Embedded Files
Project Ideation
Project Ideation
1- Tell us about the idea of your project. Why do you care about this? What were you inspired by? Include images and videos of similar projects
1- Tell us about the idea of your project. Why do you care about this? What were you inspired by? Include images and videos of similar projects
My idea is A hand resistance
I came up with this idea because I had a previous injury and used crutches for a year and a half. This personal experience, combined with my work as a physiotherapist, where I see many patients with varying disabilities also the expense of the hand dynamometer in Egypt, gave me deeper insights into making smart hand dynamometer work as an assessment and treatment for the hand grip in a motivational way. I also chose the hand grip because it's the most important function for the hand and daily activity.
Project Construction
Project Construction
2- Explain the CAD process of your project. How did you use the software to design your project? (List the softwares/tools/materials...etc that you used)
2- Explain the CAD process of your project. How did you use the software to design your project? (List the softwares/tools/materials...etc that you used)
Tools
fusion 360 for designee the two mean features :
fusion 360 for designee the two mean features :
1- the hand grip
1- the hand grip
2- the body machine
2- the body machine
caliper for measuring the real related component to the project (LCD/LED cover/ON-OFF switch /power supply )
caliper for measuring the real related component to the project (LCD/LED cover/ON-OFF switch /power supply )
caliper
1- the hand grip :
1- the hand grip :
1- Draw all the components' faces in fusion by taking the average measurement of the faces to consider the force sensor's meager as the force sensor has to be shown in the front for accurate measurement of the hand grasp.
2- While sketching make sure all the lines are fully defined so as not to move while drawing in the sketch.
3- extrude and fillet all the faces to be smoother for the hand especially extrude cut in the side faces to leave apart for the finger while grabbing the component.
4- insert the force sensor component and make a joint between the front face and the force sensor to make sure the measurement of the component is okay.
5- for the appearance, I gave the competent( black PLA) appearance like the real final look.
SKETCHING
1- sketching the front face by considering the measuring of force sensor because it would be in the front face
2- sketching rectangle in the end of force senor to extrude this rectangle later .
3- after extrude the front face i draw this circle to extrude it later for entering the wire to force sensor .
Extrude
Here i extured all the faces for making the desgin more function and smoothing fot the hand
here i made extruded cut to the borders to leave palace for the fingers .
Here i extruded the wiring place for wiring the Force sensor to the body machine
fillet
for making the design more smooth and less plastic need i made fillet to the borders after extrude
Screen Recording 2025-02-27 095356.mp4
2- the body machine
2- the body machine
1- Draw all the components' faces in fusion using ( by taking the average measurement of the faces. also, consider the related components to the body machine ( by measuring the real related components with Digital Clipper for more accurate measurements )
2- While sketching make sure all the lines are fully defined so as not to move while drawing in the sketch.
3- extrude all the faces 3.00 to 3.20 mm ( the wood sickness )to be smoother in the assembly of all the faces together.
4- insert the related components into the body machine(Arduino / LCD/ screws /nuts/on-off switch / led covers ) and make a joint between all the components to make sure the measurement of the components is okay.
5- for the appearance, I gave the competent( wood color ) appearance like the real final look.
sketching
here sketching the front face with considering the measuring of LCD / two LED cover
here sketching the side face with considering the measuring of Arduino
here sketching the back face with considering the measuring of ON-OFF switch and terminal block .
here sketching the side face
here sketching the side face with considering leaving a place for enter the wire from body machine to the hand grip component by drawing a circuit .
sketching the bottom face of the machine
sketching the top face of the machine
sketching the top of hand grip place
Extrude
Here I extruded all the faces 3 mm ( the wood thickness) .
here I extruded the Arduino screw place in the design .
Screen Recording 2025-03-08 232621.mp4here I assembled the screws and Arduino in the design to make sure from the measuring of the faces .
3- Explain the fabrication process of your project. How did you use the machine to fabricate your project? (List the softwares/tools/materials...etc that you used)
3- Explain the fabrication process of your project. How did you use the machine to fabricate your project? (List the softwares/tools/materials...etc that you used)
Software :
ultimaker cura sofwear for 3d printing ( the hand grip compenet )
ultimaker cura sofwear for 3d printing ( the hand grip compenet )
RDworks software for laser cutting ( the body machine )
RDworks software for laser cutting ( the body machine )
Tools :
laser cutting machine for cutting the wood ( the body machine )
pursa machine for 3d printing ( the hand grip)
Materials :
PLA plastic filament
wood 3mm
Fabrication :
1- 3D printing ( the hand grip )
1- 3D printing ( the hand grip )
1- after designing the hand grip in Fusion 360 I export the files as stl to Cura to adjust the design for printing in the Prusa machine. by making : (infill 5.0/layer height 0.2/support in everywhere ( tree ) )
2—Download the file in the purse machine and leave the component to be printed overnight ( 7 hours .51 minutes). Then, remove all the support plastic and adjust the final shape with the cutter.
cura softwear :
Screen Recording 2025-03-10 003243.mp4
482739143_9153140214813096_1781082736448382163_n.mp4482265986_3210280305793017_8178505658287538261_n.mp4482780671_9522474521107311_2503345940484203973_n.mp4
Lasser cut ( the body machine );
Lasser cut ( the body machine );
1—After designing the body machine in Fusion 360, I exported the files as DXF to RDworks to adjust the design for cutting in the laser cut machine. I divided the color in RDworks into Black for cutting: power = 45, speed = 40 /Red for scanning: power = 25, speed = 250 /blue for speed cut: power = 25, speed = 250.
speed cut in the front face/ scan for the side face. / cut for all the faces .
