srijeda, 5. veljače 2014.

Instalation of truss rod

Truss rod is used today in nearly all models of guitar regardless of whether they are acoustic , electric and bass guitars . The main purpose of rods in the neck as some think it is not held to the neck in the same position and to prevent warping neck.
Purpose rods in the neck , in fact , that is already distorted , bent necks back in the position in which they should be . Wood is a living material , regardless of age , degree of dryness , handling , and weather conditions , and will always " work " . Truss rod is constructed so that its location in the middle of the neck by use of force , which affects the environment , ie neck , and will be straining your neck to bring the nut straight condition .
Some truss rod rods are designed so that they can act in two directions , strain or releasing neck . However most of the truss rod rods only work if the neck twisted in the convex side, and straining can come back .
Truss rod can be adjusted in two ways, depending on the placement of the neck , if the bar is located below the neck ( skunk stripe system) then it is usually the parent is under the control of the NUT 's on the headstock , and if it is below the fretboard , then the regulation in neck pocket of guitar..

Potentiometers & switches

All signals coming from the magnets are sent to the center for treatment and control signals. The signal from the magnet selected with the corresponding positions intensifies, adjusts the color tone and via the Volume potentiometer sends the amplifier. Signals from the magnets can switch to select just one, two or all three together breath guitar has such a schedule magnet. 
  There are also options mRNA (sharing the signal from the humbucker compounds in series or parallel). This provides a certain tone to the desired choice
Fender style switch
The signal that comes from Volume potentiometer, it increases logarithmically as suitable for emergency signal amplification. Regulation tones are ofabire linear potentiometer. 
Potentiometer for color tone, parallel placed ceramic capacitor, typically 0.22 to 0.47 nF.
Tone control set
Potentiometers regulating exit humbucker are usually of 500K, while in ordinary pickups 250 K.
Double potentiometer
Switch to select the work of the magnet has a three position in the case of two magnets , or 5 position if the guitar has three magnets .
Ibanez & PRS type switch
Such switches are offered a choice of all possible combinations of signals around the dial .
Shematics diagram 2 hums
Some guitars have a whole set of amplification and signal selection on one panel ( Fender Stratocaster , Fender Telecaster )
while some have specifically placed separately on the body ( Gibson , Ibanez )

The signal from the switches and potentiometers sends the output of the guitar where he was placed OUT jack . The terminal is equipped with contacts ( usually 2 or 3 ) , which are universal to fit each cable for each guitar . It is a dimension of 6.3 mm and has the same two or three contacts , minus ( - ) pole or mass ( GND ) and hot ( HOT ) contact .
Simple out jack
Out jack with battery plug
Output jack plate
Output jack connector
A third possible contact is the contact for the battery in the guitar with electronics for amplification ( active pickups ) . Turning off the cable from the guitar, the contact closes battery power , which is located in the electronics of the guitar.
Battery for active coils

utorak, 4. veljače 2014.

Making a guitar neck

 After selecting the wood for the neck of the guitar (maple, walnut, mahogany) based on pre-cut template, or dimensions with the design, convey a sketch on wood. As I described earlier wood should be dry, flat, without bumps and cracks. In this post I will describe the gates of the Fender Stratocaster Style and Style for Gibson.
Fender guitars have a neck with a so called flat headstock
While Gibson style guitars have neck with angled (angle) headstock

Due to such a construction door should take into account the length and thickness of the wood pieces for the neck. So for a flat headstock dimension pieces for the neck should be 650 x 120 x 30 mm ..

Such a cut piece will be called. "maple neck."
Telecaster style neck (maple)
These dimensions are only valid if the truss rod rod to be inserted under the door. If you will use the truss rod rod below the fingerboard, then it will be a piece of cutting dimensions 650 x 120 x 22 mm. This is because the fingerboard will be especially glued to the neck, and its thickness will be 4-6 mm.
Telecaster style neck (rosewood)
On such a cut piece of wood is taken up with a sketch or draft template on a piece that will be cut . Best crop band saw.

