I have 2 commissions coming to a close in the next few weeks, but in the meantime I'd like to share with you this tool I created.
Now the maths and physics behind surface resonance and bridge placement in instruments is complicated. Especially if your instruments are a bit special, like mine. That's why I came up with this simple tool for finding the sweet spot!
It's simply a piano tuning pin (which I can sell you!) and a little bolt for an anchor. It works thusly: