Sunday, March 14, 2010

Kaleidoscope Prototype (viewing)

* Mirror, viewing hole and test run.


* 3 pieces of acrylic mirror.
* Size:
- 1x (4.2 cm x 27.6 cm) --> rectangle shape and
- 2x (4.2 cm, 27.6 cm, 5.8 cm, 31.6 cm) --> trapezium shape.
* Join them using black duct tape.


* Viewing hole.
* Black paper (outer diameter = 5.4 cm, inner diameter = 2 cm).
* PVC sheet (diameter = 5.4 cm).


* A kaleidoscope prototype.


* Test run (arduino and processing).
* Works fine.



* No good:
- Terrible skill in sawing, drilling and sanding leads to rough edges and gaps between parts.
- Considering a change in terms of material.

Kaleidoscope Prototype (electronics)

* Electronics Embedment


* Drilled a semi-circle hole for the light rotation.


* Soldering the electronics part.


* a white wide angle LED with 230Ω resistor attached on the rotation plate.


* Placing the board inside the box.


* Screwing the rotation plate on the large mailing container.


* Once screw is not enough to hold the plate as it gets rotated when it hits the end of the rail.
* Solution: two screws, one at the top and one at the bottom of the container.



* LED shines on the LDR.

Kaleidoscope Prototype (process)

Building in process


* Rough assembly.


* Melvin gave a hand in drilling a hole on the wood (bottom part).


* Cutting the end of the mailing container to have it flat at the bottom.


* A PVC sheet as a lens at the top of the hole.


* Parts:
- Small mailing container (long end : approx. 31.6 cm, short end : approx. 25.6 cm);
- large mailing container (7 cm);
- bottom part (15 cm x 21 cm) - the hole (8 cm x 9 cm);
- tilt part (14 cm x 15 cm) - the hole (diameter = 5.4 cm);
- top part (10.5 cm x 14 cm);
- sides (3 cm, 21 cm, 13.5 cm, 10.5 cm, 15 cm);
- front part (3 cm x 14 cm);
- back part (3 cm x 14 cm);
- door (12 cm x 14 cm).



* Assembled and glued.

Kaleidoscope Prototype

* Materials :
- Wood (Marie wood is used here);
- PVC sheet;
- acrylic mirror;
- cardboard mailing container cylinder (2 different sizes);
- black paper;
- masking tapes;
- screws;
- door hinge;
- 1 white LED (wide angle);
- 1 LDR;
- 230Ω resistor;
- 1kΩ resistor;
- wires;
- 1 button/ switch;
- 3 Volts battery;
- arduino;
- computer (with Processing and Arduino);



* Cutting the wood according to the design.


* Cutting a circle out of the PVC sheet (diameter = diameter of the large mailing container).
* Inside the cut out circle, another circle is cut (diameter = diameter of the small mailing container).
* Cut 2 of these.


* Large mailing container (7 cm in height).


* Small mailing container (31.6 cm in height).


* Assembled box (taped before gluing).
* Cut out circles to fit the small mailing container in.
* The bottom circle is a bit further (near to the end of the plate) than the top circle (located at the center of the plate) to get an approximately 45 degree tilt.


* Two cut out PVC sheet circles are glued to the large mailing container.


* The previous box is too large for the mailing containers (unbalanced look).
* Cut another box. (image above: parts of the box).


* Drill a hole.

Friday, March 12, 2010

Material test

Kaleidoscope tube test



* Material: Bamboo pole.



* Cutting the middle part of the bamboo.

* Does not work well.
* The bamboo is not a perfect circle, resulting a-not-smooth rotation.