But since it is such a machine builders unavailable amateurs , can be cut with the jigsaw . Jigsaw has to be high quality , or at least good quality blades ,
Professional jigsaw
 Otherwise, it happens that saw crops , and will at the lower end piece that is cut out to be the correct dimensions . Crop should be at least 3-5 mm outside dimension for later fine processing .
When the neck is cut into rough form , the following operation is cutting channels for the truss rod . The channel is cut from the bottom, if we have a common "one way " truss rod " , or from above if the "two
way "  bar or " martin style " .

One way trus tod
After inserting the rod in the neck , and it must be done so that the rod does not " Luft " , that is, can not move in either direction , otherwise , its activity will not be effective .
Rod should be closed " Kyle " or closely cut a piece of hardwood that will be glued firmly pair well with your neck .
Vart cut into rough , so " beyond measure ." Below are the top of the crop " thinning " headstock approximately 16 mm ( roughly ) .

For processed so that the neck thinned the headstock , drill the holes for the tuners ( tuners ) . Fender guitars that I describe here , the holes for the tuners are drilled at a distance of 1 " (25.4 mm ) , with a diameter of 10 mm . Headstock final thickness is 14-15 mm ..
The front side of the neck ( fingerboard ) should ideally leveled so he could slice up " radius " . Radius of neck is actually curved portion grips on a particular measure . If we say that the radius of the neck 12 " it means that it is part of the circle of diameter 12 " (25.4 cm), and the neck is just a cut segment . Thus , if the radius is larger necks , the curvature of the door will be lower and vice versa .
Compound radius of neck
The figure is indeed so . " compond radius " , which means that the larger the radius of the door as the distance between the lower threshold . Most often operate neck with fixed radius
After inserting the rods derivative claims , and the thinning of the headstock , exceeding the finish of neck on the lower side , Despite mechanization and various machines , it is almost impossible without a CNC machine to make the neck to the end . This is where the " hand made" , ie handiwork . Neck by labels that are made ​​in the neck , gradually tapering , according to the form that was given before .
This is the most critical situation because if too much " scratch " in the tree , there is no return or repair . because this is the most critical part . Usually this operation is performed using a file , and it very cautiously and gradually .
After a rough rasp works , more finalizing or glass , or sandpaper . This is where the experience and precision .

This post refers to a straight headstock of the guitar such as Fender , and some others, while the Gibson guitar neck is made significantly different and in a different way .

Headstock that door is tilted about 13 degrees to the rest of the neck , so the material for the construction of different compared to the above.

Ideal would be that the neck is made from one piece of wood , but this is often not practical or possible . Then comes into consideration only gluing the headstock .

In the illustration above , it is evident a way to come up with angle headstock " headstock angle neck "

Everything else in the construction of the same is more or less as described above .
The neck finish gradually with all the finer sandpaper until the final in 1000 ( number of grade sandpaper )
Fingerboard regardless of whether it is bonded or " one piece maple " , after sanding block radius and dimensioned according to the final measures , is ready for threading slots " channels " for thresholds .
This deal is also very critical , because it is 1/10 millimeters . If it is a standard scale used by Fender , then the scale of the neck first be accurately dimensioned .
There's a site where there ONLINE Fret Calculator
Before cutting out slots in the neck to put INLAY DOTS ( the point on the field ) . Ideally, the color or contrasting points of the inverse of the fingerboard

Thus, the length of 25.5 inches ( inches ) , respectively 647 , 78 mm will be distributed by the NUT to the Bridge. Since the notch for the NUT was previously defined and labeled , starting slots for measurement thresholds .
This will be the first threshold away from the NUT 's EXACTLY 36.48 mm and the last 21 threshold will be the NUT 's EXACTLY 456.75 mm .
Especially important was the distance 12 threshold that must be exactly half of the scale , then the NUT to 12 threshold distance is 323.9 mm .

