Machine-tool accuracy standards

[rakes]

We are in the process of evaluating CNC machine-tools in terms of its positioning accuracy and repeatability. Unfortunately different manufacturers quote different standards like VDI/DGQ 3441, DIN/ISO 230-2 97 etc. Can anyone tell me or point me to a web site where I can have a look at how these standards actaully differ?

 

[steveh]

Try

http://www.cncci.com

(the Mike Lynch site). He may have a link to a site with this info.

Steve