I have a 4 axis machine, but I only have set up the fourth axis for making turnings. I either leave material sprues on my part to locate it when I flip it over, or I use custom clamping jigs to hold the part in the needed orientation.
There are some parts that you can do in one piece, and in one set up that you cannot do on a 4 axis machine, but unless you are doing high volume, or other special consideration it would be hard to justify the 5th axis. IMO |