Dried PVAc Bed V2.1 for PLA Printing

This is a print bed suitable for PLA printing.

##Changes from V2
- Became printable without raft
However, if you print large models you need a helperdisks.
- Does not decrease printable space

##Requirements
- Wet sandpaper (150 grit) or sander
Used to make the PVAc layer thin and flat.
- PVAc glue
- Wet sandpaper (400 grit)
- Thin double-sided tape
For heavy use of heated beds, those with heat resistance are desirable.
- Plane printbed

##Steps
1. Put thin double-s