SuperFlat

To understand how to make guitars and guitar-type instruments, you simply need to grasp a few basic facts. Considering things simply at first, how to make a guitar can all be logically understood by dissecting the instrument into three major parts; you have the body, which can be hollow, or solid regarding an electric guitar; there is a neck, which both props up strings taught and also provides a place for fingers to press the strings against (at different places, effectively shortening the duration of the vibrations thereof, to varying degrees), for creating different notes; and then there are the strings themselves. Consider a closer look at the first couple of... - Jadakiss Style Instrumental

Before we get into the math involved in fret placement, if you are after to know how to make guitar necks including those we see on guitars in instrument shops, particularly with those electric types who use steel strings, you will invariably need to route a channel (usually within the fret board, before attaching it) centrally down the length of it for a truss rod to be trapped in place. A truss rod is used to correct any natural bowing which could occur in the wood from the neck, or which could also be due to the stresses of stretching steel strings upon it, by adjusting the stress thereof.

Understanding how to make a throat for acoustic types and the ones using nylon or another material for strings, we find that this may not be necessary. Creating a slight arc to the fret board across the cross section of the neck might be desired, based on the player's specific needs - with this particular aspect of how to make guitar necks, you will find that these can be of different radii, like with the Gibson type guitar fret boards, which is often of a 12" radius arc.

Learning to make guitar fret placements along the length of the neck become known needs a wee bit of math - a little trick known as the "18 rule". The 18 rule is really a means of finding precisely where to place each fret around the fret board, and it is a must-have bit of information, in the event you really want to know how to make a guitar. It goes this way; you measure the distance with the "effective length" of the string... in other words, the part of the string that lies freely involving the "nut" at the head stock end of the neck (also called the "zero fret"), and the "bridge" at the body end with the strings.

You then take this measurement and divide by 18 - or a lot more precisely, 17.8167942... take the answer to that math problem, and you have the precise distance in the nut to place the initial fret. Now measure from that increased first fret placement and the bridge, divide that by 17.8167942, and then you have precisely best places to put the next fret, and so on. The number 17.8167942 is pretty close to 18, thus the rule.

There are other factors to learn how to make guitar type instruments, but none that are quite as mathematically involved as finding fret placements a great deal. Now that you know the 18 rule, you've got the hardest mathematical part in your memory. So as you can see, finding out how to make a guitar and putting one together needn't be very difficult. The rest is all a matter of how well you use your hands and what tools you've at your disposal. With guitar strings, fret wire, machine heads and wood clamps and so forth, readily available and easily enough bought, means that easy enough to put together when you are aware how. - Jadakiss Style Instrumental