sequoia
Well-known member
A while back I realized I could not use standard bridge clamps because there was no room in the thin ukulele I am building. Ken kindly responded with plans on how to make a bridge clamp using tuners and fishing line. I constructed the contraption below.
Its construction is self-explanatory I assume. Now Ken's clamp is probably made of walnut, perfectly aligned, perfectly square and buffed to a high gloss. I just used some plywood and pine off the kindling pile and it isn't pretty, but it will do the job. Sorry Ken.
Below the bridge location is determined and taped out with 2 layers of masking tape. There is no finish to remove since the location was taped off prior to finishing and is bare wood. The holes are drilled. 1/8 inch holes which are much larger than needed but since this uke is going to have an under-saddle pick-up, I can kill two Terns with one stone and only drill the holes once. The fishing line (actually a nylon uke string) is passed and fished through the sound hole. A tricky little problem by the way and requires a Zen attitude. A lead sinker is attached to a swivel and is used as the stopper and will butt up against the bridge patch. Note the line attached to the other side of the swivel so that the stopper and lines can be retrieved after the bridge is clamped and glued.
Lines up through the bridge, threaded through the tuners and clamping pressure applied. Masking tape removed with glue squeeze out and bridge is clamped.
Some thoughts:
- What a Boy-Scout project that was. Took the better part of an afternoon. Fun in a way. At least I got to go through my old fishing tackle.
- One problem: It is hard to get any tactile feedback on how much pressure you are applying when cinching down the caul. No way to really tell and you don't want to break the string. That would be a major bummer. I went by watching for "good squeeze out" and quit applying pressure. I suspect I could have applied a lot more pressure. Rack and pinion tensions can get really strong. I think you could over clamp with one of these things and glue starve the joint.
Anyway, the system certainly works, but it is a lot of work and slow to set up. However, in this rare situation, it is the right tool for the job. Thanks Ken!
Its construction is self-explanatory I assume. Now Ken's clamp is probably made of walnut, perfectly aligned, perfectly square and buffed to a high gloss. I just used some plywood and pine off the kindling pile and it isn't pretty, but it will do the job. Sorry Ken.
Below the bridge location is determined and taped out with 2 layers of masking tape. There is no finish to remove since the location was taped off prior to finishing and is bare wood. The holes are drilled. 1/8 inch holes which are much larger than needed but since this uke is going to have an under-saddle pick-up, I can kill two Terns with one stone and only drill the holes once. The fishing line (actually a nylon uke string) is passed and fished through the sound hole. A tricky little problem by the way and requires a Zen attitude. A lead sinker is attached to a swivel and is used as the stopper and will butt up against the bridge patch. Note the line attached to the other side of the swivel so that the stopper and lines can be retrieved after the bridge is clamped and glued.
Lines up through the bridge, threaded through the tuners and clamping pressure applied. Masking tape removed with glue squeeze out and bridge is clamped.
Some thoughts:
- What a Boy-Scout project that was. Took the better part of an afternoon. Fun in a way. At least I got to go through my old fishing tackle.
- One problem: It is hard to get any tactile feedback on how much pressure you are applying when cinching down the caul. No way to really tell and you don't want to break the string. That would be a major bummer. I went by watching for "good squeeze out" and quit applying pressure. I suspect I could have applied a lot more pressure. Rack and pinion tensions can get really strong. I think you could over clamp with one of these things and glue starve the joint.
Anyway, the system certainly works, but it is a lot of work and slow to set up. However, in this rare situation, it is the right tool for the job. Thanks Ken!