It is understood that the distances between the thresholds correct , otherwise it will not get the correct intonation at higher frequencies .
Threading slots ( slots ) for thresholds is a delicate operation that requires experience , knowledge , tools and patience . It is ideal for such cutting that there is a fine  length of 20 cm and thickness of sheet 0.20 to 0.25 mm . Saw must have very small teeth ( 15-20 teeth per inch) . It is also advisable to drink a stop to the depth of cut to the grooves were equally profound .
Thresholds cuts the length of the neck width and 3 mm. The thresholds are slightly Punch in on only one side of the neck so that they are held. After all loaded neck sill is inserted into the mold to press.
It is not recommended that the thresholds had flown even if the rubber or wooden hammer, because it disrupts by driving radius threshold. The press, which has a section that is injected into the slot threshold helps to thresholds injection into deep notch equally and with the same pressure.

The excess of the thresholds from the side of neck is being cut frontal very sharp and thin pliers, a finely honed scalpel and stone grinding wheels. Sharp edges are lightly frontal hone fine fingernail files from time to protect the fingerboard taped against damage.

Neck after injection thresholds by thresholds sanded surface and leveled to the same height, and polished with fine sponges and toothpaste to shine.

Making a guitar body

After drying, the wood of which we intend to build a guitar body ( I prefer alder ) , move on to merge 2 or 3 parts boards that are pre cut to size . So if you are working in a copy of a Fender Stratocaster , than be glued parts have dimensions of 500 x 340 x 50 mm .
Telecaster model

The boards connect to the reverse -facing sides are cut , the reason that the compounds do not distort . Sides to be bonded must be perfect leveled the lathe . At trial merger without sticking , when pres should not be seen on the other side of the slot . Suggest prepared timber, ready for gluing mark , and squeeze clamps without adhesive . so we'll see any errors in the planing and eliminate disadvantage. If all is well, then top edges of both sides of wood glue (I suggest Titebond glue ) , thin plastic spatula very slim , because the glue is already non pressure material and the excess does not go out. The best way is to wait 3-5 minutes to soak the wood glue , and then squeeze as much strong constraints . Ensure to squeeze a piece radially diluting . Keep it glued at least 24 hours in a warm room , an airy but certainly not in the sun .
After drying glue off our discipline , and so stuck a piece ready for further processing . It is important to follow the procedure . The biggest misconception is young and inexperienced builders to cut out the body first right at the planned dimensions , Why ? , Because the possible errors in the grooves of the neck , pickups and bridge , in the case of multiple errors can not fix .
Thus, the sequence denote the exact measurements and a sketch of a guitar according to the draft or template . After that first it is important to position the slot neck (neck pocket ) . Mark the location exactly where it will be positioned neck . When Stratocaster is to sketch like this:
Stratocaster template and plane

So the neck that you first created and its dimensions ,gnow place on boards which will be neck pocket . When the neck pocket is perfect for scoring , and therefore need a milling machine . , The neck should be adjusted , screw and fasten it will be when the guitar is finished . This will create the conditions for accurate positioning Bridge , magnets and other things that go on the body .
Bridge position ourselves to advance the desired focusing scale , so that the seat where the wires lie exactly on a distance scale measured from the NUT 's headquarters to the wire . By this measure it is easy to determine the place where the bridge will be located . So important is the direction and length scales . It is important to determine exactly what type of Bridge will be installed , or the best that we have at hand .
It is particularly important that the neck bridge positions . This will be determined by the 1:06 guitar tuner project plus stabilizer thin nylon thread ( one for fishing ) . Following the edge of the guitar neck , project plus stabilizer thread and thin nails is knocked into the body of the guitar where the bridge will be .

