PVA actually becomes more brittle upon water absorption. Try drying it out and keeping it dry when you are not using it.
"Ultimaker S5 with its custom-engineered Material Station and Air Manager, now you can transform your office 3D printing workflow with automated material handling, optimized air filtration, and filament humidity control."
The purpose of the purchasing the S5 pro bundle was that this system integrated a filament humidity control. Maybe the pva that came with it was compromised? However the case, the room in which this sets on, does not receive humidity and with the added humidity control on the system in itself I figure the pva would not brittle. I ended up tucking away the pva filament and using the breakaway.
- 1
38 minutes ago, ccmaker2020 said:"Ultimaker S5 with its custom-engineered Material Station and Air Manager, now you can transform your office 3D printing workflow with automated material handling, optimized air filtration, and filament humidity control."
The purpose of the purchasing the S5 pro bundle was that this system integrated a filament humidity control. Maybe the pva that came with it was compromised? However the case, the room in which this sets on, does not receive humidity and with the added humidity control on the system in itself I figure the pva would not brittle. I ended up tucking away the pva filament and using the breakaway.
I am in the same boat. I had a lot of trouble with the PVA and switched back.
I've notived that the PVA becomes noticably more ductile as it warms up.
With that in mind, the last couple of prints I've put the spool on the print bed at 30C for an hour or so. Both prints has succeed, but a sample size of two is not exactly data... I've looked through the material station doco, it makes not mention of temperature control. So I assume it doesn't.
Taking the spool out also gave me a chance to check the filament tip and sharpen it up. Sometimes it comes out of the extruder after depriming quite blunt, which has caused me issues in the past.
8 hours ago, willryan3 said:PVA actually becomes more brittle upon water absorption. Try drying it out and keeping it dry when you are not using it.
My PVA lives in the material station. Material station doesn't get turned off - except when I am pulling PVA fragments out of the tubes 🤪. But the material station should be taking care of the moisture problem, so I don't think that's an issue. Though I have no way of testing humidity.
I dont know the moisture limits for UM PVA, or if this is the only reason, but if stored in a room with 30% humidity a longer time it will break in the bowden.
This is from my own experience.
I would be worried about temperature cycling for the equipment though. That cold in the mornings would likely cause condensation
Edited by AndersK23 hours ago, ccmaker2020 said:"Ultimaker S5 with its custom-engineered Material Station and Air Manager, now you can transform your office 3D printing workflow with automated material handling, optimized air filtration, and filament humidity control."
The purpose of the purchasing the S5 pro bundle was that this system integrated a filament humidity control. Maybe the pva that came with it was compromised? However the case, the room in which this sets on, does not receive humidity and with the added humidity control on the system in itself I figure the pva would not brittle. I ended up tucking away the pva filament and using the breakaway.
Hi, it indeed has humidity control but an important nuance to make is that the material station is capable of keeping your PVA dry, but its purpose or capacity doesn't cover making it dry. So it is always recommended to dry your filament before loading it in the material station to ensure it is dry. Hope this helps!
Recommended Posts
ccmaker2020 2
I had this problem as well and I ended up using the breakaway material due to it getting caught. I hardly use the PVA now. (Using a s5 pro bundle)
Link to post
Share on other sites