Attachment 7537Attachment 7538Attachment 7539
Another two nemma 24 endplates coming off the production line. Seriously though an end plate will take about 2.5 hours to print with a layer height of about .2mm and a nozzle of .35 mm. You also need a heated bed to about 110C for ABS and about 60C for PLA plastic but PLA is not suitable for temps higher than about 60c as it softens.

I don't think converting a cnc machine is viable the feed rates are a lot higher with 3D printing. For those that are interested look at RepRap Forums there are plenty of self builds. Re the pics the one made with screwed rod is a Prusa and the other is a mendel90. All the plastic bits were made on the Prusa for the M90