by John

This is the list of components and prices (AUD 2013) which was required to update the electronics so the Boxford 125 TCL would run on Mach3 and Windows.

Breakout board  C11  $129

Index pulse board  C3  $26

Gecko stepper drivers G251  $68 x2

Relays, relay bases, parallel port cable, Estop button   ~$80

Power supply  $30

Wireless MPG   from China  Ebay  $129

Heat sinks and adhesive   $20

Other cables, connectors, power sockets  ~$100

PC (an old Dell, running XP Pro, perfectly adequate for Mach 3)   free

Flat screen     free,  wireless keyboard and mouse  free.

Support arm for Screen  $60

Trolley  $200

It all adds up to $AUD910.   Plus the original $1500 for the lathe.  That is pretty inexpensive for a quality CNC lathe.  I am told that the Boxford retailed for about $30,000 in 1985!

Some before and after photos of the conversion…






The back of the lathe opened, showing the old electricals  The spindle motor is top right.


The electricals after the conversion.

The electricals after the conversion.  Some of the old components were retained.  The lights are on the breakout board.