Hi Boss
I run a general machine shop, and do only a few molds. As a matter of fact, I was using Bobcad18 when an interesting project came my way that I could not get anywhere with. Mill2000 Professional is what I started on, and it did an excellent job, as you say, of molds. For me, it was just too good to be true.
The fact that even the older Mill2000 will import solids from other programs is worth a lot. If you or your engineers can already produce drawings in solid form, then by all means make use of what is available in automatic toolpathing in Onecnc.
All the traditional options for 2d type pathing are in there, too, just like you are used to with Bobcad. And the rendering and gcode simulation is highly accurate and reliable.
What else can I say: everything works like it should in Onecnc.
I suppose you've already read my hype about the NC manager in the newer Onecnc Mill Professional XP. Believe me when I tell you that you cannot even imagine how useful this feature is. I took a while to catch on to this, being a former Bobcadder myself, I never dreamed such a thing existed.
The essence of 2d work is a lot of tools to manipulate.
I still do a lot of 2d type work, and the NC manager actually shines far more for this, IMO, than a 2 tool program for a mold.
With a properly set up post, I do no nc-code editing. Yet, I do record plenty of changes and optimizations to my nc programs via the nc manager. You don't need to waste your time redrawing toolpaths, or "letting a poor program run" on the shop floor because its too much trouble to edit it.
The NC manager is worth the difference in price.
An added benefit of the XP series, is that you can very easily send in any file you have problems with, and get help with it. You see, the processes that you are going to use to machine, are stored as part of the drawing (the nc manager function), not as nc code, but as CAM info that is transferable. Say you have a problem with some machining process, it can be difficult to explain over the phone, but tech support can see all your processes, and create new ones, or edit yours and send the file back to you.
Whatever package you choose, I fully believe your only sorrow will be that you waited this long to find Onecnc
First you get good, then you get fast. Then grouchiness sets in.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)