Originally shared by Jim Wygralak
So, I recently installed a heated print bed and switched from PLA to ABS. Now all of my prints that are more than a few mm tall seem to take on an hourglass type shape in the first 10mm of height, or so.
Does that mean I have my print bed too hot? I’m running it around 100 C, according to my thermocouple equipped DMM.
And, how do I print tall skinny things? Can I still use a fan with ABS for that type of object?