Resonator build

[Trevor Davies]

I tried the straight edge on the fret plane thing, the bottom of the straight edge lines up just under the top to the bridge channel with no bridge in.
I tried the bridge set up that is suggested by stew Mac - this didnÂ’t seem to work well with my kit, using their measurements my bridge would be 20/32 I.e. 5/8 inch high.
Also the bridge is way below the underside of the hand rest of the cover plate, they suggest that the strings should be touching prior to tensioning them.

Trevor do you have any idea of how far you bridge was depressed when the strings were on and in tune? Reading internet stuff some said 1/4 to 1/2 inch depression

This is a whole new ballgame to other guitars

Yes, this part terrified me also! And was all new to me.

I also did not like the Stewmac bridge suggestion, or the idea that the strings should be just under the coverplate. Those ideas did not work with my build. Definitely, the string were not touching (or near) the underside of the hand rest.

I'm not sure how much the cone/spider/bridge assembly compressed with strings! When pressing down on the cone I thought it moved only a few mm.

I feel that you may want to shim the lower end of neck socket a touch to increase the neck angle compared to the body. Maybe try a 1mm thick shim (or some plastic to test the idea). This should get the straight edge (resting on the fretboard) to be a bit above the bridge support, and lower the action when the strings are on. But check with the strings on again! Lots of trial and testing needed! Maybe you should order a couple of wooden bridges.

Looking at my wooden bridge now, see link, it is sitting quite low in the support - and my strings are set very high.