QUESTION First layer cleanup

[kfsone 5]

Ultimaker 3, latest firmware,

Cura 4.11,

.4mm nozzle,

Ultimaker Grey ABS, 225c / 65c,

Layer Height .3, Initial .27, width: .35 or .4,

Initial layer width: 100, 105, 110 and 120%

Walls 3,

Bottom layers 3,

 

Printing at 220c, I can't seem to get my bottom surface to print smoothly, but I'm not sure what the result is telling me. I'm getting great adhesion, and the top layer looks exactly the same when I don't iron it.

 

How can I make it look more like the top surface?

 

[geert_2 558]

Maybe adjust your nozzle a little bit closer to the build-plate? Or make the first layer thinner, for example 0.2mm instead of 0.3mm? And print the first layer slow enough, so the melt has time to spread well?

 

But it doesn't look too bad to me.

 

Try settings on a small thin testprint, so you don't waste too much time and material.

 

My first layers usually look like below: the grey is for standard PLA prints (first layer = 0.2mm, 20mm/s; all other layers 0.1mm and 50mm/s), the green is for tiny PET prints (first layer 0.1mm, 20mm/s; all other layers 0.06mm, 30mm/s). I have the nozzle closer to the bed than standard, so the first layer is squeezed well into the glass.

 

 

 

Edited September 20, 2021 by geert_2

[JTMD 20]

print on a raft