Technological World Linking Building a Racecar Linking Parts

Technological World Linking

Building a Racecar

Linking Parts Together � Linking is the mechanical function performed different components (items) that connect different parts of a technical object together � Basically, linking is how two parts stay together

Characteristics of Links � To describe links in various technical objects, each link is described with four basic characteristics: � Direct or Indirect � Rigid or Flexible � Removable or Non-Removable � Complete or Partial

Direct or Indirect � Direct : two parts are held together without a linking component (no nail, no screw, no glue) � Indirect: two parts are held together with a linking component (there is a nail, or screw, or glue) � Direct Indirect

Rigid or Flexible � Rigid: a link is rigid if the linking component or the surfaces of the linked parts are rigid � Flexible: a link is flexible if the linking component or the surfaces of the linked parts can be deformed. Usually springs or rubber is used. � Rigid Flexible

Removable or Non-removable � Removable: a link is removable when the linked parts can be separated without damaging either their surfaces or the linking component. � Non-removable: a link is non-removable when separating the linked parts damages their surfaces or their linking component. � Removable Non-removable

Complete or Partial � Complete: a link is complete when it prevents linked parts from moving independently of one another � Partial: a link is partial when at least one part can move independently of the other parts � Complete Partial

Example � Pen + Pen Cap � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?

Example � Two blades of a pair of scissors � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?

Do on your own… � 2 Lego Blocks � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?

Do on your own… � Two pieces of fenceboard � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?

Table leg + Table top � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?

Two Steel Beams � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?

Cupboard + Wall � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?

Wheel + Axle � Direct or Indirect? � Rigid or Flexible? � Removable or non-removable? � Complete or Partial?