====== ladders ======

^ Projects infobox ^^
| Image | {{:archive:ladder.scad.png?240}} |
| designers | [[:user:tim|Timothy Schmidt]] |
| date | 2021 |
| vitamins |  |
| materials |  |
| transformations |  |
| lifecycles |  |
| parts | [[:bolts|Bolts]], [[:end_caps|End caps]], [[:frames|Frames]], [[:nuts|Nuts]] |
| tools | [[:wrenches|Wrenches]] |
| techniques | [[:tri_joints|Tri joints]] |
| git |  |
| files |  |
| suppliers |  |

[[:category:projects|Category:Projects]]

[[:category:tools|Category:Tools]]

==== Introduction ====

A ladder is a vertical or inclined set of rungs or steps.

There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top. The vertical members of a rigid ladder are called stringers or rails (US) or stiles (UK).

Rigid ladders are usually portable, but some types are permanently fixed to a structure, building, or equipment. They are commonly made of metal, wood, or fiberglass, but they have been known to be made of tough plastic.

==== Challenges ====

==== Approaches ====

==== Fixed ladder ====

{{:archive:ladder.scad.png?600}}

{{:archive:tanzania-ladder_20191021-183526.jpg?600}}

==== Sectional ladder ====

==== References ====

  * [[https://en.wikipedia.org/wiki/Ladder|Wikipedia: Ladder]]

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[[https://github.com/timschmidt/replimat/blob/e0bc0b855bb946bab00c75ca0d8b002ae0dc0172/wiki/ladders.html|Original archived page]] — revision 8049, 2021-09-23T09:03:31+00:00, by Tim.