Quote Originally Posted by Voicecoil View Post
So, I've largely finished the mechanical part of my little CNC gantry router/mill (see build log here: http://www.mycncuk.com/threads/12593-Game-on!), and am starting to get together parts for the control box. All the stuff with PSU, stepper drivers is pretty obvious, but I'd welcome opinions on what I should have in the way of front panel controls (switches): some builds I've looked at have basically just an E-stop switch and that's it, others have quite a lot of controls. So far I can see I deffo need the following:

Mains on/off (NVR switch)
E-stop
Limit over-ride (so you can jog back off the end stop)

Things that look like they might be useful are:

Spindle On/Off??
Water pump On/Off?? (interlocked with spindle)
Coolant On/Off??

Cheers,
Trevor
I’ve also got:

Estop reset momentary button (you need something to energise the latching relay)
Switch for lighting

Plus provision for cycle start pause stop and gcode rewind, plus feedrate override pot and feedrate reset. I’ve yet to implement these though . . .