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Analysis of first layer surface lines and gaps  

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Husflid
(@husflid)
Active Member
Analysis of first layer surface lines and gaps

 

I am printing parts where the bed-side surface quality is visually important.

By chance I have previously sometimes achieved a perfectly smooth surface with no lines or gaps, but I am struggling to achieve it consistently.

I use the smooth sheet, with the PEI surface in very good condition.

I believe I have:

- Perfect adhesion (always cleaning the bed with dish soap and hot water)

- Close to perfect bed levelling, using the nylock mod and mesh bed levelling process in Octoprint

- Dry PLA (New reel, and by now stored for more than 2 weeks in airtight box w 800g silica-gel and constant humidity below 20%)

- Optimized the live-Z to the best of my knowledge and advice picked up in this forum

- Slow first-layer speed of 20mm/sec

 

Still, I get these patterns in the first layer and hope to get some suggestions as to which parameters to tweek.

Attached photo of patterns (bed-side view):  As you will see, in some smaller areas close to perfect, but not consistently

I also attach the .3mf project file

 

Grateful for any advice

Ole

Posted : 13/06/2022 3:20 pm
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