfling as showed on the video.

I tried to bend the bwb purfling the “other direction as normally” so turned over a quarter angle to get the bwb on the outside when using this on the Side of the guitar instead of the top.

But I can’t get the purfling to bend this way, it want’s to bend along the Thin Side naturally.  So it get’s warped.

Is there a method to do this, or is there a purfling that is meant to bend along the other side?

Met vriendelijke groet, Dick

Op wo 12 jun 2024 om 11:08 schreef John Charnock <jo...@marple.co.uk>

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[C Green]

I did this on my last guitar.  I bent the purfling when I bent the bindings in the side bender.  I taped all four together and had no issue.  

Sent from my iPad

On Jun 30, 2024, at 6:59 AM, Dick Fulco <dick...@gmail.com> wrote:



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[Dick Fulco]

Thanks, but I guess you have a lot of scraping to do since the purfling is thicker then te binding?

In my case the bwb purfling tilted down, so it got really warped. Iow it want’s to lay flat instead of remaining “standing right up”

But you had no problem with that you say. Did you use normal binding tape to put it together in the bender?

Met vriendelijke groet, Dick

Op zo 30 jun 2024 om 15:04 schreef 'C Green' via Robert O'Brien Guitar Building Forum <obrien...@googlegroups.com>

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[Paul McEvoy]

Can you glue the purfling to the binding?

I did it bashin style, glued up a nice piece of wood to some black and white fiber.  I used gorilla glue which is perfect for this (heat resistant).  Titebond III is the other choice but it has a lot of moisture so can warp the layers.  

It bends well that way.  I have had some minor delaminations when heat bending...I think that was because of some glue starvation.  

My miters suck but that's another issue.  

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[Dick Fulco]

Thanks again! Think I know what I was doing wrong. I tried to bend them one by one. Thanks to your advice C Green, I now taped 4 of them together, so it becomes a flatter combined “package”

Worked out fine, see picture. Took it out of the bender and alu foil, just holding it in it’s form now.

Paul, I guess glueing it to the binding would be a good solution too, thanks!

I just read your answer and was already done bending :)

Hope your mitres turn out better in the future, I will have to wait and see how I will do. I’ll post some pictures.

Met vriendelijke groet, Dick

Op zo 30 jun 2024 om 15:04 schreef 'C Green' via Robert O'Brien Guitar Building Forum <obrien...@googlegroups.com>

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[C Green]

I think I just used blue painters tape.  The excess came off quickly with a scraper.

Chris Green

Sent from my iPad

On Jun 30, 2024, at 10:17 AM, Dick Fulco <dick...@gmail.com> wrote:



Thanks, but I guess you have a lot of scraping to do since the purfling is thicker then te binding?

In my case the bwb purfling tilted down, so it got really warped. Iow it want’s to lay flat instead of remaining “standing right up”

But you had no problem with that you say. Did you use normal binding tape to put it together in the bender?

Met vriendelijke groet, Dick

Op zo 30 jun 2024 om 15:04 schreef 'C Green' via Robert O'Brien Guitar Building Forum <obrien...@googlegroups.com>

I did this on my last guitar.  I bent the purfling when I bent the bindings in the side bender.  I taped all four together and had no issue.  

<image0.jpeg>

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[Dick Fulco]

Thanks Chris, you really helped me out.👍

Met vriendelijke groet, Dick

Op zo 30 jun 2024 om 19:09 schreef 'C Green' via Robert O'Brien Guitar Building Forum <obrien...@googlegroups.com>

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[C Green]

Glad to help Dick. 

Have a good day

Chris Green. 

Sent from my iPhone

On Jun 30, 2024, at 1:18 PM, Dick Fulco <dick...@gmail.com> wrote:



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[Sean Gilbert]

Eric Schaefer has a video on this as well.

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[Chuck]

I typically glue my purfling in separate from my binding. I use strips of HDPE plastic in the same size as my binding to hold the purfling in place while gluing. You probably already know this, but if the geometry of your glued purfling is off and some sections are not parallel with the sides, then it is tough to get your binding to sit properly. Another thing I had to learn the hard way. If your purfling channel varies even a little bit in the depth of the cut, it is the binding that will suffer. Your purfling can never change in thickness, so if your channel is a couple thousandths less in one spot, then the binding will also need to be a couple thousandths thinner when you scrape everything flat, and will appear inconsistent when viewed from above. You probably know this stuff, but sharing my hard lessons learned.

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[Dick Fulco]

Hi Chuck,

Thanks, that are surely things to keep in mind!

Met vriendelijke groet, Dick

Op ma 1 jul 2024 om 19:11 schreef Chuck <dba.h...@gmail.com>

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[Dick Fulco]

Hi,

I promised to send a picture, so here it is.

Not perfect, but for a first time I’m happy enough.

Have to finish scraping yet.

Met vriendelijke groet, Dick

Op ma 1 jul 2024 om 20:35 schreef Dick Fulco <dick...@gmail.com>

[Barry Oren]

Nice work Dick!

In His Name -

Barry 

On Jul 3, 2024, at 11:51 AM, Dick Fulco <dick...@gmail.com> wrote:

Hi,

I promised to send a picture, so here it is.

Not perfect, but for a first time I’m happy enough.

Have to finish scraping yet.

<image_67181313.JPG>

Met vriendelijke groet, Dick

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[Dick Fulco]

Thanks Barry!  :)

Met vriendelijke groet, Dick

Op wo 3 jul 2024 om 18:15 schreef Barry Oren <barry...@gmail.com>

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[C Green]

Looks good Dick.

Chris Green

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On Jul 3, 2024, at 12:57 PM, Dick Fulco <dick...@gmail.com> wrote:



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[Joe Shuter]

Dick, it doesn't look like your mitred binding was your first time. Looks great! Scooter

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[Dick Fulco]

Thanks Chris!

Met vriendelijke groet, Dick

Op wo 3 jul 2024 om 19:50 schreef 'C Green' via Robert O'Brien Guitar Building Forum <obrien...@googlegroups.com>

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[Dick Fulco]

Thank you very much Scooter!

Met vriendelijke groet, Dick

Op wo 3 jul 2024 om 20:17 schreef Joe Shuter <jwsh...@gmail.com>

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[Chuck]

Looks good!

[Dick Fulco]

Thanks Chuck!

Met vriendelijke groet, Dick

Op vr 5 jul 2024 om 01:01 schreef Chuck <dba.h...@gmail.com>

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[Ramon Tristani]

Check out this video from Pablo Requena. This is how I do it.

https://youtu.be/6vRkRUvOQHM?si=2BZoWzWeajQ7zijn

Thank you,
Ramon E. Tristani

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