Is my PVA Printing normal?

[cdrose 8]

Video Here

 

Hi,

 

I recently bought a new Ultimaker PVA 350g spool so I know that it is in good condition and also cleaned my BB core by performing hot and cold pulls, so I believe my nozzle is clean.

 

For some reason when ever I print with PVA it seems to run / drool / leak out of the nozzle after it has laid some down and also seems to curl up and ultimately stick to the rest of the model or the nozzle. Sometimes the PVA oozes out far enough to then collide with the print as the PLA layer is bring printed.

 

I've taken some photos and video of one of my prints to hopefully explain more clearly. The pictures of the nozzle are at the end of the print.

 

Is this printing correctly? There was also a tiny bit of grinding on the filament.

 

Thanks in advanced!

 

 

[BlackCloud 1]

I'm having similar issues. PVA is very messy. I've adjusted retraction settings and that helps some, but it never prints cleanly. ON a complex model these blobs and threads end up getting into the model itself as the nozzle drags the crud all over.

 

Anybody getting clean PVA supports?

[RudydG 62]

Pva does not stick on PLA, this is a known problem. You can try to use the horizontal expansion settting, until the pva touches the buildplate from the buildplate up.

I always avoid pva as much as possible, and use polymaker polysupport, whenever i can. Easier to print, no messy water proces.

Greatings,

Rudy