According to the Bridge position , put the template plate with electronics ( pickguard ) or best original panel that will be installed . The holes on the board and mark pen drill bit 2 mm , depth 8 mm . At the same time mark the magnets while the board to the board ..
Only when everything is checked, the first drill all the necessary holes for magnets , sensors and OUT jack . Do nothing more to shape the board should remain just drawn and well visible on the board .
Only when everything is milled , neck and attached plate with electronics , free format layout boards . First, the upper side plan fine , so that the surface is flat and smooth .
It is important to note that the neck attached to the body is planed the upper hand to be raised by about 5-6 mm above the body of the guitar , or for dept fretboard . The neck should be parallel with the body of the guitar.
After fixing critical parts ( neck , bridge and magnets ) , guitar body can be cut into the final shape . The cuts are about 3 mm beyond measure due to finish . Thinning of the body to measure ( approximately 46 mm ) should be done on both sides . After milling slots ( holes for magnets and switch and output jack ) which are hidden under the board , moves to gradually finish body guitars .
First abrasive paper 150 ( best turnaround eccentric sander ) , and then paper No. 250 In the absence of such a grinder , it can be done manually , sandpaper and " puck "
but the procedure is laborious and time-consuming . The intention is only to the body equally sanded on both sides , and evenly and that there are no holes , cuts or bulges . After sanding , the body should be smooth as glass. On such a smooth body should apply the basic nitro lacquer to dry grinding . If you want the body of the guitar nuanced in another color , it should be clean , dry , apply a stain body from dust . Stains on the nature of the material that is absorbed into the wood and gives beautiful shades of color you choose . The visible contours and texture of wood . Stains should be applied with a cloth , sponge , light but continuous movements . It should be applied so as not to see the transitions . If you want more intense shades , is applied in multiple layers at an interval of 15 minutes .
Once the wet colour must not be more sanding . If we want to remain only on the body contours of the texture of wood , then repeated applied
sand paper No. 400 Then it will be only the contours of the wood there is a di stain penetrated the deepest .
So that is sanded ,cover body impregnate transparent nitro lacquer fundamental for dry sanding . The paint thinned with nitro thinner at a ratio of 1 : 1
We apply a thin brush strokes faster . It is important that the ambient temperature is below 10 degrees . Dried for approximately 1 hour . Thereafter abrasive dry sandpaper No. 400 Best grinder , but it can also manually . Here is where a good proportion abrasive powder like flour . Delete " dust " , and repeat the operation at least three times . After that, the surface is smooth as glass .
Telecaster model

The body of the guitar is ready for finishing . Finish can be made ​​in three basic ways :
1.lacking some of topcoats ( nitro cellulose , polyurethane or water-based varnish ) .
Second Shellack finish is a special procedure that will be described here .

How to change guitar's coils (humbuckers)?

Many guitarists have often had major problems when it should change the magnets ( pickups ) on guitar . Most often it was inexperience and ignorance , and when the owner of the guitar it just took someone else to make the next payment services .
Each manufacturer humbucker pickups and has its own color lines leather- wiring is made guitars . Most of  the method feeder with black and white wire. Since magnets are concerned , these are the poles , ie + or - half . So is white wire was + and black - half .. The problem arises when it comes to humbackers .
What are humbackers? . Humbackers are in fact double single pickups are connected inversely . They can act as a serial connected and connected in parallel , so that the guitar using switches receive various effects .
The most common problem is if you want the humbucker that has only two independent feeders get two pickups so they could be split up or how it says " 
Gray or white wire connects both ends of two magnets inversely . So the positive pole and the magnet is connected to the negative pole of B magnets . Other two wires ( red + black and half - half ) are in fact the main output from both windings .. Wire that connects the two magnets , then gray or white on the center of the cut .
So we get four excerpts of which are now as follows :
A red B + pole magnets
B black negative terminal of a magnet
C gray cut on one side of the A + pole magnets
D Gray cut on the other side - half a magnet.
What we get now ? We got as if we have two separate magnet.
To perform various different combinations ( mRNA , reversing or turning phase ) we have more options.
The figure below shows how to perform these operations using various switches :
Classic Stratocaster guitar wiring:

Les paul wiring:
Three singles paralel wiring
or serial:
Wiring colour code some off guitar manufacture:

If a guitar humming

If the guitar is "cheep " will not be much of surprise , however , the most expensive pieces of your instrument may show.same thing
The electronics and electrical guitar consists of a magnet that converts vibrations into electrical impulses that are amplified in amplifier reproduce in space .

