March 7, 2019
Description
Spiral Shape Flatness Test
About 80mm Diameter, and 3mm width.
The Closet distance in the center is about 0.42mm
If your machine is in good condition, the center part is not going to stick together
漩渦型平整度列印測試
直徑大小約八公分，
寬度3mm
中央最小縫隙0.42mm
機器精度正確的話，中央部分不會沾黏在一起
License:
Creative Commons - Attribution
dissifilo
