Raj Sarbib

Hello Post

A design/engineering strength would be that I am organized and have good ideation skills. One area I would like to improve is my coding skills, which I hope to enhance after completing this class.

Three Things I want to commit to in the Documentation of my learning and projects:

Take lots of photos and make sure every image is cropped and oriented correctly on the Google site
Stay on top of my work and make sure to post frequently when working on projects
Keep my site organized and easy to understand all of my creations

PCB Designs

Here are 6 designs which include a pumpkin, a dragon, a guy pooping, a traffic light, a plane, and a sun. We chose the plane as we thought the design was original, and it would be cool to see if we can have a blinking light on the tail wing. We would also use lights to represent the little windows on the plane.

Shaped PCB Design

We designed a plane for our PCB design. We have 8 LEDS that are the windows of the plane and a coded blinking light on the top of the wing. We also added a silkscreen design for the star of our tail wing, a door on the wing and a cockpit window. I am working with Alisa for this project. One thing that I will remember about PCBs is how to use the Fusion software.

Speaker Sketches

My three favorite designs out of these ten are the owl speaker, a portable handheld speaker, and a retro speaker. I am leaning towards the retro speaker as I am planning on engraving a cutout for a Phone to be slid through the front of the speaker to show the music playing and for the aesthetic look.

Post-it Feedback

Most of the class chose the retro boom box over the owl speaker, which I was planning to do anyway. A wooden base with an acrylic design on the front would elevate the design, and if I have time, I might also add a top handle to make it more portable.

Phase Two Drawing

Why do you believe this is an excellent design to design and build?

I believe this design utilizes many tools we have learned in the shops, and I believe this is a unique design with cool, practical features like the phone slit.

How are you challenging your current skill set?

I am using multiple materials, such as wood and acrylic, and I am testing my abilities to engrave space into my speaker for it to hold a phone. I also want it to be the best-sounding speaker.

Modeled Retro Speaker Design

I am mostly done with my Rhino Model. I decided to do a 2D layout as I am only using the laser cutter to cut my components for the speaker. I have added all the output holes for the battery, volumne, switch, and power level. I also designed my phone slit to have a tilt so the phone does not fall out of the speaker.

Cardboard Prototype

My idea has relatively stayed the same: Creating a retro speaker with a phone holder that is both practical and the best sounding. I learned that my amplifier will be pretty big and will need to unsure I am efficient when laser cutting my structure. A modification of the amplifier would be to create a magnetic attaching top side for easy accessibility.

Amp Ciricuit Breadboard

Something I understand after prototyping my circuit are the functions of the resistors and how important they are to make sure the amplifiers sound the best.
Something I learned from Google is that a volume switch on a breadboard amplifier is actually a potentiometer, which is a variable resistor used to create an adjustable voltage divider. It is placed at the input of the amplifier circuit to control the strength of the audio signal before it is amplified.

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