I don’t know what you guys are trying to run on your molders but based on the condition of some of the spindles in for repair, I think it might just be concrete. Broken shafts, seized bearings, “welded” tooling all can be prevented, and it starts with listening for signs.
A 3-axis CNC router can do more than just machine sheet stock for cabinets. Given the right software and tooling, other than a spiral cutting end mill, a 3-axis CNC router can generate more artistic items than cabinets.
When you stand back and think about it, a CNC machine of whatever variety is nothing more than another power tool that depends on a single or multiple electrical motors to operate, and electrical motors have parts that fail, usually at most inopportune time.