Hi All
From my 6 years of ShopBot experience, and moving it from a lightweight design to something more suitable for daily reliable production, a bigger brother has evolved. Since ShopBot won't do a gantry longer than 5 ft, and most of our boards in this country are 6 ft wide (9 ft long), we were practically obliged to build our own MechMate from the ground up. See www.mechmate.com for pics and more of the story in a forum over there.
Many people (mostly ShopBotters) have asked for plans, and I do intend to publish them once they are tidied up. These plans would be available to a wider audience.
What makes the MechMate different? Well, the Keep It Simple & Stupid principles are applied. It does not use the finest linear bearings and ballscrews - rather it uses affordable, reliable elements that need little maintenance, yet still produces a passable cut quality for the bulk of profitable jobs. The MechMate is geared towards maximising income for minimal outlay.
Anyway, this post was just to wet your appetite a bit - now I must go and clean up the plans!
All the best
Gerald Dorrington