Z probe causing X to slam X min endstop

The_Geak

Any time I enter G32 to auto level bed my X axis slams in to the X min endstop which does not stop it, it will continue to grind for a couple moments then go on to probe the bed. How can I make this stop?

The endstop works any other time when I'm homing or any time the X flag hits it, just not when auto leveling with G32 command.

Also my z probe isnt very accurate. Some times auto bed level makes extruder hit bed, some times its too high in the air and every once in awhile it gets it right. I have tried adjusting Z probe hieght in eeprom settings but they seem to have little effect since accuracy isnt really there.

The_Geak

I'm using ramps 1.4 board, optical endstops with repetier firmware. every thing else seems to work fine other then Z probing isnt really as effective as I hoped it would be.

The_Geak

Also, If i try to auto bed level the printer two times with out shutting the printer off first the 2nd time causes for x to crash in to z min end stop as usual then the rest of the axis start to slowly move in all directions while the 3D touch probe blinks its red light.

The only way I can effectivly probe my bed is to use G32 command, if the extruder does not come to where it is needed due to probes poor accuracy I have to run the G32 command again in order for it to work I have to shut off the printers power then turn it back on and apply the G32 command if not the above will happen.

Repetier

AT start of G30/G32 the probe is activated meaning offsets are applied. Sounds like your xy offset is not set right. Note that z probe offset is mm and not steps like extruder offsets!

The_Geak

I set it to 45mm i measured with micrometer. if looking at it, it is set at 45mm to the right side of the extruder indicated by a positive value. do I have to set the Y value as well? How Do i find the Y value if so?

The_Geak

I have it set to that in both the eeprom and the configure.h file

Repetier

It is offset from your virtual 0,0 position you use for extruder offsets. 45 right means on activation it will move 45 mm to the left. So the minimum x position you can probe is 45 and you should not activate probing if you are at x < 45!

The_Geak

I dont activate the probe until I've homed all the axis's.

I'm not understanding how to fix the problem. If I just set all the offs sets to 0 will my problems go away?

The_Geak

I put x offset back to 0 and it no longer slams in to the carriage. I must have misunderstood what this was for as I don't really understand it. I originally thought it was how far offset my Z probe was to the extruder.

Repetier

Yes it is the offset to the extruder. Normally first extruder has offset 0,0 so it is the reference.
After homing I assume you are at x=0 so activating goes to x=-45 (virtually). So you need to run G1 X45 to move 45 to right and then activate probe. Also make sure that the area where you probe is not left of x=45.