I have the Ender-3 V2. After a few layers, the print deteriorates. Any idea what I should adjust to avoid the issue?
I set nozzle temperature to 220 degrees C.
Here’s a side view, with on the right the last layers collapsing, on the left the first layers looking ok.
Top view:
Bottom view:
Show us your extruder / hot end set up. I saw one incident where the higher the Z-axis went, the more the filament was in a bind, making the extruder slip. As third owner, my V2 came setup to feed filament in from the left, straightish into the extruder.
Here’s the picture of the printer, if it helps.
It turns out previous print also had issues on the first few layers.
After reducing printing speed, it does not show as many blobs anymore. Printing curves at high speed causes the filament to be ejected outwards, per centrifugal acceleration.
Here are the changes I made in the “0.20 mm Standard @Creality Ender3V2” preset in OrcaSlicer:
Here’s the result, which is almost clean. Print is upside down
If you’re trying to run at a good pace (I run fairly slow), the little extruder is trying to pull filament from overhead at an angle and push it through the long Bowden tube to the hot end. A front shot of the machine may help, also. It may help to know what filament type, nozzle size, hot end temp, speed, and layer thickness you are trying to run.
I have a print running, but a pic of my set up. The granddaughter designed Mr. Print’s head. I’m running filament out of the hot box for this print (normally the empty spool is not there. Empty spool shows the normal feed position). The first owner of my V2 moved the filament to the left and printed cable trays for the x,y,z cables. The y-axis cables are not attached to the Bowden tube. My Bowden tube is long enough to reach the y-axis max travel, but not much extra length. The longer the Bowden tube, the more resistance the extruder sees pushing and pulling the filament to and from the hot end.
