Larry Jaques wrote:

You'd make your own gears, the common replacement part when you forget
to lock the head to the gibs?

Some people have changed the gear drive to a toothed belt to make the
drivetrain more forgiving.

As for the Z-axis, you can get max travel out of
any of them by going to the gas spring from LMS.

Got a URL?

$39.95, improved design

http://www.littlemachineshop.com/pro...ProductID=2258

Real quickly I can see spending $200 in upgrades before I make the first
chip. Already spent $111 on collets and endmills from Enco.