[Perry] was interested in adding a 4th axis to his CNC machine, but not very excited at the prospect of spending hundreds of dollars on the parts and electronics to make it work. There is a very ...

Since machine is 4 axis, meaning both sides can move forward/back and up/down independently of each other, tapered shapes are possible. One example where this would be helpful is cutting wings ...

Jacob & Co. says it has broken the final frontier of watchmaking with its Astronomia Revolution 4th Dimension, which is ...