English
Forums
English forum
Original Prusa i3 MK3 & MK3S & MK3S+
How do I print this? (Printing help)
Inconsistent first layer
 
Notifications
Clear all

Inconsistent first layer  

    Last Post
  RSS
abazuu
 abazuu
(@abazuu)
New Member
Inconsistent first layer

Hello,

 

Ive assembled my mk3s kit and i really struggle with first layer. It seems that a part of print is OK and a part of print is not ok. Ive tried so many things now and nothing helps. On print 50x30 mm i get some different patterns and i dont know how to get rid of the.. it was way worse with the silver PLA filament which came with the kit. Today i swapped to white PLA filament and it has really great bottom right corner and aome spots on the print, but also have some patterns on it. Printing at 205/60 and 215/60 for silver PLA. Ive tried changing flow, em, first layer mm, also fill angle (no picture attached) but nothin helped.

 

I think my live z is almost lowest possible. But what bothers me its not consistent...

 

Check picture attached. 

Posted : 11/04/2020 9:41 pm
bobstro
 bobstro
(@bobstro)
Illustrious Member
RE: Inconsistent first layer

 

You're very close. Be sure you've enable 7x7 mesh bed leveling in the setup menu. It gives more granular leveling results.

If you have not already done so, try using Jeff Jordan's "Life Adjust" procedure for calibrating your Live-Z setting. It is much easier to use and understand than the on-board routine and much easier to make mid-print adjustments accurately with. In general, start high (less negative) and work lower (more negative) in large increments (e.g. 0.1mm) until the filament starts to stick on its own. When you've got your Live-Z setting adjusted properly, you should be able to gently rub the extruded lines on the PEI surface without dislodging them.  Then start lowering (more negative) the level until there are no gaps between layers. You should not be able to peel the lines apart after printing, but the top should be regular. 
My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 11/04/2020 10:41 pm
abazuu
 abazuu
(@abazuu)
New Member
Topic starter answered:
RE: Inconsistent first layer

@bobstro

 

Hi, thanks for the reply. I'll try once again with live Z, 
but this opens new questions. If Z would be correct/incorrect, 
wouldnt whole printed first layer be nice or ugly? I cant connect how 
live Z is connected with just few ugly spots on first layer? 

7x7 mesh is enabled btw

 

Posted : 12/04/2020 6:44 am
abazuu
 abazuu
(@abazuu)
New Member
Topic starter answered:
RE: Inconsistent first layer

Ok, why is quoting so wierd on this forums?

Posted : 12/04/2020 6:45 am
  All forum topics
  Previous Topic
Next Topic  
Share: