Skip to main content

Reply to "scratch G scale ES44AC-H #2010 build w/ charging lights"

Joe,

You can figure it out with trig if you want to use the math method. Or do it graphically by drawing it out.

Presuming that all step nosing lands on the same line, start with the horizontal distance from the top step nose to the bottom step nose, along the straight side of the stepwell.  This distance would represent the adjacent side in the cosine trig function.

So....COS(27) = adjacent ÷ hypotenuse....or rewritten,  hypotenuse = adjacent ÷ COS(27).

The result of this equation would then be used as the opposite side length in a tangent function, with the adjacent side equal to the height from top step to bottom step.  So....

TAN(x) = opposite ÷ adjacent, so TAN(x) = result of the previous cosine function ÷ top to bottom step height.

I hope that all makes sense. I'm not at home now so can't add any graphics to demonstrate the relationships but you could look them up if so desired.

You can also use the results of the initial cosine function to figure the relative lengths of the front and rear edge of each step tread.  Just add that amount to the length of any step's rear edge to yield the length of the corresponding front edge.

Lastly, you'll obviously need to substitute the different angles and lengths for the rear steps.

Good luck!

Jim

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×