Precision of hobby 3D printers

[PrintingBro]

Hello guys,

I have performed couple of experiments of precision of printing of my Ultimaker 2 and wrote a paper about it. Could you tell me what you think about it? Maybe you have similar experience, or something totally different? Precission of 3D print by A.Osadchy.pdf
Precission of 3D print by A.Osadchy_0.pdf (275 KB)

[PrintingBro]

Guys, the link wasn’t correct. I have added the new one!
Precission of 3D print by A.Osadchy.pdf (275 KB)

[PrintingBro]

There were no table with testing result for an old one!