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General Mach Discussion / 1 of the axes is homing, the other 2 don't...cannot find a solution
« on: April 03, 2013, 05:47:38 PM »
Hi all
I changed these days the old magnetic switches (unreliable due to temperature changes) with inductive switches. All fine, they seem to work until I try doing the RelAllHome. The X works fine, while Y and A (A slave to Y) do not work in the homing sequence.
In the Diagnostics tab I can see all the 3 switches when they are activated/deactivated.
I tried to make the separate homing from the Diagnostics tab. X again works fine, while when doing it for Y or A, the gantry does not stop when the switch gets activated, but continues until either I stop it or hits the physical limit.
All the switches are identical. Also the settings are similar for the X, Y and A (in Ports and Pins> Input Signals), except that A is slave to Y.
I tried with and without the A-- and Y-- being activated. Same thing. When Y-- is active, I can get the Limit Switch triggered message, and the gantry stops. but in the homing sequence, the switch is activated but Y keeps on moving.
I tried also to unslave A, thinking that it might be smth there. I tried again to home just Y, but again the same result.
When i use the original RefAllHome script, both Y and A approach limits, but when Y hits the limit it continues the same direction, while A moves the opposite direction - but none actually stops as they are supposed to do.
I would be happy to be able to do even just the separate homing, but i cannot get that one work neither. It is very frustrating as I can get very accurate activation of X limit within 0.01mm range, and this performance could improve a lot the quality of the parts I cut.
Any suggestion is more then welcome.
thanks
Marius
I changed these days the old magnetic switches (unreliable due to temperature changes) with inductive switches. All fine, they seem to work until I try doing the RelAllHome. The X works fine, while Y and A (A slave to Y) do not work in the homing sequence.
In the Diagnostics tab I can see all the 3 switches when they are activated/deactivated.
I tried to make the separate homing from the Diagnostics tab. X again works fine, while when doing it for Y or A, the gantry does not stop when the switch gets activated, but continues until either I stop it or hits the physical limit.
All the switches are identical. Also the settings are similar for the X, Y and A (in Ports and Pins> Input Signals), except that A is slave to Y.
I tried with and without the A-- and Y-- being activated. Same thing. When Y-- is active, I can get the Limit Switch triggered message, and the gantry stops. but in the homing sequence, the switch is activated but Y keeps on moving.
I tried also to unslave A, thinking that it might be smth there. I tried again to home just Y, but again the same result.
When i use the original RefAllHome script, both Y and A approach limits, but when Y hits the limit it continues the same direction, while A moves the opposite direction - but none actually stops as they are supposed to do.
I would be happy to be able to do even just the separate homing, but i cannot get that one work neither. It is very frustrating as I can get very accurate activation of X limit within 0.01mm range, and this performance could improve a lot the quality of the parts I cut.
Any suggestion is more then welcome.
thanks
Marius