If you are planning to build a CNC foam cutter or need ground shafting for other CNC uses I have a collection of them.  They are pulls from printers.  Some have the matching slides with them.

I could not upload the picture so if anyone is interested e-mail me via the forum and  I will send a picture.  It is a bucket of probably more than a dozen shafts.  I also have a collection of stepper motors as well. 

No charge for this.  Take a few for your own use or all for sharing with others.