2—Download the file in the laser cut machine for cutting the wood. then assemble all the parts after wood cutting.
RD WORKS software :
laser cut machine :
482951548_9451155531617096_4083776509345603245_n.mp4483079497_9458514644212398_7317968963536326304_n.mp4483389056_9307540772700814_7071981975009124672_n.mp4483349122_9773661139331902_6371483898944480548_n.mp4
483801696_28903699312579229_8627503682776113526_n.mp4Project Electronics & Power Management
Project Electronics & Power Management
4- Describe your electronic circuit. What are the input and action components? What is the function of each? How do the components integrate together to form your smart system? (List the softwares/tools/components...etc that you used)
4- Describe your electronic circuit. What are the input and action components? What is the function of each? How do the components integrate together to form your smart system? (List the softwares/tools/components...etc that you used)
tools
0n_ off switch to (on / off )the circuit
min bread board for making the circuit and connect the comments with each other
330 om resistor for ( LED / force sensor)
force sensitive resistor sensor for measuring the hand grip resistance . ( input )
led for lighting (output )
5v adapter for powering the circuit
Arduino for connecting the components in the circuit .
wires for connecting the circuit
terminal block for connecting the circuit
soft wear
the circuit
Thinker CAD doesn't have a force sensor component so I used 2 pin component instead of the force sensor
I used 330 om restore for :
1- LED ( for not explode because the maxim current for the LED is 20 amber )
2- force resistor sensor (because FSR is a resistor whose resistive value varies based on the amount of pressure applied to it and The shorter the FSR’s sensing range, the greater its sensitivity )
In this circuit, I connected :
1- Positive breadboard to vin / negative breadboard to ground Arduino
2- LCD ( pin to + in breadboard/pin to the ground in breadboard / the other 2 pins to A4 A5 )
3- the two LED( negative to ground breadboard / positive to 330 om resistor then to pin 2 and pin 3 )
4- force sensor ( pin to +/ pin to the 330 om resistor then one to ground and the other to AO in the Arduino )
5- terminal block ( + to + in breadboard /negative with a jumper wire to the on-off switch and the other wire of the on-off switch connected to the ground in the breadboard )
484222897_28727762590201178_5531474165740474208_n.mp45- What is your power source? How did you select the suitable power source for your project? (List the softwares/tools/components...etc that you used)
5- What is your power source? How did you select the suitable power source for your project? (List the softwares/tools/components...etc that you used)
all the components taking power from Arduino
Arduino taking power from 5 v adaptor
5 v adaptor
Arduino
Project Programming
Project Programming
6- Describe the code of your project. How did you program each function of the project?
6- Describe the code of your project. How did you program each function of the project?
in this code i wanted to write عاش in the LCD for more motivation so i draw the عاش in the pixels of the lcd using this web site LCD Custom Character Generator then :
1- defined lcd i2c library and enter عاش on the code by defined it with numbers
2- defined force sensor by the amount of force and write عاش on the LCD when the force sensor reach the maximum power <800
3- define the two LED and make them high when the force sensor read < 800 and low if force sensor didn't reach 800
Project Integration & Testing
Project Integration & Testing
7- Demonstrate with text and visuals how did you integrate the project’s modules together? What are the testing results? (Include a Demo video separately, showing a proof of functionality)
7- Demonstrate with text and visuals how did you integrate the project’s modules together? What are the testing results? (Include a Demo video separately, showing a proof of functionality)
2D ( the body machine )
I collected the pieces together and for decoration the front side recycled wood from the laser cut machine
483492442_9507502782643150_8349572884240986133_n.mp4
3D printing ( the hand grip )
I removed all the extra plastic and tried the hand grip with a force sensor to make sure it work
482690026_9614854561905194_5349426351885771237_n.mp4482969877_9229301197163554_7957286149598258130_n.mp4coding :
I tried all the components together with the coding and checked all the components were working correctly
483669864_9375648985889965_4254846280294624278_n.mp4
484357434_9363212040421997_4902405766288832034_n.mp4Sharing & Collaboration
Sharing & Collaboration
8- Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?
8- Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?
Overcoming Challenges
Overcoming Challenges
9- When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this project?
9- When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this project?
1- while drawing the body machine's T slot in the back face. I couldn't draw the t slot correctly and the t slot appeared in the front face so I deleted the back face and drew it again and made sure the other faces were hidden and it didn't do any project from the front face because it was the reason why the t slot appears in the front face,
2-while drawing the hand grip I got stuck in the force sensor place in the design because all FSR have to be shown to feel the resistance and its power supply so here some off my trail till I found the final show by making palace for FRS in the front face and make its power inside the the hand grip component.
Screen Recording 2025-02-24 213404.mp4Screen Recording 2025-02-24 213204.mp4Future Work
Future Work
10- If you had more time, what is one thing you would change/ Do next in your project?
10- If you had more time, what is one thing you would change/ Do next in your project?
if I have time I am going to redesign the hand grab again with moveable plastic in the corner for more flexibility for the hand.
Final Project Design Files
Final Project Design Files
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