Vespa Bob
Well-known member
One of the trickiest tasks for me in instrument building is the attachment of the bridge. First, there's the there's the measuring to be done, a task requiring absolute precision in every direction, secondly, one needs the correct clamps for the job, then comes the part that causes me the most grief - creating a clean, bare wood patch upon which the bridge will be glued. There are two, possibly three ways I know of to accomplish this, one is to mask off the bridge area before spraying and the other is to spray the entire top first, then after the lacquer has dried, scrape it down to bare wood on the bridge area. The third method, although I've never heard of anyone doing it this way, is to glue the bridge on first and mask it off before spraying on the finish. I have tried the first two methods and prefer the first as I find it easier than trying to scrape off the dried lacquer. Both these methods however, leave a ridge, or step at the edge, the lacquer standing proud of the bare wood, even if only a minimal amount of coats are applied. It is beyond my capabilities to create an exact fit where the bridge would drop in perfectly without some imperfection showing up once it's glued. What I have done is to scrape out the area a shade smaller than the bridge footprint, then chamfer the edge of the bridge to allow for the "step". This works somewhat, but I am yet to produce a perfect bridge to top joint.
I would love to here how this task is carried out by those who are more experienced than me.
Bob
I would love to here how this task is carried out by those who are more experienced than me.
Bob