Print Quality issues (pictures)

[Alibert]

As far as I can see the pro dual is just a mechanically improved version of the 'old' dual (the one which I have). The mechanics and build space are the same, so it won't make a difference for the generated gcode.

Just use the Flashforge Creator Dual settings in Simplyfy3D and work from there, starting with the recommended settings of S3D. They are pretty good to start with, although tuning will always improve the results for nit-picking perfectionists like me.

Also, if you are printing via USB from a PC or laptop, try printing from the SD card instead. If communication is choppy or slow, the nozzle may be hovering/waiting at certain points which gives rise to blobbing as the extruder will ooze a bit if not retracted (which won't be as the slicer expects it to keep moving thus not needing retraction).

I NEVER print via PC/usb, always via SD card exactly for this reason (and to keep my PC's and laptops free for other work of course).

Also, slice it at 0.2mm or 0.25mm height instead of 0.12. This will improve printing speed and make it easier for the extrusion process. Even at 0.12mm you will be able to see the layers, only acetone vapor smoothing will make completely smooth ABS parts.

I generally tend to go 0.25-0.35 as layer height and just do acetone smoothing when needed.

[catalyst]

So how do I correct the over extrusion? My filament checks out to 1.75 exactly. Is the microcenter filament poor quality?

I am printing via sdcard.

[Sebastian Finke]

So how do I correct the over extrusion? My filament checks out to 1.75 exactly. Is the microcenter filament poor quality?

I am printing via sdcard.

Follow this link for extruder calibration. Easy enough to do but may take a few tries.