So what I want to do here is to explain how I determine where to cut when I make a scarf neck. It was hard for me to calculate just where to cut the neck stock so that i had enough to make the headstock (pegboard if you want) but not too much. I tried math. I tried templates. I tried Zen. Then the answer was simple! You will see below.
First off, I make my scarfed necks where the scarf (headstock) is over the neck and both the neck and head are under the fretboard/fingerboard. Some of you don't put the headstock over the neck so this lesson won't help much. For that you might have to do some other calculations based on where the neck 'bends' down and how long a headstock you want. That's for someone else to decide. Me, I am not that ambitious.
Ok, so for starters, I use some sort of neck stock. What that would be is unimportant as is the thickness or width. That's totally up to you. Also the angle that you want to use. Again, not important here. What i have been using as a point of reference, is a 36 piece of stock. Lets say a standard 1x2 piece of stock from Lowes or Home Depot (US). I want to make my headstock say, 5 1/2 long. That is, I have 5 1/2 from where the neck bends on the top to the end of the head. I lay the wood down flat (on its 2 side) and measure from one end 5 3/4 (1/4 extra for cutting or bad measurement). I will make a mark across the wood . Then I will lay the wood on its 1 side. I have a jig that I made that will measure the exact angle I want (see pic below). I lay that on the side at the previous line and make a mark of that angle. That's my cut.
What Is A Scarf Joint On Guitars And How To Cut And Glue It?
Simple eh? Yeps. Can't be any simpler. Once cut, I flip the head over, glue it down, measure about 1/2 away from the topside bend an that is where the fretboard/fingerboard will end and the nut begins. From there, I can measure for my scale and then where the box will be based on where I want the bridge. Even simpler.
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Scarf Joint Jig
Well I'll eventually do a load of new vid clips Doug, gotta figure out this phone a bit re. filming so I don't look left-handed :) -Glenn
Scroll uastyle>ud/** Scrollup **/ud.scrollup ud.scrollup:hover ud uascript type=text/javascript>ud x$(document).ready(function() else ud });ud x$('.scrollup').click(function(), 600);ud return false;ud });ud });ud ua!-- End Scroll Up --What if you could have a simple scarf joint miter box to assemble, then flawlessly cut scarf joints to your heart's content?
Hearing the frustrations voiced by builders who don't have the tools and resources to effectively cut accurate scarf joints, Ben Gitty Baker got to work.
Cigar Box Guitar Resonator Guitar Gibson Les Paul Guitar Amplifier Head, Classical Corner, Angle, Text Png
After many much testing, Gitty finally got the solution to every cigar box guitar builder's problem: a simple miter box to cut perfect scarf joints by hand.
To make certain the box is a breeze to assemble, Ben made a video walking through the process, step-by-step, then demonstrated how easy it really is to cut a scarf joint using the miter box.
After the video below, you'll see a text and image cut-up of the video for another look at how easy the box is to assemble and use.
My First Scarf Joint
This is the one with the series of rectangular holes, and on the bottom-side you will see holes with countersinking circles around them.
Next, take your middle piece of the base, line up the hanging holes [seen by left hand in picture], and place it over the base.
Next, take hold of the two side panel pieces that, unlike the other side panels, have no tabs on the top or bottom.
How To Cut Perfect Cigar Box Guitar Scarf Joints By Hand
At this point, verify that you can see through the slots, that everything is correctly mounted, and that the countersinking holes are facing outward on your side panels.
Now insert the bottom row of screws making sure to get the screw-head at least flush, or slightly countersunk beneath the plywood surface.
If the screw-heads prevent the side panels from inserting into the base, pull the side panel back out and get the screws in there a little bit further.
Cigar Box Ukulele Project 1, Part 2
Now turn the miter box over exposing the four holes with the countersinking circles seen on the bottom of the base plate.
Be careful to get these screw-heads flush or slightly countersunk beneath the surface of the wood so the miter box will sit flat when used.
If the fit is a little too snug, use some sandpaper to thin down the end-pegs so that the depth stop fits snug, but not too tight to get back out.
Cigar Box Guitar
To use your scarf joint miter box you will need a thin, flush-cut saw with a narrow kerf; the narrower the better.
It is also recommended that you clamp the miter box to a benchtop or mount it to a larger board that can be clamped down for stability while sawing.
Using the depth stop will yield a headstock on your neck that is roughly 5.25 inches long, which is great for cigar box guitars.
Cle Cigar Box Guitar Build
If you want a longer headstock or some sort of different arrangement, you can remove the depth stop and make the cut wherever you wish.
If your neck is 1.5 inches wide, you should have a nice, snug fit with no side-to-side movement in the miter box.
Do your best to move your arm exactly horizontal, not pulling up on the saw or pushing down which will cause the teeth to cut into walls of the miter box saw slot.
Scarf Joint Miter Box Kit
It should take about 30 seconds to a minute of gentle, steady sawing to cut through most woods, although harder woods will, of course, take a little bit longer.I started by using the above diagram as my guide. I can do this I thought. Just decide which method I want, measure, cut and glue (very precisely) and I'm done. Except, as I started to measure and make some calculations, I discovered there were questions the diagram did not answer. After building a few CBGs, I do know how long a board I need if i'm not using a scarf joint. But the diagrams above did not answer some basic questions - is the board necessarily longer (or shorter?) and by how much? And would Type 1 be longer or shorter than Type 2? Does the headstock have to be longer for Type 2? and if not, again, what measurements do I use? Should I leave it to trial and error? No, wood is a precious thing to waste. So I got me a pen and a paper (and I made up my own little sign... sorry, I couldn't resist) and did some math.
First, make your calculations as if you were building without a scarf joint to determine the board length (this takes into account your box size, the length of your headstock, etc.). Then, use the following steps to help you measure and cut so the headstock will be exactly as long as what you want, for either Type 1 or Type 2.
Let's say we want the headstock to be 130 mm (about 5 inches). The following templates represent a 3/4 inch thick neck, about 20 mm.
Neck Scarf Joint Question
Type 1 - Measure as shown from the tip of the board. Draw the 15 degree angle as shown, Cut and position the headstock as shown. This will give you the 5 in. / 130 mm you want for the head stock. The fingerboard in this method will cover the glue joint.
Notice the joint is visible on the upper surface of the neck - may want to use this type if you are going to add a fingerboard to cover the glue joint.
Type 2 is a little different but just as simple. Measure as before from the tip of the board but on the opposite surface. Draw the 15 degree angle as shown. Cut and position the
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