Bed adhesion issues

[abstract ravine]

My Ender 3 v2 neo is having issues with build plate adhesion on the first layer. This is causing plastic to build up in areas where it shouldn't, causing failed prints.

What I have done.

• Re-level printer
• Clean Build plate
• Replace build plate

Settings
75% build speed
70c build plate temp
200c nozzle temp
printing with PLA

[blazing shore]

AI Help

It sounds like you've taken some good troubleshooting steps already. In addition to what you've done, here are a few more tips to improve build plate adhesion on the first layer:

1. Bed Leveling: Double-check that your nozzle distance is uniform across the entire build plate. You can use a sheet of paper to help gauge the proper distance.

2. Initial Layer Height: Make sure your initial layer height is set appropriately. It should be closer to the bed than the following layers for better adhesion.

3. Bed Temperature: Consider raising the bed temperature to around 60-70°C for PLA. A slightly higher temperature can help with adhesion.

4. Bed Surface Preparation: Using adhesion aids like glue stick, hairspray, or specialized bed adhesion sheets can sometimes help with first layer adhesion.

5. Enclosure: If you're printing in a drafty or cold environment, consider enclosing the printer to maintain a more stable temperature.

6. Print Speed: You mentioned printing at 75% speed. You c...

WARNING: This response is AI generated and may contain errors.

The first layer is quite literally the foundation of a successful print. These are some of the things to keep in mind:

• Wash your print surface with dish soap and water, refer to ?bedcleaning .
• Ensure your printing temperatures are appropriate. For PLA, the ideal bed temperature is 55°C-60°C. If the lines appear to come out "gummy" and forms clumps, raising the nozzle temperature may help. Calibrate your nozzle temperature by printing a temperature tower. Refer also to ?platemps .
• Relevel your bed and ensure your nozzle distance is equally spaced at each corner, refer to ?paperlevel . If your printer is equipped with a bed meshing probe such as a BLTouch or CRTouch, make sure your Z-offset positions the nozzle close enough to the bed, refer to ?z-offset for additional information. If your printer has automatic Z-offset calibration, make sure the nozzle is clean while the calibration runs.

You can confirm that your leveling and Z-offset is correct by observing your first layer extrusion by printing a full layer test: Printables, Thingiverse Refer to ?leveling for help with the interpretation of the results.

• Ensure the nozzle is not colliding with the print. This usually presents itself as loud noises and layer shifting. Some causes may include overextrusion, insufficient cooling, mechanical Z axis issues, or insufficient Z hop
• For warp-prone materials such as ABS, Nylon, Polypropylene and others an enclosure is recommended, ensure ambient temperatures are high enough (40°C+) and stable. Consider using a specialized bed adhesive.

Leveling Your Printer
Here is a handy infographic that will help with levelling your printer.

?leveling requested by: bdx.#0

[abstract ravine]

Thanks

[abstract ravine]

Video of what I mean

[stiff lagoon]

I don't have the exact same printer as you (I'm running an ender 3 pro with bltouch installed) but I was getting a similar thing, I found changing the z offset slightly or going into tune during a print and lowering the z axis just slightly helped a lot
Make sure you bed is level too (either with a probe or the good old paper trick)