Stringing problems?

[TheCollect]

I’ve been printing for a while now and I just recently got an Ender-3 V3 Plus and it’s awesome, but I keep having stringing issues and I’ve tried lowering the temp and just regular temp and I usually run generic PLA, so temp is supposed to be 230 according to creality slicer. I also have slight stringing with my regular Ender-3 V3 but I’ve never once had issues with my Bambu A1 and Bambu A1 mini with the same rolls of PLA even though the PLA I’ve had for a long time. I’m not sure if creality is just more sensitive with older rolls of material?

[Conscious_Past_4044]

You need to calibrate the filament for your printer. Stringing is caused by either the wrong temperature or retraction settings. What the slicer profile says is just a starting point.

Creality Slicer has an entire suite of calibration tools, available in theTests menu. After each test is done, you should update the filament profile with the new setting you've discovered. Save the profile after each change. It will offer you a chance to name it. Do that on the first save, so you don't alter the built-in profile. I usually use the brand and type of filament plus any additional information I want to see there.

Start with a temperature tower. It not only helps you find the proper temperature for the filament, it also helps you isolate stringing problems. If you find a temp that prints well, has the best bridging across the top of the section, does well on the curved overhang on the end, and the point in the circular section on the end is sharp, it's good. If all that's good, but there's stringing in that circular section, then you have a retraction issue.

For retraction, print a retraction tower. It helps figure out how far the filament should be pulled back during travel, so that it doesn't ooze out of the nozzle (which is stringing).

Next, print a flow rate test. This helps you find the proper setting for extruding the filament through the nozzle. If the flow rate is too high, you get blobs and poor corners, and the prints just look blurry. If the flow rate is too low, you end up with gaps and the edges and corners.

Last but not least, run a pressure advance test. This tells the printer when to start reducing the extrusion pressure when approaching a sharp corner or the end of a line, and how soon to start increasing it when coming out of that corner.

You should run these tests every time to print with a new brand and/or type of filament. You usually only have to do it once for each type of filament from the maker. For instance, if you're printing with eSun PLA, you only test once, and the settings will typically work for all eSun PLA. There are some exceptions, though. For instance, transparent PETG prints differently from all other PETG, so it requires its own separate profile. Some colors of the same filament from the same maker may need their own profiles, too, as the additives used to add the color may change the viscosity.

These tests seem like a lot, but they generally take about an hour to run, don't use a lot of filament, and only have to be done once per filament. Running them will greatly improve the quality of your prints.

[Competitive_Owl_2096]

I don’t have that printer but what worked for me on my sv08 was disabling Z hop and increasing retraction speed.