Ultimaker makes things pretty easy for you. For simple projects just use Cura 2, with their own Ultimaker PLA if possible, and you will have flawless results. Talking from experience Doing it this way saves money and time in the long run!
From the pics attached looks like your printer is fine, so the issue is either in the settings or material quality.
Hey guys, thanks for your answers! I had another go last night na d guess what, I used Cura and the original Ultimaker PLA that came with it, ditching the “Das Filament” PLA I was using before. They state temperatures from 205-230° on their website. Anyway I was going with 200° degrees with the Ultimaker PLA and I am a lot more pleased with the results.
Also I agree with the others, try to reduce the temperature of the filament. Too high temp means too liquid PLA that will form blobs/overextrusion everywhere.
Also try to have same speed for printing infill, outer layer and inner layer. The closer they are they better is the result you will get (I normally have them all set at 40 mm/sec). At this point you can start lowering the temperature of the filament (steps of 5 degrees) until you are satisfied with the results.
I use S3D with my UM2+ and it gives much better results than Cura, when all the settings are dialed in right. It looks like that’s probably UM silver PLA, I suggest going to 210c on the temperature, there is some pretty clear overtemp. signs on the print. Try slowing the print speed down a little and experiment with switching off wipe for instance. Last time I printed a Marvin, I used 3,3,3 layers and 15% infill (fast honeycomb)- so a bit less than you, but that’s just to save filament and time, really. Furthermore, just out of habit I always use the heated bed at 60 for PLA, as well as gluestick. This isn’t something that this will make a difference to print quality here, but in case you were looking for other hints and tips. I’ve found 50 to be a bit low and especially larger prints will want both the heat and glue, at least on my machine. To be honest, those are not bad looking prints, and with a little tweaking, you’ll get those settings dialed in just right.