Hello it's the first message I sent.I'm Italian and I speak little English.I find great CdRsKuLL [/size]work[/size][size=78%] [/size][/size]I can not immagginare how long he took to realize this project.[size=78%][/size]I am printing the pieces with my printer kossell xl and are coming very well.I have probblemi with the shopping list the links do not open.But the main question is how long should be the carbon tubes?.Thank you for any help you can give me.I hope you understand that my terrible Google Translator EnglishAlessandro[size=78%]