Polymaker PETG Filament 1.75mm, 1kg Strong PETG Orange Filament Cardboard Spool - PolyLite PETG 1.75mm Orange 3D Printer Filament, Print with Most 3D Printers Using 3D Filaments

Not the best layer adhesion I've seen, and top surfaces shovel in despite purposefully setting my gcode to underextrude on top surfaces.Not super consistent diameter wise. 1.62-1.86mm across just a few feet of filament.Color is very vivid, and consistent between layers.Not impressed, but not upset. It came dry at least.

My PETG settings. 250C at 20mm sec speed, 20% fan, 80C bed, .12 layer height, I’m brand new to 3D printing. Ironing makes the top layer look really nice. It’s a midi step sequencer. My first experience with PETG so I have nothing to compare it to. PETG cools off quick and prefers higher temps for better adhesion. Since it prints at higher temp than PLA account for shrinkage when it cools. Dimensional accuracy with PETG is challenging. Heat inserts take a little more effort than with PLA but still work great.Also got some Clear PETG which I printed a Mail Boombox with. Total print time 130 hours. It lights up when there's activity at my real mailbox. All the lines in the image is simply the infill pattern showing through. The outside of the arch feels smooth as butter, prints amazingly well when you have your settings dialed in. Polymaker PETG is now my go to filament for PETG in any color including clear (when it's available).

Updated 7/29 (3 to 5 stars): Polymaker contacted me to explain the error. As Amazon handled the logistics for this item, the fault for the used spool shipping was entirely theirs. And though Amazon was unable to issue a refund without returning the used spool (and presumably shipping it to another unsuspecting customer), Polymaker was able to and more than willing. Solid customer service. As noted in the initial review, the filament itself is good. Good adhesion and consistent extrusion (when dry). Definitely like the new cardboard spool.I've bought this PETG filament a few times. Usually prints fine. Latest purchase arrived with one box and bag open, missing about 100 grams of filament, and of course needing to be dehydrated. Not sure if it's Amazon or Polymaker that has a policy of selling returned stock as new, but it is dishonest. ESPECIALLY for a consumable. And doubly so if they don't even validate that it hasn't been opened. Be warned!

All prints done at 240°C & 70-80°C bed temp at 40mm/s, mostly stock Ender 3, haven't had any issues. Bed adhesion can be tricky but a glue stick and a good base help a lot.

I love polymaker I have literally 100s of rolls but man this orange petg is badddd. I got it and put it on the bambu p1s first failed print in 209hrs of print time. Okay maybe it's wet? Nope heated dry box 12hrs, second failed print. Fine maybe bambu is to fast....well 3 other printers later and still failing. Love you polymaker but this orange needs a revamp or I got a bad roll lol