About this 3D model

Hello Everybody, A new Calibration tower is in town! Easy to calibrate in one time your retraction, each step are separate by 10mm of distance, slice your tower and add more process to find your best retraction distance. After that's, try with the small tower, each tower have a 3mm diametre. Enjoy, and don't forget to like my simply design and share your printer and result to help other people. Peace!