As you can see, the bottom layer is quite uneven and some of the filament is higher than a layer should be. It looks to me like there was too much filament when filling areas. Though, when I only print outlines, this is no problem. Don´t have any problems with sticking to the heatbead with Kapton. All the following layers print fine.
I´m using the default settings from Vellemann. “Layer height” is 0.3 mm as is “First layer height”. Using PLA 3 mm.
As you can see, the bottom layer is quite uneven and some of the filament is higher than a layer should be. It looks to me like there was too much filament when filling areas. Though, when I only print outlines, this is no problem. Don´t have any problems with sticking to the heatbead with Kapton. All the following layers print fine.
I´m using the default settings from Vellemann. “Layer height” is 0.3 mm as is “First layer height”. Using PLA 3 mm.
What might be causing this?
Lars[/quote]
If you used slic3r try reducing the flow rate for infill.
The settings are:
Default extrusion width: 100 %
First layer: 100 %
Perimeters: 170 %
Infill: 180 %
Solid infill: 0
Top solid infill: 0
Support material: 0
What is the difference between “infill” and “solid infill”?
If you take a simple cube as an example, “infill” means the honeycomb structure and “solid infill” the bottom and top layers?
[quote=“larsen”]The settings are:
Default extrusion width: 100 %
First layer: 100 %
Perimeters: 170 %
Infill: 180 %
Solid infill: 0
Top solid infill: 0
Support material: 0
What is the difference between “infill” and “solid infill”?
If you take a simple cube as an example, “infill” means the honeycomb structure and “solid infill” the bottom and top layers?[/quote]
Solid infill is completely filled layers, whereas infil is for partly filled layers (grid or honeyomb).
If you set the parameters to 0 slic3r calculates them on it’s own.
So, using 0 the calculated value might be different from 100%?
Can I check this in the g-code?[/quote]
Yes, that can be.
It is hardly to do checking this in g-code cause the slicer will recalculate it to extrusion length.
Just set it to 100% first and then tune it from there.
Ok, seems like it is caused by the nozzle being to low as different settings for “solid infill” and “first layer” didn´t make a difference. There has been slightly more space before, afair.
As the hotend is leaking, it is going to be tightened a little bit and afterwards I will check the spacing again.
[quote=“larsen”]Ok, seems like it is caused by the nozzle being to low as different settings for “solid infill” and “first layer” didn´t make a difference. There has been slightly more space before, afair.
As the hotend is leaking, it is going to be tightened a little bit and afterwards I will check the spacing again.
As I have written the last post, the nozzle has cooled down and now I can fit a sheet of paper under it again. Apparently it is better to fit it to two sheets of paper when cold.
I have had a similar phenomenon viewtopic.php?f=51&t=12743
I my case it happen also after more layers. The problem was solved by increasing the extruder multiplied from 1.15 to 1.20 (change only with small steps). Sometimes it happens at the first layer. In my case it was caused because the initial hight was too much. It happens not everywhere bacause the flat bed is not perfect flat. If it is related to the height can be tested by pushing slightly at the beam which holds the extruder during printing.
