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PostPosted: Sat Jun 04, 2016 7:57 pm 
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Brazilian Rosewood
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Anyone got any sweet jigs?

My spidey senses tell me this is unnecessarily cumbersome...

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PostPosted: Sat Jun 04, 2016 10:50 pm 
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Walnut
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Did my first one a short while ago and just butted into the table saw fence. Seemed to work ok Image


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PostPosted: Sun Jun 05, 2016 3:40 am 
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Just whack a couple of staples in the spare real estate and cut the tops off.
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=46648&p=617073&hilit=+staples#p617073

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The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.



These users thanked the author Colin North for the post: ChuckH (Wed Jun 08, 2016 11:33 pm)
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PostPosted: Sun Jun 05, 2016 8:27 am 
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Cocobolo
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The only jig I have for scarf joints is for cutting them on the table saw. I typically just clamp them to a table, kinda like you're doing, except I have a gluing caul that covers the face of the headstock to allow for less leveling in the next step. It also looks like you pieces are still oversized, which is fine if you have a way you like to do it, but I might recommend getting those closer to your final dimension before the glue up.


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PostPosted: Sun Jun 05, 2016 10:33 am 
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Koa
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Keeping the parts from sliding out of position is paramount when assembling scarf joint necks -- if you do more than a couple, a dedicated fixture is a very good idea to help assure quality and speed up the process.

Image

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PostPosted: Sun Jun 05, 2016 10:45 am 
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Brazilian Rosewood
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Looks like everybody's contraptions use lots of clamps. So be it.

I like the drill press visas...


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PostPosted: Sun Jun 05, 2016 10:46 am 
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Koa
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PostPosted: Sun Jun 05, 2016 1:45 pm 
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Cocobolo
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I got lazy squaring up everything on the (Insert flat surface), so I squared up one time for a jig.
Image

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PostPosted: Sun Jun 05, 2016 2:16 pm 
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Here's a simple jig I borrowed from Kathy Matsushita's web site back about '06, used for cutting the scarf
http://www.patfosterguitars.com/ziriom/large-1.html

Where the red clamp is I added a block to it to keep things from creeping around, so I could use the same jig for cutting and clamping.

http://www.patfosterguitars.com/ziriom/large-5.html

Pat

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PostPosted: Sun Jun 05, 2016 2:45 pm 
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I don't use a jig, I use two small drill bits to drill and pin the pieces together in the correct position, Then I can disassemble it, add the glue, re-assemble using the pins and clamp. I don't seem to have a photo, but hopefully you get the idea.

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These users thanked the author Jim Watts for the post (total 2): ChuckH (Wed Jun 08, 2016 11:35 pm) • Colin North (Sun Jun 05, 2016 3:32 pm)
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PostPosted: Sun Jun 05, 2016 3:20 pm 
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Cocobolo
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+1 with jim watts, instead of drill bits, I use 2 simple toothpicks to prevent from sliding after I spread the glue, and it works like a charm.



These users thanked the author quentinjazz for the post (total 2): ChuckH (Wed Jun 08, 2016 11:35 pm) • Colin North (Sun Jun 05, 2016 3:32 pm)
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PostPosted: Sun Jun 05, 2016 4:24 pm 
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pgroneck wrote:
Did my first one a short while ago and just butted into the table saw fence. Seemed to work ok Image


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Is that Bubinga?

I imagine that has to be a real joy to carve.

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PostPosted: Sun Jun 05, 2016 5:55 pm 
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Cocobolo
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Straying a little bit here, but I have this jig for doing scarf joints.
Image



These users thanked the author Nils for the post: Robbie_McD (Tue Jun 07, 2016 7:26 am)
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PostPosted: Wed Jun 08, 2016 4:25 am 
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Brazilian Rosewood
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I also use toothpicks for basic alignment, supplemented by a few strips of masking tape to create a 'hinge'. Add a few cam clamps, and done. I cut it on a bandsaw and finish with a hand plane.


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PostPosted: Wed Jun 08, 2016 11:20 pm 
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Koa
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For those of you cutting on a table saw, can you do it with a 10" blade or do you have a larger table saw? I seriously doubt that even at full extension I could cut the scarf, especially when riding on top of a 3/4" sled. If it is a 10" blade, what size neck blank are you assembling?


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PostPosted: Thu Jun 09, 2016 9:02 am 
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Cocobolo
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rlrhett wrote:
For those of you cutting on a table saw, can you do it with a 10" blade or do you have a larger table saw? I seriously doubt that even at full extension I could cut the scarf, especially when riding on top of a 3/4" sled. If it is a 10" blade, what size neck blank are you assembling?

I cut mine with a 10" blade, 3" neck blank.


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PostPosted: Thu Jun 09, 2016 9:17 am 
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Cocobolo
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Yes, I use a 10 inch blade as well. The key is the blank does not ride on top of the sled if you want to use a 10 inch blade, See Ben-Had's picture,
Mike


Ben-Had wrote:
rlrhett wrote:
For those of you cutting on a table saw, can you do it with a 10" blade or do you have a larger table saw? I seriously doubt that even at full extension I could cut the scarf, especially when riding on top of a 3/4" sled. If it is a 10" blade, what size neck blank are you assembling?

I cut mine with a 10" blade, 3" neck blank.


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PostPosted: Thu Jun 09, 2016 9:41 am 
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Brazilian Rosewood
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Ben-Had wrote:
rlrhett wrote:
For those of you cutting on a table saw, can you do it with a 10" blade or do you have a larger table saw? I seriously doubt that even at full extension I could cut the scarf, especially when riding on top of a 3/4" sled. If it is a 10" blade, what size neck blank are you assembling?

I cut mine with a 10" blade, 3" neck blank.


I have used a taper jig and clamped the blank to it and run it through the tablesaw. That works OK. Tim, your pic looks like the jig is static and you raise the blade up through the blank slowly. Is that the case? That seems like it might address a bit of the blade wobble I experienced with the sliding taper jig.

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PostPosted: Thu Jun 09, 2016 5:46 pm 
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Cocobolo
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So since my table saw is cheap, the table is thin, which allows a little more height than most nicer models, or so I've gathered. Usually my neck pieces are about 2.75" wide, which is fine. Sometimes I have to finish it off by hand if its too tall though.


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PostPosted: Thu Jun 09, 2016 11:09 pm 
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Cocobolo
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[/quote]Tim, your pic looks like the jig is static and you raise the blade up through the blank slowly. Is that the case? That seems like it might address a bit of the blade wobble I experienced with the sliding taper jig.[/quote]
No, it has a miter bar and is used like a sled. My saw is set up pretty well and the cut is pretty exact, not much left to do but glue it up.

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These users thanked the author Ben-Had for the post: bcombs510 (Fri Jun 10, 2016 5:45 am)
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PostPosted: Sat Jun 11, 2016 5:05 pm 
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Brazilian Rosewood
Brazilian Rosewood

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First name: Ed
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Well, this is a lot simpler...

Image
While dry fit, drilled two 7/64 pilot holes that conveniently fit BBQ skewers...

Image
Add skewer...

Image
Trim flush and Mark which is which...

Image
Clamparooney! From 8 slippy slidey clamps to two cooperative little helpers. Level up!



These users thanked the author meddlingfool for the post: Pmaj7 (Sat Jun 11, 2016 10:44 pm)
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PostPosted: Sat Jun 11, 2016 5:07 pm 
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Brazilian Rosewood
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Thanks for the idea, Jim!


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