How do you make a moveable knee joint model?

Answer 1

There are 6 types of freely moving joints: ball-and-socket, hinge, glide, pivot, ellipsoidal, and saddle.

If you want to make each one:

ball-and-socket: Joystick on a game controller

hinge: door hinge

glide: 2 blocks, or dominoes, put together face to face and held by 2 rubber bands, one lengthwise and the other crosswise

pivot: the mechanism inside a dead bolt lock works by pivoting when you lock and unlock it

ellipsoidal: like the joystick, only the movement is smaller

saddle: toy saddle with a toy human model sitting in it and move it in all directions except a pivot.

Answer 2

2 toilet rolls (just the cardboard bit at then end)

paper mache + newspaper, paper

rubbery stuff

get the two rolls as a base then paper mache over them to form the desired shape, paint white, then get rubber bands to act as ligamentsso they are stretchy and you should look online what knees really looks like.

Answer 3

To make a moveable knee joint model, you can use materials like cardboard, straws, paper fasteners, and string. Create the bones of the knee joint using cardboard and secure them with paper fasteners to allow movement. Use straws and string to simulate ligaments and tendons, connecting the bones to allow for bending and extension.

Answer 4

You can use your textbook to get all of the right parts. There are also images online to get you started.