Latest update. Returned from the Far East on Friday to 12 new meter lengths of rod and the correct die for cutting threads. First problem, the die wouldn’t fit my holder without being pushed in which meant it was cutting too deep. I made a rod, slightly wobbly at the thread so resolved to wait for a new die holder. Then the impatient voice in my head took over and, helped by the improvising voice in my head, used a pair of mole grips (the best tool in the world!) to hold the die and successfully made all the rods for phase 1. In case you’ve not seen how Sierra do their rods, the threaded part actually sits at the crank end into a little nylon bush. The other end has a hex brass nut and two nylon spacers and is finished off with another round spacer set across the way. This means the changer finger is pulled by a round surface rather than a random part of a hex tuning nut which seems like a very good idea. I think I might adapt this idea for the MSA, perhaps by putting a drilled bead in between the tuning nut and the finger. Cant do any harm!
Anyway it now looks like this-
And it works too! It was certainly a lot easier than last time I did this and only had to make a few adjustments so far to make it work, usually just swapping round rod positions to get a better pull. The other problem was the vertical lever which was just too low so I thought I might have to make a new one. However a good squeeze in the vice removed the bend and it now sits in the right place at least though I still think I can improve it. A work in progress…
The other major change was to string 14, my low A. (I’m tuned to what I call a D9/G6 extended) There seemed to be little point in that following the other A’s on the A pedal so I reversed it and it now goes down to low G when the A is pressed. A mighty earthquake style noise and similar to what I do with my string 12 on the AF combination on both guitars. The whole point of the bass end is to provide a bass so it wants to be roots all the way I reckon.
And now I’m on to the fine tuning which should take about a year if last time is anything to go by…..
Cheers
Calum