scarf joint?

[john mackay]

what measurement do you guy's use.

I dont have any set measurement ,I just cut what I think is ok ,say 4" to 5".cut corner to corner.

[Moritz Voegeli]

Setup for doing exact low angle scarf joints with a handsaw: check

 

https://www.dictum.com/en/tools/woodworking-metalworking/saws/scrol...

 

http://z-saw.co.jp/en/Sawguide.html

 

a japanese carpenters tool to cut dimensional lumber at various angles, to get the idea.

 

For horizontal cuts square guides will allow an even better guidance of the saw. When you begin to saw, for a kerfed saw their teeth must run outside of the guides, once they dissapeared into the wood, you lower the guides for even better accuracy.

 

DIY!

[Stoney King]

http://www.cigarboxnation.com/profiles/blogs/cutting-a-scarf-joint-...

[john mackay]

not working

[Rick Alexander]

In that video, Glenn Watt shows how he does it. He measures 3 inches twice, then draws a line corner to corner. It's how I do mine. Try to find the video on youtube if you can.

[Taffy Evans]

Hi, just for the record. I have a couple of Martin guitars in the shop for repair that have 15deg peghead angle.

Taff

[Hal Robertson]

Well, Wikipedia and I have both been know to be wrong... from time to time...:-)

Out of curiousity, just measured a knockoff Hummingbird (12ish) and an Ovation Al Dimeola Signature (12-13ish). Granted, my measuring device was eyballing a rafter square, but it was in the ballpark.

Anyone interested in seeing how to cut a 17-18 degree scarf joint on a Harbor Freight $12 miter box?

[Ron "Oily" Sprague]

Yeah! We want a scarf vid, Hal!

[Hal Robertson]

Sorry, no video, but I do have pix.

Here's how to cut a farily steep (17 degrees or so) scarf joint using nothing more than a simple Harbor Freight $12 miter saw.

Place the stock in the miter jig with the corner directly in the 45 degree saw slot furtest away from you (see pic). Pull the other end toward you till it hits the jig wall. Hold firmly and saw away.

Assuming your stock is more than long enough, flip it around and repeat on the other end.

Flush saw one end to your chosen headstock length (this one is around 5 1/2") and, voila! One scarf joint.

[Hal Robertson]

[darryl kernaghan]

A very useful tool for this is a simple sliding bevel gauge or bevel square, just mark your angle on the edge of the bench top with a length of wood placed at the angle you chose to the joint to be, then set your bevel to that angle,and that's your  back cut angle. you can get cheap bevel squares for a couple of dollars at the big box hardwares, even the ones with a plastic body are up to this task 

[Hal Robertson]

Thos is how I usually cut them...

[Wichita Sam]

rule of thumb.  The higher degree of angle in the scarf joint, the more down pressure on the nut.  The lower degree of angle in the scarf joint, the stronger the joint.

That's why more Gibsons break at the headstock than Martins.  Anything between 9* and 15* is workable.  I prefer 10-11*.