I'm sorry to say this, but many of the 3D-printed pieces used to connect to the aluminum extrusions are cracking under pressure. As instructed I hand tightened the pieces, and then during final assembly tightened with the allen wrench just slightly, and many of them cracked. In particular every one of the corner braces have split, as well as the LCD holder "legs" and curved pieces that hold the vertical / angles extrusions. I have been very careful not to over tighten, but at the same time you want the machine to be solid so the pieces are printed with precision. Some of the 3D printed pieces have not been printed thick enough, or simply should not have been used IMHO.
While I appreciate the utility of having many of the pieces 3D printed, for some it simply doesn't make sense. For example, the corner brackets for the extrusion are readily available and should be used instead of printed pieces.
My suggestion - please provide proper hardware where possible:
Example: http://www.grainger.com/category/80-20/ ... /N-1z0zhnp
OR, provide a metal backing for the 3D printed pieces so they do not split when tightened.
Will you provide a source so I can purchase replacement parts? (While I realize I can print replacement parts, I can't do that if my printed isn't working...)
I've attached an image for reference. Essentially the piece is too thin, or there is no backing to handle the stress of the piece being tightened. It's interesting to note that every piece splits across the natural "grain" of the printed piece.
Thanks.
While I appreciate the utility of having many of the pieces 3D printed, for some it simply doesn't make sense. For example, the corner brackets for the extrusion are readily available and should be used instead of printed pieces.
My suggestion - please provide proper hardware where possible:
Example: http://www.grainger.com/category/80-20/ ... /N-1z0zhnp
OR, provide a metal backing for the 3D printed pieces so they do not split when tightened.
Will you provide a source so I can purchase replacement parts? (While I realize I can print replacement parts, I can't do that if my printed isn't working...)
I've attached an image for reference. Essentially the piece is too thin, or there is no backing to handle the stress of the piece being tightened. It's interesting to note that every piece splits across the natural "grain" of the printed piece.
Thanks.