# Print Lines Aren't Joining Together

I have encountered a problem where the print lines are not joining together, when I remove it from the plate it turns into a stringy mess.

I am not sure what the problem is because I print out models that have successfully come out with properly joined lines previously, but now are failing. I am using the same nozzle and material that I have been using in past prints.

I am using the Ender 3 with Bltouch running Marlin 1.1.9. The settings I use are as follows:

• Material - PLA
• Nozzle - 210
• Bed - 60
• Speed - 60
• First Layer Speed - 30
• Line Width - 0.4

EDIT

I have included some higher quality photos as requested, between the original post and this edit I added an aluminium Bowden extruder and a new nozzle but the problem still persists. I have also re-tensioned the x-axis belt and re-flashed Marlin to the printer in case that had somehow corrupted. I have also tried increasing the flow rate in Cura but I had to increase to 130% for there to be any noticeable effect (i was able to print a slightly better model but it still has zero integrity). I also tried adjusting the z-axis height tuning but within a few steps up or down it would go from too close to the bed with not enough material coming out, to a decent height but with the original problem. I also cleaned out the hot end.

• have you tried different temperatures? have you played with the extrusion multiplier? – Trish Nov 30 '18 at 7:35
• I had similar problem when my nozzle was partially blocked and as a result there was not enough of filament. – smajli Nov 30 '18 at 7:58
• I had the same issue, solved it by turning up the voltage on the stepper motor driver – Eddie Printing Nov 12 '19 at 18:16

As far as can be seen from the second picture, the filament is not properly squished to the build plate, so I expect that you gain from setting a smaller nozzle to sensor trigger point distance. This can be done with the M851 command.