Gold Supporting Member
- Mar 22, 2007
- Reaction score
Sorry I left my writing open to misinterpretation:
I meant to say that I build with the edges flat, and on completion it looks like its got a 'dip' below the level of the binding edge due to the reflections. I did not mean to state any rules regarding real gibsons.
The terminology that seems to get confused is what recurve refers to- yes there is always a concave between the slope and the binding, the question is, does this recurve dip below the level of the binding, and if so, by how much?
In replicas, some exaggerate the concave if it is done with a smaller radius at the bottom of the slope, and in another way it is exaggerated by going down below the bindings level, or both in some cases.
In the photos above the rulers demonstrate a concave, but they are not held level with the back of the guitar or square to the sides to show the level of the bottom of the curve in relation to the binding.
To be fair, neither the machine nor its users are really at fault.....the cost cutting since the LP was reintroduced are more responsible for the carve changing its profile. Its only just recently that some of the more complex top carves have returned to the USA line of guitars.At some point in time, as a labor saving device, Gibson brought this atrocity into their factory, called a "slack belt sander", which was made for sanding doors flat in a hurry. Gibson has had an employee using this monstrosity to quickly sand out the machining marks left after top profiling. Unfortunately this machine, and the employee(s) running it, have often been responsible for taking a nice LP body with a nice recurve, right off the profiling machine, and erasing most of the recurve in the process of sanding it out.
For reference, the top carving cycle time for PRS's CNC top carving mills is an hour and it then has to go to hand sanding. So ultimately I can carve a top in (roughly) the same time it takes the PRS factory to do it.