Making a Bass Guitar – 1
Last summer, I made a bodhran. It now looks like I’m going to start doing a new project every summer, which is cool by me!
This summer’s project is a 5-string fretless, hollow-body bass guitar. Or maybe semi-hollow is the real description. Not sure. And once again this is a project that will show you don’t need thousands of dollars in tools to be able to make something cool. Granted, it would definitely have been easier, I’m sure.
Over the last couple of weeks I’ve just started pulling together the design and plan. This picture is my inspiration for the bass. I only wish I had bookmarked the site of the creator. If anyone knows, please let me know. This was a custom job he had done for someone and not a stock bass, so finding it again has proven difficult.
I love the idea of the jazz-type bridge and string connection, so am definitely going with that. Also shooting for a sound that is much like an upgright, but with a bit more modern edge to it. Wish me luck!
The body is a big block of Ash that has been glued together to get a large enough block of wood. The top – was an awesome steal from Luthier’s Mercantile. It was listed as a medium flame redwood, and very good pricing (on clearance) compared to most of the topwoods out there. When it arrived I was thrilled to see that it has a bit of that burled feel to it. Beautiful piece of wood!
Getting Started
The first step in the actual construction was to glue the two pieces of ash together. That proved to be a bit of a challenge since my plane didn’t seem to be working well for it. Turns out, I probably just didn’t know how to use it well. Have had it for a while, but never used it much. I got it working much better for the top, though.
Then I used a small orbital sander to smooth out the sides and get them fairly level. The lumber had a slight bow to it that became much more obvious once the sides were glued together. That took a while and is one of those places where, if you wanted to do this for a living, investing in a big powered plane sander would come in handy. This took around 2 hours to level out both sides to an acceptable flatness. Since I will be doing more sanding once the body is put together, and will be routing out the other side to make a hollow body, I didn’t need perfection at this point.
The next step was to get the edges on the top wood ready for gluing. For some reason, finding good information on how to do this online or even in the books I had proved difficult. I finally stumbled across a video on YouTube that showed someone doing it this way. Worked like a charm.
The two bookmatched sides are placed on top of each other, with the two sides that will join facing out. Using a block on the back of the work area to make sure the boards stay in place is a must. Then, I put a piece of cardboard below the wood to lift them off of the surface a bit and give the planer plenty of room. Can’t have only portions of the wood getting shaved. You then set your plane to be as small and as level as you can so that you’re only ripping out small portions of the wood at a time. This makes sure you don’t eat away at more of the wood then you need to. After all, this is the edge where the patterns come together so the less wood you need to remove the better it looks.
The goal here is to get as perfect as a match between the sides when glued together as possible. Keep holding it up to a bright light with the ends together until you have a perfect match.
Gluing the Top
I didn’t get enough photos of this process but the steps are pretty simple. Put several nails along the edge of one piece of the top. Then put a strip of cardboard or something about 1/4″ thick or so under where the joint will be. Place the other right next to it, fairly tightly, and place nails very tight against this other half. At this point, the middle will be raised up. You’ll put some glue down one edge and then push the pieces down together. The pressure from the nails on both sides will hold the wood in place until it dries. You’ll also need something putting pressure on it from the top to make sure it stays in place. That’s why the toolbox is sitting there.
Cutting the Body
A bandsaw is the preferred method, but the orbital jig saw worked just fine. Maybe a little slow, though. The main thing to watch out for is the sharp turns. Don’t feel like you need to do it all in one path. Remove large chunks of the outer wood so it’s easier to manage. Especially around the tighter turns.
Clean Up
And here’s where we stand after this last weekend. I took the orbital saw and did a rough sanding of the edges to smooth out some not-nice areas where the jigsaw and my inexperience left much to be desired. The basic shape is there, though I need to do some careful cleanup around the neck joint before I’m comfortable calling this portion done.
Oh, and finally decide whether I’m doing a set-in (glued) neck or a bolt on. My original thought was a set-in, but that leaves no room for error, so I might be rethinking that.













