re:Re: re: gantry router

Les wrote:

>Rather than XXYZ control the minor pitch variation between the two x
>screws is taken out by a simple cam/rotating ballnut.
>It's an old victorian trick to make a leadscrew's pitch more
>accurate than it was manufactured to.

Les,

Please tell us more about this! And/Or post links/Refs??

>Having made the plunge from hobby to profession I am tending
>to make too much myself and not outsource enough!!

You're probably in good company here, then! :-)

Ballendo