PSA: Sainsmart TPU Inconsistent Filament Size
Posted Dec 31, 2018, 2:21 AM UTC
26
Went to check on my print and found nothing was coming out of the extruder... The filament size towards the middle of the spool got so big it would no longer fit in my PTFE tubing inside my E3D Titan. Amazon is replacing it, but it sort of threw me for a loop untill I figured out what was up.
2
Weird, ive used quite a few of the 1.75 spools in black and orange. Have not ran across that yet.
2
SainSmart Black Flexible TPU 3D Printing Filament?
2
Hmmm, maybe you have bad roll? I have used several different colors of Sainsmart TPU with success, have not run into diameter issues yet with any of the three rolls I have used.
1
Are you meant to use the tip of the calipers?
You are, but it shouldn't be enough of an issue to make a 0.25mm difference. Something is definitely wrong with that filament.
On good calibers the entire length of the jaw should be flat and can be used for measurements