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x/y seems to be off, but I'm not hearing any skipped steps
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· x/y seems to be off, but I'm not hearing any skipped steps
Those holes are partly created by underextrusion which you can fix by printing a little hotter or a little slower (e.g. 50mm/sec .2mm layers 240C should be fine) or you can try tightening the screw on the feeder. My spring is compressed down to 11mm if that helps although I think that isn't helpful as the feeder design has changed a bit I think and it might not be the same spring.
ALSO I agree that you have some X/Y error. It's caused by "backlash" also known as "play". Backlash can be caused by loose belts or very high friction. In the case of loose belts, the head never moves as far as the stepper commands it in either X, Y or both. In the case of high friction, the head also never moves as far as commanded because even though the belt is tight the head doesn't move that last .2mm because static friction holds it in place.
So push the head around in X and Y. If you push with the side blocks you should be able to push the head with one finger on each side block. X and Y friction should be similar. Put some oil on all 6 of the rods in the gantry system. Any light oil will do. More likely though the problem is the belts are too loose. Start with the X and Y short belts. Push the motors down quite firmly. The longer belts are trickier to tighten. I recommend using the metal part of a clothes pin and using that to tighten the long belts. Google it. More info about the relationship of loose belts to print quality results here (posts #7 and #8 - look at picture in post 7 and read the text connected to that photo - you have to click on the photo first and then the phenomenon is explained better in post #8):
Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more.
S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
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gr5 2,167
Those holes are partly created by underextrusion which you can fix by printing a little hotter or a little slower (e.g. 50mm/sec .2mm layers 240C should be fine) or you can try tightening the screw on the feeder. My spring is compressed down to 11mm if that helps although I think that isn't helpful as the feeder design has changed a bit I think and it might not be the same spring.
ALSO I agree that you have some X/Y error. It's caused by "backlash" also known as "play". Backlash can be caused by loose belts or very high friction. In the case of loose belts, the head never moves as far as the stepper commands it in either X, Y or both. In the case of high friction, the head also never moves as far as commanded because even though the belt is tight the head doesn't move that last .2mm because static friction holds it in place.
So push the head around in X and Y. If you push with the side blocks you should be able to push the head with one finger on each side block. X and Y friction should be similar. Put some oil on all 6 of the rods in the gantry system. Any light oil will do. More likely though the problem is the belts are too loose. Start with the X and Y short belts. Push the motors down quite firmly. The longer belts are trickier to tighten. I recommend using the metal part of a clothes pin and using that to tighten the long belts. Google it. More info about the relationship of loose belts to print quality results here (posts #7 and #8 - look at picture in post 7 and read the text connected to that photo - you have to click on the photo first and then the phenomenon is explained better in post #8):
http://umforum.ultimaker.com/index.php?/topic/1872-some-calibration-photographs/?p=14396
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