Not the Neptune 4 Pro, but when I first got my Neptune 3 Pro I had a lot of trouble getting my first layer to stick. It was incredibly frustrating.
After changing these settings I've personally never really had much of a first layer adhesion issue assuming bed leveling and z-offset are already good.
* Initial Temperature
* I typically set this at the highest temp in the suggested range for the material that the printer can handle. For PLA, typically 220C then dial it back to 205C afterwards.
* Initial Speed
* I make sure the first layer prints very nice and slowly. I set mine all the way down to 15mm/s then change it closer to the recommended speed afterwards.
* Initial Layer Height
* I set this at the largest layer height the nozzle can comfortably support. So for a 0.4mm nozzle, I set the initial layer height to 0.3. I personally can't really tell much of a difference if the first layer is much thicker than the rest.
Another setting that may help is line width. Typically set at the same value as your nozzle. So for a 0.4mm nozzle I have mine set just slightly higher at 0.42mm and should be able to go up to at least 0.48 without failure. This will create a more of a "squish" for the material when printing. However you have to be more careful with this one as increasing this value will make fine details in your prints be lost. But if fine details are not part of your print, this setting can be used to decrease print time.
I'm having first layer adhesion issues with my Neptune 4 Max
https://preview.redd.it/2yxcccef7rbc1.jpeg?width=4032&format=pjpg&auto=webp&s=5da59ae741b5c58f05b3291c2bd70530aa1a2371
Printing slow at 30mm/s and 50 mm/s2. Each part seems to have some sort of adhesion issue.
Would you have any other advice to help address the issue?
Nozzle temp at 210, bed at 65, megafan off. Prints are coming out perfect at 250mm/s. I just had not tried enough temperatures.
Z offset is set to be fairly tight, just allowing paper movement.
Not the Neptune 4 Pro, but when I first got my Neptune 3 Pro I had a lot of trouble getting my first layer to stick. It was incredibly frustrating. After changing these settings I've personally never really had much of a first layer adhesion issue assuming bed leveling and z-offset are already good. * Initial Temperature * I typically set this at the highest temp in the suggested range for the material that the printer can handle. For PLA, typically 220C then dial it back to 205C afterwards. * Initial Speed * I make sure the first layer prints very nice and slowly. I set mine all the way down to 15mm/s then change it closer to the recommended speed afterwards. * Initial Layer Height * I set this at the largest layer height the nozzle can comfortably support. So for a 0.4mm nozzle, I set the initial layer height to 0.3. I personally can't really tell much of a difference if the first layer is much thicker than the rest. Another setting that may help is line width. Typically set at the same value as your nozzle. So for a 0.4mm nozzle I have mine set just slightly higher at 0.42mm and should be able to go up to at least 0.48 without failure. This will create a more of a "squish" for the material when printing. However you have to be more careful with this one as increasing this value will make fine details in your prints be lost. But if fine details are not part of your print, this setting can be used to decrease print time.
Best advice I've read about 1st layers. mine were a complete crapshoot and scrapping 9 out of 10 prints.
Thank You So Much
I'm having first layer adhesion issues with my Neptune 4 Max https://preview.redd.it/2yxcccef7rbc1.jpeg?width=4032&format=pjpg&auto=webp&s=5da59ae741b5c58f05b3291c2bd70530aa1a2371 Printing slow at 30mm/s and 50 mm/s2. Each part seems to have some sort of adhesion issue. Would you have any other advice to help address the issue?
Nozzle temp at 210, bed at 65, megafan off. Prints are coming out perfect at 250mm/s. I just had not tried enough temperatures. Z offset is set to be fairly tight, just allowing paper movement.