Paper Mechanical Iris

Step 4 Glue it on

Get the foam core, the piece in the first picture is too small, it is only big enough for one part.
Using larger foam core, glue on the cam wheel and brass ring separately(far apart), also from the extra paper you have, cut out an extra cam wheel and glue it on, it is used later on to hold the cam wheel together.

Comments

[maxwelljets]

Are the cam wheel and brass ring in the completed iris made of foam, or made of paper? Also, in the completed iris, is there one cam wheel or 2? Could I substitute cardboard for foam?

[dombeef]

Foam, there are 2, one for the movement, one for alignment,and maybe?

[FireFreek]

So we cut out 1 cam wheel and 1 brass ring from the foam?
And one extra brass ring from the paper and glue it where?

[dombeef]

Sorry, my mistake, i changed it.
You need two cam wheels, one for them movement, and the other for alignment, and one brass ring