Adjustable Sled?

[cestout]

As I understand this machine, it finds the ends (and sides) with the board sensor, and uses the wheel to measure travel. If that is correct, could I cut a piece of Masonite 7 1/4" wide and 48" long, attach a 4"x7 1/4" block permanently to one end and drill holes 1" o/c to attach a similar block as needed along the length to make 1x8Xwhatever signs? If this would work, which end should the overhang be on?
Clint

[AskBud]

The rails are just as important as the end pieces.
The top rollers watch for the "End of the material/sled" and then the measuring changes to the top sensor and the Brass roller, looking for "Each" End. Therefore, as I understand the process, the Rails should extend to each end. Most of us, probably make our sleds at least the same width as our project board (or larger). I would rather make my sled at least 2" wider than the largest board I wish to carve and use movable "Inner Holding Blocks".

Here is a PDF that may help you see my concept.
AskBud
http://www2.wcoil.com/~nharbison/CW-...Use%20Sled.pdf