The lesson aims to introduce students to Reusing and Recycling of waste in creating their own products or toys in particular. The lesson will also introduce kids to electronic devices and circuits and modern joining methods. Mechanical transmissions will also be introduced to learners.
Glue Gun
Motors
Card Board/ Cartons
Battery Holder
Battery
Plastic Bottles
Plastic Bottle Tops
Marker Pens
Switch
Wires
Vinyl sheet(optional)
Clean bottles Mark Bottles Cut Bottles into the desired shape
Clean the bottles using detergent as required thoroughly and let them dry
Mark out half the bottle round to indicate the designated cutting area
Cut the bottle using a scissors
Cut the top of the bottle top into an irregular shape and create a hole in the middle
Make a hole on the side of the bottom half for placing the switch and passage of wires
Creating the Electrical circuit
On a piece of paper draw the circuit of how the battery will be connected to the switch and the motor
Identify the color code of wires and the terminals of batteries and electrical devices i.e. the motor
Test the motor by connecting it to the battery
Connect the positive side of the battery to one side of the switch and solder it
Connect one side of the switch to the positive side of the motor and solder it
Connect the neutral side of the battery to the neutral side of the motor
Assembling the Buzzer Assembling the Draw Bot
Place the irregular shaped bottle top on the shaft of the motor and glue it, this now forms the buzzer. Test it and see if it vibrates by placing the batteries in the battery holder
Pass the wires leading to the motor from the top and place the motor on the side of the open bottom half of the bottle
Glue it using a Glue Gun
Place the Battery holder on the top of the bottom half placed upside down and glue it
Place the switch on the side and reinforce it using super glue
Place three markers at a proportional equal distance to each other around the bottle and tape them round, remove the tops and test the draw bot
Trace an image on paper 2D transfer Vinyl Cutting and Transfer
Draw an image on paper of any sticker after identifying the dimensions of the draw bot
Take a picture or scan the drawing
Convert it into vector form using a CAD software
Print the vector using a vinyl cutter
Transfer the sticker
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