Hi,
do you actually use the switch?
I had previously used a VistaCNC P1A pendant, and it had a switch for changing jog increments....which I hardly ever used. So much so
that I basically wore the pendant out and that switch is still new.
When I made my own pendant I just have a single sprung loaded toggle switch for jog mode. In the normal position it is in Incremental
mode, and I have found that 0.05mm to be almost prefect, fast enough to jog a reasonable distance and yet sufficiently fine to touch off
for anything but the most demanding of jobs. With the switch in the off-normal (sprung) position the machine is in Velocity jog mode,
which is great for traversing big distances....but absolute disaster for touching off, hence releasing the toggle switch and the machine
reverts to the much safer Incremental mode. The switch requires one, just one, signal wire, too easy!
Craig