Eris Calibration Inconsistent
Posted: Sun Jan 22, 2017 10:56 am
Hey guys!
I’m having a kinda love hate relationship with my Eris at the moment. When it’s working it’s just fine, but getting it to that stage is proving to be difficult.
I think the word I’d use to describe it is ‘inconsistent’ and centres around the auto bed levelling routine and getting that to work reliably.
The first problem is that during the calibration routine, the head ‘pecks’ in mid air, rather than travelling down to the bed. It seems to happen more in the positive Y direction, say X0 Y65 (like the first point on the new Delta Calibration Wizard G Code download).
So far I’ve checked:
The hotend is clean and free from filament
The hot end assembly is correctly screwed to the white carriage
The carriage cable is seated correctly
All the belts and pulleys are tight and seem to have the same belt tension
Everything seems to move up and down freely
The bed locking tabs are tight
After a ‘home all’, I noticed that the Z tower motor wasn’t holding as strongly as the other two, so I swapped the position of the motor connector on the Rambo board with the X tower. When I swapped the connectors, both motors were holding OK and now I’ve swapped them back, all three motors hold as strongly as each other, so maybe a dodgy connection was the problem.
So ‘air pecking’ is the first problem. Sometimes, I can run the calibration routines OK, but when I come to print anything, the bed is obviously not level as shown on the attached photo.
In this print the first layer setting is 0.3mm, and the actual thickness of the priming loop is 0.26mm at its thickest.
I’m not entirely sure where to go next and any thoughts would be appreciated!
Thanks
Andy
I’m having a kinda love hate relationship with my Eris at the moment. When it’s working it’s just fine, but getting it to that stage is proving to be difficult.
I think the word I’d use to describe it is ‘inconsistent’ and centres around the auto bed levelling routine and getting that to work reliably.
The first problem is that during the calibration routine, the head ‘pecks’ in mid air, rather than travelling down to the bed. It seems to happen more in the positive Y direction, say X0 Y65 (like the first point on the new Delta Calibration Wizard G Code download).
So far I’ve checked:
The hotend is clean and free from filament
The hot end assembly is correctly screwed to the white carriage
The carriage cable is seated correctly
All the belts and pulleys are tight and seem to have the same belt tension
Everything seems to move up and down freely
The bed locking tabs are tight
After a ‘home all’, I noticed that the Z tower motor wasn’t holding as strongly as the other two, so I swapped the position of the motor connector on the Rambo board with the X tower. When I swapped the connectors, both motors were holding OK and now I’ve swapped them back, all three motors hold as strongly as each other, so maybe a dodgy connection was the problem.
So ‘air pecking’ is the first problem. Sometimes, I can run the calibration routines OK, but when I come to print anything, the bed is obviously not level as shown on the attached photo.
In this print the first layer setting is 0.3mm, and the actual thickness of the priming loop is 0.26mm at its thickest.
I’m not entirely sure where to go next and any thoughts would be appreciated!
Thanks
Andy