Retraction Test

thingiverse

Update 09/12/16: Made some changes to the base shape so you can tell left from right once they're removed from the bed. Designed these test prints specifically for retraction purposes, with 100 mm of space between cylinders. Use a print setting of 0.4 mm bottom layer only, no top layers at all, and just one wall thickness. You also have the option to set the Z seam to be located at the back for easier inspection.