the main part of the print was supposed to take 7 minutes, i walked out to see my printer trying its hardest to shit as much filament into one spot as it could as my extruder gears were screaming for help, what the hell is going on

Replaced the nozzle and the tube inside the printer head. Temperatures apear to be stable.... I have tried some stuff and I'm all out of ideas.

Been trying to figure out how to get my XYZ calibration cubes to 20mm x 20mm x 20mm, but no idea what to try next. Currently, X and Y dimensions are 9-11mm short and Z has ~10mm extra.

My setup is an Ender 3 V2, dual belt Z axis mod, micro swiss revo ng, stock glass bed, silicone spacers, CR touch, and some other minor upgrades.

I have calibrated e steps, z offset, flow rate, PA, retraction, temperature, and also used a digital precision calliper to measure that a 150mm move actually moves that much on X and Y axis. Using orca slicer with inner/outer/inner wall order.

Printing at stock speeds and tried with both PLA+ (220°C hotend, 60°C bed) and PETG (250° hotend, 75°C bed).

What would be the next things to check here?

I have recently bought my first 3d printer, a used Creality Ender 3 Pro, and i'm currently in the process of figuring out the best calibration for it (temperatures, motor steps, bed level, screw tightness, all that).

I printed 2 calibration cats in different scales to adjust the axis motor steps, and noticed some vertical bumps in the models. The most evident one spams the the back of the model from top to bottom in both cats (see pictures) although it's way more evident in the bigger print, then there are some "flaps" on the edges of the prints that i unfortunately couldn't get a focused picture of (refer to poorly drawn schematic)

The spot where the big bump is aligns with where the printer begins and finishes printing the layers. I used Ultimaker Cura to do the slicing and checked this there.

Both prints where made with PLA, with 195°C hot end and 60°C bed, 50mm/s print speed, nozzle retraction and z-hop enabled.

Why does this happen, what problems could it indicate and how can i fix it? Loose belts or screws maybe?

Poorly drawn schemaric of felines

Bump on big cat

Really-hard-to-focus bump on small cat

What could cause these lines that are parallel to the layers? They are approx 0.5mm wide each (print was 0.05mm layer height).

I tried tweaking some settings like: Lowering the temperature And 190 seems to give the best results but stil give strings. I also tried increasing the restraction lengs by 1 mm but this dit not seem to chsnge a thing, neither did increasing the speed by 5 do anything.

Im using sunlu pla+ and a prusa mk3s+

Hello guys I have only 200 hours of prints in my FlashForgeM5 pro,

Last 3 prints I tried are completely garbage. Not holding anything, weird and bad last layers. I already successful tried to print this model few times before . First time seeing it, tried to recalibrate / switch nozzle / filament Really doesn't know what is the issue. Please advice. Thanks

https://preview.redd.it/xlcewvwjkcyd1.png?width=1494&format=png&auto=webp&s=c9df77d6a43cbe35238476eb2a604bf4a1ab275a

I am getting this seem on my prints as gap infill which also shows on the surface. I am not sure if it has been there all the time or if I messed up some settings. Any tips how to fix this in my slicer? Same results on Bambu Studio and Orca Slicer

I thought it was just because new petg fillamet that was being weird and and stuff (ignore the crack everything went wrong with this cursed print) but it's happening with my other fillamet that otherwise has flawless printing, especially if it's a complicated part.

it looks like filament is being built up on the nozzle and is just let go on some random part of the print, how do I fix this? (Lower temperatures doesn't seem to work and the hotend isn't leaking)

Bambu pla stock settings on p1s

My sprite extrude is really bad and makes prints like this