Water Soluable PVA Not Properly Sticking to ABS
I have been using BfB PLA and ABS and I have had issues with ABS/PLA combinations not sticking together. This time I have been been using ABS from Bfb and Water soluable PVA from makerbot. I wonder if this is just a material issue.
I have tried again with a few minor settings using PLA as the base profile. There is no change with the Water soluable PVA refusing to attach to the ABS raft. I have not tried this using PLA. That is my next experiment, but I feel the results will be the same. Has anyone else had success with these materials?
I've played with it a touch. I've found that raising the temp when extruding the PLA allows it to stick a bit better to the ABS, but even then it doesn't stick great (I use ABS as raft material, so I need a little stick to prevent warping, but not to much so I can seperate).
John
Thanks for your advice. I have had better success with the ABS/PLA cominations, but I have been experiencing the same issues wuth a PVA/ ABS combination or a PVA/PLA combination. I have raised the temperature slightly, but the PVA still does not want to stick properly to either the ABS or PLA base. The documentation states that the temperature should not be kept higher than 200 degrees otherwise pyrolsis may result and the extruder nozzels will be damaged and permanently clogged with the carbonized PVA.
I might try to increase extrusion speeds next. I may also have to try to dry out the filament. It has been kept sealed in the air tight plastic container and lots of silcon gel dissication packs as well.
Has anyone made any head way with this?
We've managed to print a successful object with a PLA raft and PVA part material. Our problems begin when we change the PVA from part material to support material. We want to print using PLA as the raft, PVA as support, and ABS as the part. Something seems to be changing the PVA when it is going from part to support. In the Axon program the only thing you can change about the support material is the temperature so I'm not sure what the issue could be.
Thanks,
Zach Pinner
Hey Zach Pinner,
I am facing the problem of using makerbot white PVA as Raft and support material and bfb white PLA a spart material. In my case the PLA does not stick to the PVA raft. Even not by (slightly overheated) 210°C and increased extrusion speed. Did you make any progress solving the PVA used as raft and support material?
By the way, I have a theory: I used white PLA from bfb. The white color could come from nanostructured titanium dioxid (unfortunately I could not find the technical specification of the white PLA). This could make the surface very slippery. So I want to tray transparent PLA from bfb as part material.
Best regards,
Filsi
No, I still have not had any success with the PVA material.
I have had this problem with ABS and orbi PLA whereas ABS and BfB PLA sticks great?