This is my first time using Polycast filament, and it prints with PLA settings. It works great for the first 90% then barely extrudes anything at the very end no matter what I print. Sorry it's transparent so it's hard to see.
this post was submitted on 27 Jun 2023
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It would be easier if you gave us more info about your setup like what printer you have, print temp, speed, retraction settings etc
First step for every new fillament is tuning temp and flow. I found polymaker policast on google. It says 190-220 °C print temp, and there are also retraction settings. Following recommendations is always a good start and to be more "safe" from clogs start with higher temp and lower retraction distance. It will cause more stringing and oozing, but you can easily tune that later in small steps.
From the picture no one can tell what the problem is exactly. Assuming your can print other matterials I guess its a clog but it can be many things like extruder grinding or fillament snaped or faulty wire etc.