What’s wrong with this? It’s a freshly built geeetech g2s pro… Is it over extrusion? At a loss
It seems so
What should I dial down the extrusion multiplier to?
try 10% and see what happens? You might be doing lots of test pieces. Also: measure your filament.
The filament is xyz filament from my other printer. Put repetier on the davinci and took the rolls outta the cartridges so i could use it with both printers. So try 90%?
Moisture perhaps?
I second Mark… Check the calibration on your extruder first, then start tinkering with the percentages…
What’s happening here happens to everyone, your not at a loss, your at the start.
When I built my first 3D printer I had under-extrusion and air printing nightmares forcing me to upgrade the extruder and hotend. What I did then was to put a pen mark on the filament and extrude 100mm and measure how far the filament had moved. This helped me to adjust the settings until they were perfect. Also, I’ve had prints that look that bad because I forgot to adjust the nozzle diameter.
@Duncan_Gunn I think you meant adjust nozzle size in your slicer
So would I just tinker with the extrusion multiplier? How would I calibrate the extruders? What would I change?
Dial in you esteps first with air extrudes measuring the actual vs theoretical distance traveled. The use a single wall cube to dial in extrusion multiplier so that resulting print width matches the intended slicer extrusion width. Then just mark extrusion multiplier to use on each spool. The reason I do this is every plastic will exhibit varying die swell, so filament width just adds another variable. I don’t even bother measuring filament anymore. I just leave the slicer at theoretical 1.75mm then dial in the width of actual extrudes. Much easier and surface finish and top infill will be perfect once you do.
So the easiest way of doing this is with the extrusion multiplier? Pla prints ok through the extruders
@Abc_Def Watch the video. Tom explains it well
@Keith_Applegarth I will. I believe it’s just this filament since it is pretty crappy. It has printed other filament perfectly
@Abc_Def It may be the filament, but without checking the calibration on your extruder, you are never going to know for sure.
Im printing with another filament now. This was the first filament that printed like that. If this filament does the same I will check out calibrating. If it works I will try other filaments also
@Daniel_Fielding I did. I just didn’t word it very well. Oh and I can adjust the nozzle diameter. I have an e3d v6 hotend with interchangeable nozzles, a great drill press and a good selection of very fine drill bits etc. I started out with a Chinese clone j-head 
Did anyone at all get what I meant about the nozzle size. I did not mean using it as a fudge factor but instead making sure the slicer knows it’s real diameter. I know Slic3r assumes a given size upon installation rather than demanding you tell it.