Printing PLA(using a Mendel Prusa i2) and only with larger pieces, I now and then have a warping problem.
The warping occurs only with the first layers. After that, higher up, the print stabilize and the rest is ok.
How can this be avoided.
Heated bed at 60~70 degrees
Level your built plate to a 0.1 from nozzle
Use purple PVA glue from Elmers
Use an smaller layer height for the first layer.
