Hello. I am trying to install an original Z prob. Round with 2 wires Black & White. and a Red with an alligator clamp.. I think my Lead 1010 is a bit older as it has an Arduino Board controller. Looking through the Forum, I found info regarding the connections to ground and pin A5. But before I melt my electronics - ARE there changes/or added Stuff that are needed in the controller software to operate the Z Probe? Thanks
please post a picture of your controller and probe. at a guess I'd say black to ground and white to pin A5 BUT first check really carefully that your spindle is a) not grounded b) not carrying any voltage at all. AC can leak all over the place and if you feel any tingle on the spindle it will (maybe) kill the arduino or cause other weirdness when you connect the alligator clip to the bit. Edit: I'd add a resistor to the A5 pin, maybe 150 ohms, or maybe 50ohm to each wire of the probe, this will limit current flow should either of the wires contact something it should not. My strong preference is for an opto isolator between the Arduino and the probe. Similar to the way the GRBL Wiki advises using optos for the limit switches except the way I wire it it is not truly isolated but does prevent EMI and protects the Arduino pin. I will have to look at home and see if I can find the circuit I used. No, there are no changes to the software to operate the probe (unless your opto wiring inverts the sense, then you have to change a GRBL setting)
Hi Roger To upload the pictures click the 'Upload a file' button at bottom right of this reply box (on a PC, a phone/tablet will have a button somewhere similar)
I use only the single Z probe and seem to remember having an issue at first with false triggering or something like that after following a diagram I found online. I overcame that by wiring the probe base (black) to ground on the Arduino Uno and the red (alligator clip) wire to A5 on the Uno (as David mentioned) . Importantly, I also have a resistor (10k I think?) from A5 to Uno 5v. Been good for about 4 years now. Pic of prototype shield board shown.
