our assignment this week was to design an electric game using the electric components in our kit
i chose to replicate the operation game since i always wanted to try it
the game's idea is to remove the ailments (objects inside the holes on the patient ) with out alarming the patient , the game consists of tweezers , led lamp, and small objects in holes foiled with metallic foil.
the contents of the game form an electric circuit, and the tweezers act as a push button , once the tweezers touch the metallic foil it closes the circuit and turns the led lamp on.
the software used to interpret the designs to the machines were ultimaker cura and fusion 360
fusion 360
Rd works
laser machine
white cardboard
the components used in this project are :
1 x buzzer
1 x 220 ampere resistor
1 x red LED lamp
1 x mini breadboard
1 x 5v adapter
1 x metal tweezers
5 x male\male electric wire jumpers
4 x alligator jumpers
double face tape
aluminum foil sheet
cardboard
i found a YouTube tutorial on how to design the circuit for the game :
https://www.youtube.com/watch?v=5peXIXZXSLk
first, i designed the holes where the ailments will go
i used a picture of the actual game as a canvas in fusion to work on, then traced the ailments and created an offset outline for the holes
final design
i exported the dxf of the stencil to cut on the cardboard with the laser cutting machine.
the cardboard stencil and the back of the board
i created the circuit on tinkercad and used the push button as the tweezers
created a parallel circuit using the led and the buzzer
added the resistor to the cathode of the led lamp
simulating the circuit in tinkercad
for this projects power source i decided to use a 5 volt dc adapter as it gives enough voltage to power the led and the buzzer properly
and for the led i decided to add a 220 ohm resistor to it as it only needs 3v volts to operate
i printed the image of the game board the same size of the stencil
and attached it to the stencil board withe the double face tape
ti tested the circuit first to make sure the buzzer and the led lamp work properly
foiled the back of the stencil board and the back board with the aluminum foil and the double face tape
connected the board to the circuit and attached the tweezers before the switch in the circuit
opening in the housing for the switch and the lamp
housing of the components
final project
i almost lost a lamp because i forgot to add the resistor to it in the circuit,merit helped me and reminded me to the resistor so the lamp can work properly.
i mistakenly reversed the polarity of the led in the simulation , then figured i need to connect each side to its respective polarity.
i could use the skills learnt this week and implement them in designing the circuit for my final project and to better understand how to work with it
making my very own mini game without having to buy a manufactured pricey one.