@crossthread82 You bring up some
great points. For my shop, still starting out, a machine like a VF-4/5 with a TRT210 makes a lot of sense. That's a setup I've been thinking about a lot actually. I already need a machine with bigger travels than the VF-2SS we have, but I also want to get into 5 axis because NO ONE around me (at least doing job shop work) has one aka no one can do that kind of work. In my area 5-axis gives me an advantage, and that of course won't last forever, so I want to take advantage of it first and use that experience to do it best after others around here adopt it too. That's probably the biggest reason I want a 5-axis machine, plus 5-axis is just cool, so there's that too.
When we can afford it I want a legitimate 'big-boy' 5-axis, but I have to start somewhere and for now I'm forced to look at the lower tier. When I get to that point I've really been looking at the Okuma M460v-5ax since I also want to get an M560-V or M660-V and don't want a whole bunch of different controls in the shop, but the Doosan DVF-5000 seems like a really good machine for that price range too, and of course who wouldn't love a Hermle C42 or a Grob.
For now, if I went the VF-4/5 + TRT210 route I'd leave the trunnion setup most of the time and only take it off for the really big jobs. Pros: All of the things you mentioned
@crossthread82: more HP, more tools, more travel, more rigidity, Op 2 setup on the side, less expensive, etc. Cons: Only 1 spindle instead of two (VF-4/5 + UMC 350), Machine could only do 5-axis OR 3-axis work while jobs for the other are waiting, no teardown/setup time switching between the two, etc.
Honestly, I'll probably end up going the medium sized VF + trunnion route because I can sell the trunnion if for some reason it doesn't end up working out, plus the trunnion costs waaaay less, and I won't be an almost inevitable beta tester on a new machine.