How to Setup Your 

Bass Fiddle

By Warren Yates

How To Setup Your New Bass Fiddle

There are many brands of bass fiddles on the market.  It is always easy to pick a name brand and spend a lot of money to get what you want.  Being from the USA myself, I like to support US made products whenever I can.  On the other hand, money can be a problem when it is in short supply.   One option is to build a washtub bass which is not a joke at all; however, there are some notes that can only be played on a bass fiddle.  Though I love both, my choice is the bass fiddle.  

My bass is a Devilli, made in China.  I ordered it from a company that sells all of their products on eBay!  In 2003, I paid around $540.00, delivered.  It was in a crate, with some assembly required.  It came with a bow, which I will likely never use, and a soft case which is a must.  When it came, I quickly got it together and headed to the local mall where a weekly jam session was going on.  While the bass was a beautiful piece of work, it played like something ready for the trash.  There was very little sound that came from it and I was in pain from the thin metal strings with the high action. I always take another instrument to assure that I have a spot in the group to play, and that one I did play.  Now that I have it set up, I would put it up against the best, and I am glad I have what I do.

The problem was not with the instrument, but that it had not been set up.  You are likely to see the same bass in a music store for around $900.00 to $1000.00, but they will be set up much better.  In that case, don't expect much more than the action to be set with the cheep strings still on it.  In this section, I want to show you how to do the setup yourself so you can purchase at the better price but wind up with a great instrument.  

You might want to try the strings that come on the bass, but I strongly recommend changing them.  More on string types later.

Warning!  Before you start to cut on your bass, think about every move and go a little at a time to assure that you don't go too far, and remember most of all, I am not responsible if you mess something up due to my advice.  Be careful!

Setting the Action at the Nut

The nut is the piece of wood that holds the strings at the top of the neck.  The strings should be set in the grove so that the bottom of the string almost touches the fingerboard.  It is best to cut it a little at a time so you don't go too far.  Cut a little, play a little.  You can decide how far depending on how it plays.  If a strings buzzes, it is likely your style of playing, try different ways.  If you do go to far, a drop of super glue in the grove can give you a new area to reshape.  I use a 1/8" chainsaw file to shape all of the groves.  Notice in the picture how the file slopes away from the fingerboard. This is so that the string has a solid edge to sit on as it leaves the nut.  Buzzing can result if this is not done. 

The action (string height) is set at the bridge for the lower section on the fingerboard.  Notice here how I can slip my fingers under the strings.  That is about how high the strings should be above the fingerboard.  Start high and slowly work down to what you like.
The top of the bridge should be curved to better match the finger board.  Use the 1/8" chainsaw file to cut the groves.  The strings should be about 1/2 the strings height deep; the rest is sanded off.  If you go too far, you can glue wooden shims on the bridge feet to get some height back.  A round bottom grove is best here to avoid cutting the string.
The picture the right is a picture of how the bridge and sound post are set in a fiddle.  The same rules applies though the shape is a little different.  The rectangles are the feet of the bridge and the round circle is the sound post inside the bass.  I have seen basses that had the sound holes in the wrong place.  For a 3/4 bass, I set the string length to 42 inches from the nut to the bridge.  You will lose sound if the strings are too short.  Long strings mean more tension and more tension means more sound.

 One of the most important things on a bass fiddle that controls sound is the sound post.  If a sound post is set correctly, the bass fiddle will be even in sound.  If it is set in the wrong place, one string can be dead while the next string is strong.  Sounds can loop the box as if there is a rat inside it running laps.  A sound post should be straight up and down.  If it is too far away from the bridge, you might get a hollow sound.  Too close, or under the leg and it can be too stiff.  The side to side adjustment will control the evenness of the strings.  If a string is dead, move it over slightly and see if it opens up.  

How do you get in there to set it?  A (fiddle) sound post tool is a bent piece of flat metal that is sharp on one end.  The sharp point is used to stick in the the side allowing you to get it wedged into place.  For fiddles, the other end has curves to give you push and pull capabilities.  With that, you can move one end at a time until you have it in place. See Soundpost Setters.  A fiddle sound post setter can be used to get the post close, but the pushing end is useless on a bass because of the size.  For this I have another trick.

I use a framing square to tap the post around.  To assure that you don't scratch your finish, line the area around the hole with masking tape.  
You can make tools, such as I did here, that will allow you to reach inside with a little more stability.
Many times the necks on these basses are too thick and will cause hand cramps trying to reach around them to play.  I cut my neck down until it felt right.  Unless you are an experienced person at wood working and carving, you might not want to start this project.  Find a bass that feels good and copy it's dimensions.  You don't want to get into the dark finish because you will not be able to match the paint. The area that is cut away will be a different color which is normal.  I used food coloring to get the color that I wanted.  After everything is to shape and color, a coat of lacquer and buffing finishes it up .  I don't want to say much here because I have heard of necks warping from this.  By all means, do this work with the strings off until the paint is cured. 

What About Strings?  More on this subject later.

 

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 (c) Copyright 2003