just flicking spindle on and off with a relay

[kingcreaky]

Thing is, I dont think im even getting a change at Pin 17 let alone there being sufficient to move a relay

Ive just got the voltmeter between pin 17 and ground and jumping up and down on Mach3 and I cant get it the figure on the voltmeter to budge

im clicking at the spindle controls... inventing new gcodes,

M3
M4
MPLEASE

still nothing

so I suspect im either triggering it wrong in mach, have set it up wrong, of ive missed configuration somewhere... or the BOB is incapable of handling outputs?

arent you meant to be at work? skiver!