Hello!
I have run into a strange situation and decided to post here to get some ideas and see if anyone's got into a similar problem.
I've been using an original Prusa i3 MK2 for the past year without problems, but today I have started to notice the extruder extruding big bumpy blobs in some of my prints.
At first I thought this was a one off situation, so I decide to print the same model using the same settings. But there it happened again! In the exact same location, the extruder extruded a lump that is taller than the layer's height.
So I thought there was a problem with the model, so I tried another model - but it happened again. Then I printed that same model, and it had the same problem in the exact spot again.
Here is a picture of the problem (also attached below):
Zoomed in:
I also captured a video of the moment this blob was extruded:
https://www.youtube.com/watch?v=BE4yp6B3Ad0
I've checked for under/over extrusion (measured the amount extruded after sending a command to extract a specific amount, then dividing it out and got an extrusion multiplier of 1.06). And that doesn't seem to be a problem. Also, both my X and Y belts seem to be tight to spec (makes a ping sound).
I'm out of ideas! Anyone else here has encountered this before and can point me in the right direction?
Thanks for reading, and any help will be greatly appreciated!
Edited 1 time(s). Last edit at 05/01/2018 02:54PM by hipsterkevster.