Air/vent grille (Escher style, lizards)

Air/vent grille or cover made in Maurits Cornelis Escher style. There are two models 120x120mm and 120x80mm made in the same design.

Printed using PLA with the parameters listed below:

• upside down
• no support, no bridges
• 0.32mm layer
• 0.6mm single wall line
• 3x top/bottom layers
• 20% infill
• 1.5-2.0mm retract at 35mm/s (direct extruder)

Designed for 4x 2.5mm countersunk head screws. 

Feel free to print it and I would appreciate if you share with pics of your makes.