Printing with PVA

[markwain 0]

Hi there!
So ... I am new to printing with PVA. (I want to use it as support material). 
Is it best to use some adhesive while printing large parts with PLA+PVA. (My case is - most of the print bottom layers will be support material, which is PVA).

 

Appreciate any help
 

Edited April 6, 2018 by markwain

[XYZDesignPro 70]

Not at all.  Just use a 60° bed temp (default for PLA / PVA printing).  Here's some screen shots of a 7.5" tall part, bottle, that is almost entirely PVA on the build plate.  About a 6 hour build.

Bottom Layer

4th Layer

8th Layer Showing Support Roof

12th Layer Showing Bottom of Part over Support Roof

Final Part

 

This part is hollow (0% In Fill).  Start out using the default settings and adjust accordingly.

 

Hope this gets you started off on the right path.

 

 

[markwain 0]

@XYZDesignPro thanks for your repply!

Maybe you have some more information like can use PVA as brim material - will it adhere - I mean does PVA sticks well to heated bed comparably to PLA/ABS?

[XYZDesignPro 70]

I find that PVA adheres very well to the glass bed.  About the same a PLA and much better than ABS.  Without knowing what it is you are attempting to print, I have no idea whether or not you may need a brim.  As you can see, the part I have posted uses no brim at all.  Just two lines of Skirt 3mm away from the part to assure a good prime of the extruder.