POLYMAKERPolyDissolve S1 PVA Filament, 1.75mm, 750g, Water Soluble Support for PLA/TPU/PVB/Nylon 3D Printer Filament

TLDR: I recommend getting 2 spools so you can switch them out every 12 hours or so. One printing and one in the drier. As far as dissolving the filament, I just put it in a tub of water for several hours, there were some areas that were still sticking after, I just scrubbed them a bit with a dish brush or tooth brush and they cleaned up well.There is not a lot for me to say that hasn't been said in these reviews already. I just wanted to add that if you're running this in a Bambu AMS system, you will need a filament drier. This filament was superb the first few prints, but then once it absorbed enough moisture to be out of spec, it was terrible. It would keep breaking while being retracted and get jammed in the hot end. Had to completely dismantle the hot end 4 or 5 times. After drying it out, it worked well again.I have read discussions online about people not needing a filament drier because the general atmosphere is dry in a particular region where the person lives. I live in the desert in the Southwest United States where humidity is 20% or less (often 10% or less), and I run a filament drier for all my filaments. You will especially need it for this one. It is designed to absorb water so it will dissolve. It will suck up whatever moisture it comes in contact with.

I should of bought some of this stuff much sooner. Its fantastic for full contact supports. Situations where surface finish and accuracy when using support are critical.However its extremely sensitive to humidity. You really need a dry box, and filament dryer for this stuff. To keep it in good working condition. Even more so if you live in an area with high humidity (like i do). If you do these two things, it should behave extremely well for you. With wonderful results. enclosed chamber is probably also a good idea. I haven't tried too use it on anything that doesn't have a fully enclosed print chamber.So far I have not needed to submerge my parts in water to remove the material. Since its about 80-90% humidity here most of the time. After its out of the print chamber 10-15 minutes in the open air, and I can usually separate and remove this PVA support. With my finger and a small spudger (just to start the separation).I will definitely be purchasing this again.

Most importantly it works with PLA +. It also dissolves in hot water from the tap. it did what i needed it to do. I used in in a Bambu Lab X1 carbon through the AMS.

as advertised

This was my 2nd, and at this price, last shot at trying dissolvable support. I've tried cheap, and now not so cheap PVA and both performed in every possible way absolutely identical. Printer is a snapmaker artisan for what it's worth. Made for dual extrusion/multi material.Does not adhere even to glue on the bed. Tried at all temps. Slowest speeds even. It just goops (even with longer retraction) and then gets knocked off the bed and print ruined. I've concluded that PVA is a waste of money across the board.

As a 3D printing newbie I thought the pouches and desiccant that spools ship with would be sufficient to dry the filament. That theory seemed to hold with PLA so I figured I would try it with this on my first print with supports.NOPE. Goopy mess. Tried different temps, retract settings, nothing made a difference. Saw a suggestion to dry this so I picked up a filament dryer, sat it at 50C for 8 hrs, and now it’s working great with the generic PVA settings for my printer (Bambu P1P with AMS).

Because this is clear the optical reader won’t see the filament. Machine stops .Also very poor bed adhesion. Ant recommend for this machine.

Doesn't stick to PLA.

The only PVA filament I’ve used, so maybe others aren’t any better, but I find it very tricky to print. It doesn’t stick to PLA and it burns and clogs nozzles. I rarely get good results the first time with it. Brilliant in theory, frustrating in practice.I’ve found 200C to be the best printing temperature for it. I dissolve it by putting it in a big mixing bowl full of water. Without agitation, it takes about 24 hours to dissolve; much less if you use warm water and agitate it, but I don’t bother.I’m not very experienced with 3d printing, so your mileage may vary.