Let the fun begin !!! ???

[PAULRO]

just stopping MACH 3 , no relays involved. where will i find auto lomit overide? spoke too soon , found it! cheers for that

[PAULRO]

i have the homing set up , i think, but after reading a thread here about auto squaring the gantry i think it still needs tweeking. i think the ''X'' and ''A'' slaved are homing together and backing off together. . i thought that when ''X'' home is triggered it backs off and then ''A'' home sets itself the same way?

[JAZZCNC]

i have the homing set up , i think, but after reading a thread here about auto squaring the gantry i think it still needs tweeking. i think the ''X'' and ''A'' slaved are homing together and backing off together. . i thought that when ''X'' home is triggered it backs off and then ''A'' home sets itself the same way?

Yes and no.!! They both move together and which ever axis comes across a swithc first it then stops and backs off and the other keeps going and does the same.
When you have the switches set exactly together then it's seemless and you'll struggle to see this happen. If you want to see it happen then move switches further apart. Beware thou it will twist gantry so it's a good idea to remove motors or drive to ballscrews etc to see it happen.

Limit overide is here.

[Clive S]

Paulro

The relevant leds are on , on the BOB, my ports and pins are set correctly( they stop the M/C when triggered). but they only trigger briefly on the diagnostic tab. how are yours set up?

Mine are working like yours as Dean has said it will work different to the manual.
.
Regarding the homing you can adjust the racking by adjusting one of the homing switches until it is correct. X and A will back off the switches independently, it is hard to see when the gantry is square. But if you want to see it happen remove the belts (if you are using them and the are not direct drive) and put a maker tape on each motor pulley and then home the x axis if you then trip one switch the motor will reverse and stop when you release it. The same will happen to the other side. ..Clive

Some Yorkshire man beat me to it

[JAZZCNC]

Some Yorkshire man beat me to it

Got to get up early to beat a Yorkshire pudding.!!

[PAULRO]

spot on , CLIVE /JAZZ, i spent a good bit of time initially setting up both switches square so it does look like it's not happening. i must try taking off the belts and using tape as suggested. good one .

[PAULRO]

i have 2M of 22 awg screened 4 core that i had set aside for the VFD control signals between BOB and VFD, This is the equivalent of 0.3 squared . i just read the VFD manual and it reccommends 0.5 squared . i can't get 0.5 squared locally . i'm about to give the 22 awg a try but would like to know what would the experienced heads use or have used?

[Clive S]

i have 2M of 22 awg screened 4 core that i had set aside for the VFD control signals between BOB and VFD, This is the equivalent of 0.3 squared . i just read the VFD manual and it reccommends 0.5 squared . i can't get 0.5 squared locally . i'm about to give the 22 awg a try but would like to know what would the experienced heads use or have used?

For the control cable this will be fine. ..Clive