Arch Stairs

Description
The stairs tool allows you to build automatically several types of stairs. At the moment, only straight stairs (with or without a central landing) are supported. Stairs can be built from scratch, or from a straight line, in which case the stairs follow the line. If the line is not horizontal but has a vertical inclination, the stairs will also follow its slope.

See the Stairs entry in wikipedia for a definition of the different terms used to describe parts of stairs.



On the above image, two stairs were created, one with a massive structure and a landing, and another one with a single stringer.

Options

 * Stairs share the common properties and behaviours of all Arch Components

How to use

 * 1) Press the  button, or press,  keys.
 * 2) Adjust the desired properties. Some parts of the stairs, such as the structure, might not appear immediately, if any of the properties makes it impossible, such as a structure thickness of 0.

Properties
Base


 * : The alignment of these stairs on their baseline, if applicable.
 * : The baseline of these stairs, if any.
 * : The total height of these stairs, if not based on a baseline, or the baseline is horizontal.
 * : The total length of these stairs if no baseline is defined.
 * : The width of these stairs.

Steps


 * : The size of the nosing.
 * : The numbers of steps (risers) in these stairs.
 * : The height of the risers.
 * : The depth of the treads.
 * : The thickness of the treads.

Structure


 * : The type of landings.
 * : The offset between the border of the stairs and the structure.
 * : The width of the stringers.
 * : The type of structure of these stairs.
 * : The thickness of the structure.
 * : The type of winders.

Scripting
Stairs can be created from python scripts and macros by using the following function:


 * Creates a stairs object with the given attributes.
 * Returns the new stairs object.

Example:

Limitations

 * Not available before FreeCAD version 0.14
 * Only straight stairs are available at the moment
 * See the forum entry for circle stairs.
 * See the forum announcement.