I did calibrate the extruder to extrude exactly 50/100 mm and it is fine. I have replaced the old (prehistorical) extruder that was giving me the problem with a new one. The issue does not go away. It is severely under extruded. The nozzle is a 0.4 mm, if I extrude manually the extrusion is nice and clean but when printing its a mess. I have the following setting in Slic3:
- Layer height: 0,16
- First layer height: 0,16
- Filament diameter: 2,94
- Extruder temperature: 184°C
- Extrusion multiplier: 1
- Fill density: 15%
In Marlin I have the following setting for the extruder:
- Steps per unit: 1450 (I use micro steps)
- Default acceleration: 3000
- Default retract acceleration: 3000
- Default Ejerk: 5
How can I solve this problem?
This is a 20 mm cube I stopped after 15 layers!