On 18/11/2015 14:52, N_Cook wrote:
Ona 1983 Roland Juno 6 synth, so would like to keep original looking.
Easy to wire in some modern replacement.
One of those rotating arm , but slide switch action that used to be
common on amps and tapedecks of the 1970s. 3 position mode switch.
The arm that looks metal but is thin aluminium cylinder over plastic.
Broken away , and missing, from the internal rocking bit.
Switch action is good , but how to fit a shaft?
Cannot simple drill and tap/glue a shaft as there is a fixing/pivot rivet
that goes through that area.
I've sintride fine cone-rasped 4 undercut holes radial to this central
position. I intend 4 bend stiff wires and epoxy going in there , and a
thin walled aluminium pcb stand-off cylinder, that would normally take a
long bolt, slid over those 4 and then epoxied in aswell.
Anyone been here before, or better idea?

4 equal overlengths of .7mm stainless steel wire. Equal to check all are
seated in properly and 20mm overlength to be able to lightly clamp off.
4mm back, 45 degree bend on the end of each. Dry run they nestled in
splayed, and cylinder slid over ok. With a, pin introduce epoxy in each
of the holes, then drop of epoxy on each angled wire end and insert,
while finger-clamp holding the other main lengths together. Slide the
cylinder over, pull the wires as a group lightly , wrt the cylinder,
checking right and true and clamp off. A ring of epoxy around the join
of cylinder to the actuating plastic block in the switch.
First bit of epoxying done. When cured , dribble more epoxy down the
cylinder and when cured , grind off the excess.
I'll take a pic after the first epoxying is cured.