Fairly suddenly I've started to have layer problems with my RoMax V2. Here are some of the successful prints from the first week I had the printer where things worked great and I had (minimal) problems. The whitish cube and the orange peg board were printed out really well and had no problems, as did pretty much all other prints I had.
However, recently all my prints are coming out like this one: Some prints will start out fine but after a few layers will start to slant and then eventually the layers get all janky and messed up.
I've only had the printer for about 3 weeks and this is my first printer. My original fear was that I had damaged the nozzle on my first multi part print because it sounded like it was dragging across the previous layer as it moved across the print surface (which seemed weird as I do have z lift of 0.3 mm enabled). When that print finished I noticed that the walls of the print weren't straight and seemed to wiggle up the side. I figured it had to do with cooling as it was one of my first few prints with ABS and the piece that was most messed up was in the front and would have been most effected by the draft caused by my AC. But now all my prints since then look like the black cube and have layers that are shifted all around. NOTE: looking at the print from the front of the printer, the layers shift to the right along the X axis and back on the Y axis, BUT its not at the same rate. Some layers are nice and straight for the Y axis up to a certain point (about 1cm off the print surface) before beginning to shift. The X axis shift is very mild until it gets to the same point (about 1cm) then it gets drastic and shifts around. The Z axis seems to be unaffected and is the same as it was when it printed properly.
I've calibrated my z height as per the SeeMeCNC manual, re-ran the PID autotune for hot end and bed, switched to a different outlet (thinking it might have been an issue with pull on the power), and tried 3 different filaments (ABS and 2 colors of PLA that I have).
I can't seem to fix the issue, anyone ever run into this before or have any suggestions? I think my next step is to disconnect the cheapskates and check the belts for any missing teeth or worn out areas and also recheck how square the towers are to the heated bed.
Extruder temp: 210 (with the PLA) and 228 (with ABS)
Bed Temp: 70
layer height: 0.2mm (first layer 0.3mm)
Layer fan: tried with it on and off
print speed: tried at 30, 40, and 50 mm/s
Infill: GRID @ 0.25 fill density (starting angle of 45)
Z lift: 0.3 mm @ 110 mm/s
length on move: 6.5 mm
Using MatterControl and printing via USB