Mini-mill to surface grinder 'conversion'

[cognitdiss]

I guess in this case I was lucky in that the motion came from the assembly I was grinding (it's a rotating ball nut adaptor for the CNC we've been making and we needed the surface precisely concentric to the rotation). That took away some of the drudgeries of having to turn mill handles to move the y- table back and forth. But with an electric drill that wouldn't be so bad? Anyone else done this? I don't see it shown as a hack?