5/7/2020 Acoustic Guitar Plans Pdf
Tinozza Acoustic Bass GuitarTheacoustic bass guitar (ABG) is an interesting instrument. Although ithas been around in one form or another for quite some time, theinstrument in its present form became popular as a result of MTV andits Unplugged series of videos of generally electric bands playingwith acoustic instruments. It has been popular for long enough now tobe a standard instrument type. In general, ABGs are the least bass-yof acoustic bass instruments, owing to their generally (relative to,say, the double bass) small bodies and low mass plates and bridges.Similar in construction and size to the flattop acoustic guitar, theformant peaks of the ABG are similar and often identical to those ofthe guitar. This means the instruments have the characteristic soundof the guitar.
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As you probably know from reading other pages on thissite, one of my overarching design goals is to replicate as much aspossible the tone of the acoustic double bass in smaller instruments.Due to the ABG's relatively small size and low mass it is quite achallenge to coax upright-like tone from the instrument. Fortunatelyother factors play critical roles in shaping the tonal impression theinstrument makes. The design of the Tinozza acoustic bass guitarexploits some of these other factors to produce an instrument withupright bass tonal qualities.Initially appeared: June 13, 2006Last updated:August 13, 2019. About the InstrumentThe Tinozza acoustic bass guitar is similar to most ABGs in size,construction and materials. The scale length is 34' and theneck meets the body at the 14 th fret. Neck dimensions andstring spacing follow the standards set by Fender electric basses.The fingerboard radius is 7.25'.
The body is 18' wide atthe lower bout. When it comes to bass tone bigger is always betterfor an ABG but bigger bodies make it increasingly more difficult forthe player to get his or her arm around the body. Wood suitable fortwo piece plates is also not that easy to find for instruments muchwider than this. At 6' the body is deeper than most ABGs.
Thismeans it encloses more volume and thus lowers the lowest resonance ofthe instrument somewhat closer to the ideal for bass instruments. Onecan't get too carried away with body depth for the same reasons ofergonomics that limit the width of the body – too deep and theplayer has trouble reaching around the instrument to play it.The sides and back of the instrument shown are constructed fromeastern soft maple.
May 15, 2016 Buy Martin D28 Style - Guitar PLANS to Build - Full Scale acoustic guitar: Guitars - Amazon.com FREE DELIVERY possible on eligible purchases. Download the PDF if you plan to view or print the plan. Gibson L-00 (1940). This is a plan of an OM acoustic guitar ( Orchestra Model ). I drew the bracing.
The top and internal braces are spruce. Themahogany neck has an adjustable trussrod and either steel or graphitecomposite stiffening bars. The fingerboard and fittings are made ofMadagascar rosewood. The body of the instrument shown here isfinished in an antique varnish and the neck is simply tung oiled. Thefully removable neck is fitted to the body using two bolts, in thestyle of (older) Taylor guitars, and the fingerboard extension isbolted to the top using a lightweight nylon screw.The top uses a simplified bracing pattern similar to that of thegreat sounding Tacoma ABGs.
The Tinozza employs two longitudinal barsand two transverse bars – one heavy bar to support the end ofthe fingerboard and a thinner transverse bar just in front of thebridge. The sound hole is located in the upper bout.
Most of the timewhen this sound hole position is used the claim is made that thisincreases the acoustic volume of the instrument by increasing thevibrating area of the top. Interestingly enough, there has never beenany formal research to support this hypothesis. The sound hole is locatedhere in the Tinozza bass primarily so the simplified bracing patterncan be used. This location also does lower the Helmholtz resonance abit, too.The tone of the instrument is closer to that of an acoustic upright bassthan other ABGs. Of acoustic, electric, and electric upright basses hasindicated that the key quality that distinguishes the tone of theacoustic double bass is damping of the higher harmonics. In thedouble bass, these harmonics decay much more quickly than they do inbass guitars, and this more than anything else is what makes anacoustic upright sound the way it does, when played pizzicato.
TheTinozza acoustic bass guitar has a feature which make its harmonicdamping profile more closely resemble that of the double bass. Thisinstrument uses orchestral bass strings (¼ size) rather thanthe more commonly used electric or acoustic bass guitar strings.Orchestral strings feature a high degree of internal damping, andthis contributes substantially to the uptight-like tone of theinstrument. The use of orchestral strings required substantialvariation from traditional ABG bridge construction and stringanchoring facilities.Since the strings are quite a bit longer than bass guitar stringsthey must be terminated in the body.
This arrangement generally worksbest with the kind of floating bridge used in the violin familyinstruments. Unfortunately the breakover angle is too shallow forthis style of bridge to be used. In the Tinozza bass the stringanchor holes are placed so that each string bends horizontally at thebridge, providing a suitable 15° break aside angle.
Thiscouples string tension to the bridge saddle with enough force toprevent string rattling and provides good acoustic coupling to thebridge. This arrangement works particularly well with the bracingpattern used, which provides for good flexibility of the topperpendicular to the grain of the wood.The word Tinozza is Italian for bathtub. Not the kind of thing most folkswould name an instrument but I use it in homage to the American folkinstrument, the washtub bass.
ConstructionThe downloadable copyrighted instrument plans are made available for non-commercial use only and may not be redistributed.Use this plan if you have or have access to alarge format printer.This isa tiled version of the plan above. It can be printed out on anyprinter and assembled into a full-sized plan.Also included for this instrument are pictorial. As the construction is pretty typical of anyinstrument of the flattop guitar class, these descriptions focus onthose aspects of construction which are unique to this instrument. Variations and ModificationsAs mentioned making the instrument bigger can only improve itstone, but doing so carries ergonomic and materials availabilitypenalties. About the only variation I have considered to date was tobuild a more conventional ABG version, one that uses standard bassguitar strings anchored at the bridge. The CAD files above include such a bridge, and the pdf files below show that bridge as well as frets.
Note that this variation is untested. I would expect the tone ofsuch a variation to be more guitar like, and less like that of thedouble bass. A useful modification to the basic design would be toadd an access port to the butt end of the instrument.
Large bodiedguitars with sound holes in the upper bout make it impossible for allbut those with very long and skinny arms to work inside theinstrument once it has been assembled.Use this plan if you have or have access to alarge format printer.This isa tiled version of the plan above. It can be printed out on anyprinter and assembled into a full-sized plan. See What Others Have BuiltThis bass has been quite popular among bass builders, some of whom have come up with a number of interesting modifications to the basic plan. Doug Balzer did a beautiful job on a straight ahead version. Check it out on.
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