Mill dovetails in two cuts. The first cut is done with a standard endmill and takes out most of the material. The second cut just takes out the profile of the dovetail cutter. Rigidity. Lube. Proper speeds and feeds. Your machine should work fine.
I did this, using this method.
I started with a tan base coat, then added a brown fade. Then I applied stencils, trying to preserve tan/ brown transitions, and be random. I over sprayed with three greens. Then I went back with masks and added the dark brown and the off white accents.
I filled the forearm of a Savage synthetic. I used a burr in a dremel to "tooth" the channel, then brushed on a coat of contact cement as a bonding agent. I laid in two carbon arrow shafts and filled everything with JB Weld. Worked perfectly. Very stiff, almost no deflection, even on a bipod.
A light coat of oil, inside and out, stored in a locked cabinet. Don't store guns in soft/hard cases where they touch foam or lining.
1yr is nothing. There are guns in my safe I haven't touched in a year.