Issue: I'm having a problem with some blobbing and gaps consistently in the same areas. The left edge is always good, the right edge is very bad (especially around the corner) and the front and back edges get worse the closer they are to the right (reference pictures). Interestingly the first few layers seem to be slightly better. Looking at the top of the prints to me it seems as if excess filament is being pushed by the nozzle towards the right edge.
Attempt to solve: I thought straight away that the bed wasn't level but I levelled the bed between each of the three prints (pictured below) including some under and over levelling to the right side of the bed to see if it made any difference, conclusion; no difference.
Update after calibration: I've calibrated the extruder by printing 100 mm of filament, the maths states that I'm under extruding by 2.81 %. However the 20 mm printed cubes I've been printing are between 0.7-1.3 mm too big!
- Printer: Wanhao Duplicator 4
- Firmware: Sailfish v7.7
- Slicer: Simplify3D
- Material: ABS from Rigid.ink
- Material Thickness: 1.75 mm
- Infill: 100 % (for calibration cube only)
- Nozzle Diameter: 0.4 mm
- Extrusion Width: 0.4 mm
- Layer Height: 0.2 mm
- Bed Temperature: 90 °C
- Extruder Temperature: 235 °C
- Default Printing Speed: 60 mm/s
Has anyone seen this issue before and has any suggestions for settings to start tweaking?