Timeline
Feb 15: Complete Define & Inquire
Day 1 Feb 17: Complete Develop & Plan, buy the cotton and the material to hold the lamp structure, and start to make the cardboard part of the windmill.
Day 2 Feb 21: Finish the making of the windmill. Decide whether to use gears, if so how to connect them.
Day 3 Feb 23: Carry out the plan from the last class.
Day 4 Feb 27: Connect the circuit and consider the appearance of the prototype.
Day 5 Mar 1: Finalize the prototype.
Materials
- motor*1
- 2 pieces of cardboard 50cm*50cm
- Cotton
- Lampshade
- Wires 10cm
- LED light that can be connected to wires
- Clear glue
- White glue
- 5cm diameter gear and 1.5 cm diameter gear.
Procedure
- Make 4*3cm diameter circles with a hole in the middle using cardboard and stick them layered together using white glue.
- Cut an 8cm*2.5cm rectangle, cut the top corners, and cut out a semicircle on the other shorter edge.
- Curve the rectangle cardboard in half and stick it onto the circle made in step 1 to make a blade of the windmill.
- Repeat steps 2 and 3 for 4 times, and connect the windmill made to the 5cm diameter gear.
- Connect the gear to the cardboard box using iron wire (see model).
- Make a 20cm long cylinder cardboard stick connecting to the bottom of the cardboard box.
- Cover the side DC motor with cardboard, connect the 1.5cm gear with the DC motor by putting the top of the motor through the hole in on the center of the gear.
- Glue the finished windmill to a base of 9cm*9cm.
- Glue the finished motor in step 8 to another 9cm*9cm cardboard base, matching together the gears.
- Connect the finished windmill with the base to a 40cm to 25cm cardboard.
- Glue the LED light on the same 40cm*25cm cardboard, beside the windmill.
- Connect the wires of the motor with the extra 10 cm wire, then connect it to the LED light.
- Glue the cotton onto the lampshade.
- Glue the cotton lampshade onto the 40*30 cardboard on top of the LED light.
First model:
Second model: (gear connection, other parts are the same as the first model).
Success Criteria:
- Create a rigid prototype of a windmill using cardboard that could produce energy when in an environment with a large wind.
- The LED light would be successfully powered through wind power.
- The appearance of the windmill and lamp is considerably appealing.