In addition, there are guitar potentiometers which the signal before exiting the stage gain mutes or amplifies .
Capacitors are used to signal that reinforces add high or low tone ( equalizer) .
These electrical signals can be mixed alo near other electrical or electronic devices , especially those in his district have electronic transformers il electrolytic capacitors larger capacity .
In this case, the amplifier to hear unpleasant humming sound . The solution is removal and placement of the amplifier or guitar to a place in space where you will not hear the hum .
Sometimes the amplifier output vroom and this is the sound of 50 Hz , which comes from the frequency of the electricity grid where grounding is not well done . It only helps find the perfect place for the amplifier . Sometimes it helps to rotate the connector socket electrical network but not always successfully .

Mounting a guitar hardware

When finished neck and body of the guitar, then fully completed, proceed to mounting parts electrics, electronics, switches, output components, carrier belt and everything guitar should have. 
On the body mount neck with screws which are not prepared in advance. When you are connected to the neck and body, mounted the bridge and set up two extreme strings on the neck. 
Prior to that, it is necessary to attach the wire tuners on the neck.
Control action and string position
It happens due to the spraying occurred about disproportion position of the door and the body. This usually results in that the strings are high, and that tread on the threshold. Usually these positions (action) can be set to Bridge raising the carrier wire to Bridge, but if that is impossible, then it should be done in controlling the position of the guitar neck pocket
Setup wire intonation
Setup action
. If the position of the wire such that it can not adjust the height of the Bridge ( bend the wire thresholds ) , remove the neck and carry out the thin lining inserts between the door and body . In the present case , cut pieces measuring 58 x 10 mm and submit them by the neck , which is closer to the edge of the guitar body , then the bolts that hold the body and the neck edge closer body guitar . Submit experiment so shims as needed .
I practiced coasters of X-ray films used in hospitals . Ideal as well spend the tone and thin that it might well choose how they should be planted .
If the position of the wire is too high , then we put the pads on the opposite part of the door , then the one closer to the coil.
When you get rid of ideal height , tight neck and body with four screws . Thus we solve the action of the guitar.
Mounting magnet , or at Stratocaster panel containing all the elements of electrical and control tones . Previously prepared and dug holes needed to be set plate , to magnets , switches and potentiometers regulation could easily and without resistance could put on before the marked place .

Stratocaster wiring plate
Stratocaster body 
Before mounting, guitar body looks like:
Attached plates and all the other must guarantee that all the elements in it are positioned and configured to provide the best conditions and playability .
Particular attention should be paid to the amount of magnets on the board . Since the magnets are attached to the underside of the spring , their screwing or unscrewing the changing height of the magnet relative to the wire .

Once mounted panel with parts , if the plate is purchased complete , extract the OUT jack to connect the output. If parts of the electrical and electronics ? ? ( actually an electric guitar with no active electronics has only one electronic part . while all the other electrics ) . In semiconductors , which belong to the electronics is one or two ceramic capacitors
Tone capacitor

,which are used connected in parallel with potentiometer Tone cutting treble , to passively regulate the output .
Other components such as potentiometers , switches and magnets to be connected to each other by purpose and by the very parts . I will mention here an example Stratocaster , which usually mention here . If it supplies well-known brands Seymour Duncan , then ćeshema joining the board will look like this:
*** That scheme was downloaded from SC oficial site and is not for commercial use***
If everything is connected properly, guitar included in the amplifier must not hum , rumble , and tones must be clear . How are the wires connected to ground amps through contact with the plate on the bridge , when hands touch the wires to the amplifier will sound slightly mute because the human body is actually a very large-capacity capacitor .
If you have everything connected properly , plug in the amplifier , slowly turn up the VOLUME potentiometer on guitar and amplifier .. in. .. enjoy your work .
Your efforts will be rewarded with beautiful tones of your work .. 

Maybe even better  than Mark Knopfler ......

*** Source : Youtube ***