When it comes to CNC machines, your SureFine has screws on its axes, and the Bodgeport does too. A shopbot has an amazing rack gear system, but when you start to dig into the small CNC routers ...

For more inexpensive MDF-based CNC machines, check out this drawer slide bearing one or this one that uses a drill for a spindle.

Like most home DIY CNC machines, the TTC450 Pro is primarily designed for woodworking and other softer materials. The CNC's design is distinctly workshop-like, as with most machines of this type ...