I have run out of things to try for XYZ calibration failure
 
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I have run out of things to try for XYZ calibration failure  

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daniel.o10
(@daniel-o10)
Active Member
I have run out of things to try for XYZ calibration failure

A few days ago, I noticed my prints had started getting sloppy so I recalibrated my printer. It was weird because there was nothing that had changed in between my last perfect print and when they started messing up. Now it won't finish an XYZ calibration at all without failure. Here's what I've tried:

>Pinda probe works (i.e., Z changes to from '0' to '1' in the presence of metal during check endstop calibration); Pinda probe at proper height (dime measurement)

>Endstops readjusted and in proper position. 

>X belt tightened, Y belt tightened

>Pinda probe in proper position for first calibration (inside circle)

>X and Y axes adjusted so perfect alignment

>Factory reset

> Calibration reset

The printer is just giving me the generic "XYZ calibration failed, check manual" which is supremely unhelpful as these are all the fixes the manual recommends. Any other suggestions?

Posted : 17/08/2019 1:39 am
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(@)
Illustrious Member
RE: I have run out of things to try for XYZ calibration failure

A few days ago, I noticed my prints had started getting sloppy so I recalibrated my printer. It was weird because there was nothing that had changed in between my last perfect print and when they started messing up. 

English - and how we trap ourselves:  Nothing had changed -- yet -- prints were getting sloppy so I recalibrated.

So something DID change. Now to figure out what.

XYZ calibration is what determines how the AutoHome finds the center of the cal circle.  So something worked enough to get XYZ completed - or your Factory Reset really wasn't a full reset (you need to select the correct option to do a data clear to reset calibration values store in a prior cal). 

It would be helpful to know a few more details about what exactly the printer was doing when the failure occurs. Left right movements, up down movements, buzzing around one of the cal points, etc.

 

 

 

Posted : 17/08/2019 5:25 am
Swede
(@swede)
New Member
RE: I have run out of things to try for XYZ calibration failure

Several months back I had a similar issue.  Found that the PINDA probe was acting erratically.  It turned out that the wires from the probe had stress cracked within the wiring harness back to the Rambo board.  I identified the problem by turning the PINDA probe proximity light on, then wiggling the wiring harness, then unraveling the plastic spiral wrap on the harness and then grabbing the PINDA wires in different places and flexing them.  This ultimately identified the location of the wire break.  I cut the wire in the location of the break, then soldered the wire ends, taped the connection and replaced the wires back in the spiral wiring harness.  Lesson I've learned from this is that all the wires are likely over time to have stress fatigue from the continual flexing - just hared to predict when.

Posted : 17/08/2019 9:12 pm
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