We've downloaded a standard test on Thingiverse and printed one. We discussed several points to look for when printing and how to solve some of the problems.
The general idea was use same test file in diferents machines with diferents settings, in order to compare the results.
This is the test list and what we can conclude from it:
When the corners of the print start to bend. Here are a couple of the methods to reduce the warping effect
Reducing the in fill(different sizes and patterns) the less dense the model gets (Choose different sizes and patterns, the hexagonal ones take longer not recommended)
Reduce wall thickness. Create pads int he corners of your model
Brim - good to maintain the model on bed
Raft - only good for model ta touch little the bed
Heat platform of printer
Hairspray is very good to stick models in the printers bed especially heated ones (take glass and spray, good for 5 prints)