Ivan N.

12/8/25

Worked on installing the servo block. Ran into a problem with the forearm because the servo screw got stripped when I was trying to tighten it. Planning on fixing that next class, as well as screwing in the servo block. Inspired by Charlie’s finger, maybe could do the same with mine?

12/5/25

While testing how the servo for the thumb was working, the horn snapped because it was holding too much, so I spent class fixing it. I also double-checked my poster for tonight’s session.

12/2/25

On the first two days returning from the break, I finished my poster. I had some time on Tuesday to attach the fingers to the main part and superglue them to the main base. The arm is coming along nicely, and I plan to attach the servos next.

11/19/25

Last class, I ran into a problem with the forearm connecting to an external piece. A servo horn is attached to the forearm, and the actual servo is on the external piece. The goal is to attach the servo to the servo horn, then put a screw in to connect it. The problem is can’t find the right screw, and the servo is mounted too far away from the horn, so that sometimes it can’t fit into it. In this class, I want to fix this problem and continue working on my arm. Once I feel comfortable with the progress of my arm, I will start my poster and hopefully show all of the arms I have worked on.

11/10/25

I am thinking of printing a design I found on Thingiverse. To build this, I need a Nylon Cord, 5 MG958 Servos, 1 MG90S servo, and then fishing line between .5mm and .8mm. I also need to 3D print the parts. I am looking forward to building this over the next two weeks. Once I am finished with this, I am looking to continue in the area of robotics and hope to maybe add sensors to mirror the hand to the robotic hand.

11/3/25

For the arm, we obviously need bionic fingers. For the first design at least, I am thinking of 3d printing fingers, and then to control them, I would attach a string to them and then link that to a servo so that I could control how much the finger goes in. Once I came up with a design I liked, I would then replicate it with the other fingers so I could get 5 fingers. I haven't thought of how the finegrs would come together, but I have an idea of where to start.

10/27/25:

Looking into the future, I want to develop a full bionic arm. With my previous knowledge of 3D printing, servos, and coding from working on all the other smaller arms, I should be able to get a good starting point. My first step would be research, followed by a 3D model, and then I would start building. This is not going to be an easy project, and it will take time and hard work.

10/17/25

In the limited time I have had to work on my arm, I have been redesigning the base. I included a place where the bottom servo wire could run through. I have also added a place where I can add weights to balance it out, because if the arm goes too far back, it will start to fall off where it is supposed to be mounted. I am going to now work on the code for the arm in hopes of getting it to draw simple objects/shapes.

10/6/25

Last class, I attached the mount to the arm. I drilled a hole into the mount because there is a servo at the bottom of the arm, so I had to do that because I needed to run a wire from the servo to a board. I then connected all of the servo wires to a smaller board. Wires ran from the Arduino Uno, which was connected to the computer, to the smaller board where all the servos were connected. I am in the process of connecting the smaller board to a voltage regulator circuit and then programming the arm to have all servos move out of one board.

10/1/25

I was able to get a mechanical arm to move. It was made up of 4 servos, and I can get each one to move by itself, but I am in the process of trying to connect all servos to one board, and hopefully then I could attach some sort of writing device, and maybe I could program it to be able to write/draw something. I am also in the process of 3D printing a mount because if I want it to move standing up, I have to use a foam base. Hopefully, by the time class ends, I can have all the servos connected to one board.

9/26/25

Last class, I got all the fingers to move back and forth. To get it to move, I plugged the brown servo wire into the GND pin on the Arduino Uno. I then plugged the orange wire into the 5V pin right next to the brown wire. The yellow wire then went into the 9-pin. Note that there were jumper wires between the servo’s wire and where they plugged in. Once they were connected, I plugged the blue USB-Cord into the input for the Arduino Uno and the USB into the WIRSD computer. I then ran the Arduino IDE. Once I was in the app, I clicked file, then examples, then servo, then sweep. This has written basic code that could make the finger move back and forth. For the rest of this class, I want to figure out how to make all the fingers work at once. Then I want to figure out how to assign a position to each finger so it can play rock, paper, scissors.

9/19/25

In the last class, I conducted research on what it would be like to design a launch monitor for a golf simulator. I came across an interview where this guy interviewed the founder of a company called PiTrac. The cool thing about this is it's all DIY, but they don’t sell any actual parts. They just give you the recommendations for the parts. You have to buy all of the parts yourself, but they provided the instructions. If I were to do this, I would need to modify a specific type of camera and 3D print some parts. This would be a challenging project as it involves lots of skills I don’t know how to use. It would include soldering, 3D printing, modeling, and lots of research. This would be a big project, and if I continue to try and aim for my bigger goal of finishing this simulator, this would just be the first step.

9/17/25

Over the past week, I have been trying to fix a prosthetic hand that could play rock, paper, scissors. I tried just plugging an Arduino Uno with an SG92R Servo into the WISRD computer. The first one I tested didn’t work because it was a faulty servo. I tried another one, and this time it worked. I have been able to get the servo to work, so I moved on to trying to make the hand work again. The first problem I ran into was that one of the fingers wasn’t connected to the servo, so I drilled a hole and attached it. The second problem I encountered was that the same servo that wasn’t connected also failed to function. I find all of this interesting, but I think my interest might be in another project.