Start by preparing parts of the CNC for overall assembly.

Now we put the pieces together into a CNC machine.

My notes on adjusting and using the A4, beyond the assembly instructions above.

John's Notes:

Notes from the A4's designer on assembling and setting up his great little machine.

The CNCZone thread where the A4 was introduced (on about page 28.) Special appearances by other of John's many CNC machines. Start on page 1, it's all good!