I performed several calibrations on my ender 3 v3 if after several prints, because suddenly the first layer began to no longer adhere very well. every time this happens, I wash the plate with dishwasher degreaser, to make sure it’s clean. what leaves me perplexed is the fact that the values detected by the z offset probe are always very distant. once it gives me a value around -2.50 and the next time -1.60. I corrected the leveling of the plate with a sheet of paper manually in some points, and I would like to understand if it is possible to do the same with the z offset. when I set the print head to the home position and manually change the z offset value, it almost seems as if the z axis does not move, and I have the perception of not being able to do the same job with the sheet of paper under the nozzle. Do you have any tips for optimizing the z offset on this printer? A thousand thanks
You can adjust the Z offset manually in the menu Prepare of the display.
Usually after I level manually the bed I go and print a bed level STL(the one that are concentric squares) during the first to layers I adjust the Z offset to get the best result.
Also try to see if in your final Gcode yo have the bed mesh enable after the home option it is:M420 S1
So the printer can use the mesh of your bed and give a better result.
And finally you will get better adhesion if you buy a PEI sheet or a Glass bed try what fits better for you.
the video doesn’t answer my question. you can see the z offset changing manually but without a precise criterion. I can’t make endless test prints in the hope of finding the correct value…in ender 3, you can adjust the z offset with a sheet of paper. here it seems that the height of the extruder does not move…
I had the same problem. The z offset has no effect when the printer is idle. I had to print a bunch of single layer test prints to dial mine in. The auto level program set the z offset too low, and it gouged the bed!
Did you ever have any luck? I’m trying to troubleshoot issues with my prints that id attributed to the leveling but that I now think may be my z offset. I tinkered a bit last night but had to go on travel for a week so now I get to spend the next 7 days pondering.
I tried to get it level by using springs meant for an Ender 3 and the auto leveling feature and it helped but I still can’t get all the corners below 0.25 mm. Here are some of the results.
You worry too much, as long as the runout is less than 2mm the autolevel will cope. My V3SE has about 1.3mm runout and prints just fine just got to get the z-offset tuned in. Here is a full bed of TPU covers with said runout.
