beginning steps to building my cnc

[njhussey]

You can do either of 2 things...one is to use a stepper on each X axis ballscrew the other is using pulleys and belts. running both ballscrews from one stepper. On the belt one you put a pulley on the end of each ballscrew and one on the stepper and connect them with a belt. Most people seem to use 5mm pitch HTC belts...

[Jonathan]

Belts and pulleys connect the stepper motor to the ballscrew. Some of the advantages are the ability to select the drive ratio, so you can make the motor operate in the optimal region of its speed/torque curve and they help damp vibrations.

Most people seem to use 5mm pitch HTC belts...

It's HTD, not a mobile phone ;)