the top edge will be parallel to that surface. If one roller is raised by a known distance, usually using gauge blocks, then the top edge of the bar will be tilted by the same amount forming an angle that may be calculated by the application of the sine rule.

* The hypotenuse is a constant dimension--(100 mm or 10 inches in the examples shown).
* The height is obtained from the dimension between the bottom of one roller and the table's surface.
* The