Um… Input?
Hard to tell much from this photo. Not enough contrast with the white plastic. However, the brown areas (especially in the upper right corner) looks really suspicious.
Did plastic not adhere to the bed and get overheated on the extruder, causing it to finally let go and cause skipping?
Honestly, gotta have a little more detail on this. @Jason_Barnett is certainly on the right track though.
No clue, the place I print at closed halfway through and I had to leave it. It was perfect when I left.
Well… Perfect-ish.
Try posting a few more pictures from different angles and possibly of your printer as well. Then we might be able to spot something to point you in the right direction.
Belt tension could be an issue aa well. Check the robo3d forum, they have an FAQ. Don’t have the link handy right now.
From the last photo of this print I saw a while ago I’m assuming it’s a shift on your y axis and probably a small shift on your x axis to the right. You may have your steppers at to high of a current and thus over heating them. I have this issue every now and then on long or complex prints ware my y axis moves a lot. (Bed is to heavy)
Also belt tension, over extrusion causing ridges that your extruder is catching on etc.
I’d hazard to bet though that it’s an over heating issue.
I see here the layer shifting accor ding to initial good print phase. It can have the Following Reasons: 1 over heating of the steppe driver. 2 poorly mechanics of the machine. 3 over heating of the motor. Try, first a separate cooling for the stepper driver (8 cm pc fan, for example). Alternatively, You can decrease the acceleration (through firmware)
Leyer shift = bad belt tension. And RoBo 3D is known to have this issue when it ships from the factory - mine also had this problem initially. Please go through RoBo 3D User FAQ - just google it.
Here it is - http://melodybliss.org/robo3d/
Ty to those who provided helpful info, unfortunately the printer I had been working on had several other people take interest in it. These people have their own calibrations they make every time they hop on and it’s getting confusing keeping up. It’s like trying to paint a picture of a rubix cube and having someone come and rearrange the colors whenever you look away. Or worse, you showing up and finding someone is already using the only canvas…
So basically I’m holding off on my calibration lessons until I can get my own in May.