I have a 75 year old milling machine that I converted to CNC using large stepper motors.
Details are on these 2 links if interested.
I kept the handwheel cranks because the only time I use CNC is for engraving and circuit boards.
Those little machines with multi-part aluminum frames may be good for engraving and circuit boards and light machining in plastic or wood. BUT, the first time you abuse it, the whole thing will be loose and wobbly and never be precise again.
Details are on these 2 links if interested.
I kept the handwheel cranks because the only time I use CNC is for engraving and circuit boards.
Those little machines with multi-part aluminum frames may be good for engraving and circuit boards and light machining in plastic or wood. BUT, the first time you abuse it, the whole thing will be loose and wobbly and never be precise again.