In most slide bases, a groove is machined around the bottom of the base that can be used to attach the slide to a table using hold-down clamps (supplied). 1/4-20 mounting holes are also provided.
About the XY Slide w/18″ Table
The 6540-18/6541-18 2-axis XY machine slide has an 18″ table with plain handwheels.
Travel: X=13.38″ (340 mm), Y=4″ (102 mm)
These manual slides can be converted to CNC use at a later date by removing the handwheel and collar and retrofitting a stepper motor mount and stepper motor. These same slides can also be purchased already fitted with stepper motor mounts.