[carlnpa]

I took a Nook precision ballscrew to the local machine shop to have ends machined for K2 machine. I provided the new ballscrew and asked them to duplicate the old ballscrew. Picked it up today and the ballscrew is slightly bent, the ends where the bearings mount are 0.010 eccentric on both ends , (it turns like a crankshaft) and 0.006 oversize, it was cut long (fixed by cutting a spacer washer).
I can't use the ballscrew as it is, should the shop replace the ballscrew? Or is this my problem for providing the ballscrew?
Any advice appreciated.