Review on 🌱 PRILINE PLA 1" - Enhanced PLA Biodegradable Filament by Jim Bethea

Trying not to be too harsh, but it's difficult. The print quality of this filament _may_ be "decent" _if_ all the stars match, your slicing is perfect, and you have a machine that costs thousands of dollars; otherwise stay away. Too many problems. 1) This filament "acts" like ABS, not PLA. It is very prone to shrinking, warping and peeling off an unheated print bed. Sometimes the first layer can warp so much that the hot end bounces off the print when it starts the second layer. I have three copies of a part I made for a drone. Two with my normal thread, one in this thread. The first two were printed at 185°C on a cold glass table. There was no shrinking or moving off the bed, and both pieces are exactly the same size. The same part printed on this filament _fails_ at 185°C, 195°C and 200°C. I finally managed to print "OK" at 205C, but it still came out of the bed on one side (even with the weighted edge), the bottom of the part is warped and is about 95% the size the other two parts. If I make it later I'll post pictures of it. 2) The thread diameter variability is assumed to be 0.003 mm. This _might_ be true (I don't have digital calipers to test this), filament is VERY variable. It's "wavy" and has lots of curves; this makes it VERY difficult to extrude. The kinks in the thread touch the Bowden cable in many places, which acts as a "brake". It is very difficult for a single extruder to bring this to a hot end. I have to constantly manually feed the filament to get it to start flowing again. Some of the kinks are so bad they don't fit in the Bowden tube. More than once I had to cut and rethread the thread. So I don't have a big extruder, but I don't need one - it's PLA (and I've never needed one with the 3D Warhorse filament I usually buy). he jumps everywhere. The twist was strong enough to pull my filament spool holder far enough that the extruder could no longer pull it around the corner. I should note that I have a homemade I3-style "rep-crowbar" machine. It has a basic J-Head hot end and no heated platform. Other than that, the motors are great (not the cheap all black ones) and the axes are aligned well enough to produce very good quality prints. Just not with this thread. I changed a few settings, upgraded the extruder gears and feed tubes, and shortened the bowden tube by almost half; all for free. I'm sorry but I will be using the 3D Warhorse filaments which I have used before with very few problems. I spent _much_ more than the $5 I "saved" fixing the problems this brand was causing. I'm not sure how Revain selects Revain's Choice products; I can only say that this cannot be due to the quality and usability of the product.