Butterfly
thingiverse
Small butterfly to print out as a calibration print, or as a gift to someone who likes small cute things. Instructions This small thing (~9cm) helped me calibrate my Y-axis on my printrbot. After tightening the loose screw on the Y-axis pulley the circles came out pretty smooth.
Download Model from thingiverse
With this file you will be able to print Butterfly with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Butterfly.