I've been having tremendously bad print quality lately and have been doing everything I can think of to fix it, none of it is helping. I tried printing a Temp Tower for the first time and since I was paying close attention to the temperature, I noticed that the printer is making some fairly wild temperature swings. My target temp is 200C and it's swinging between 192C and 207C back and forth, back and forth.
That is a video of test printing a cube. Took about 30 mins, video sped up 8x so you can watch the temp changes. It takes about 4 seconds in the video to swing from 192 to 207 so that was about 32 seconds in real time.
- Monoprice Maker Select Plus
- 1.75mm PLA (Hatchbox), bought a brand new box
- Cura 5.2.1
While trying to address the print quality, here are the things I've done before noticing the temperature fluctuations:
- replaced the nozzle
- replaced the bowden tube
- leveled the bed
- calibrated esteps
- tried brand new box of filament in case other filament absorbed moisture
- gently tightened the thermistor screw just so that it was snug, but not overly tight
Here's the thermistor connection on the hotend:
Any suggestions are welcome.