Hello again!
Let’s pick up from where we left off. After scavenging through my pile of miscellaneous items, I managed to find a frame for my robot. I added wheels and a few other components, moving next to the most challenging part for a beginner in mechanics like me: designing the front-wheel steering mechanism.
This part was quite tricky and required some research. After exploring the internet, experimenting, and sketching on paper, I realized that I needed two parallel shafts. A servo motor would be connected to one of them to handle the steering. While my drawing isn’t perfect, it conveys the concept clearly enough.
With the idea in mind, I started building the mechanism using cardboard. I assembled the components with screws, but the resulting structure lacked the necessary durability. It wasn’t up to my expectations, so I brainstormed alternative materials and decided to use popsicle sticks for their sturdiness and ease of handling.
I rushed to the nearest confectionery store to get some popsicle sticks and started over from scratch.
Some sticks needed trimming, which I did with wire cutters, while others required reinforcement with adhesive. That’s when I realized I had left my glue gun at a friend’s workshop in another city! After a quick trip to buy a new glue gun and some glue sticks, I resumed work.
Using a drill, I created holes at the ends of the popsicle sticks. These holes served dual purposes: securing the pieces with screws and functioning as pivot points. After assembling the components, I finally had a working prototype, as shown in the image. It was a significant step forward, but I knew there were still challenges ahead.
Through trial and error, I discovered that popsicle sticks weren’t ideal for stabilizing the wheel shafts. I decided to use metal for better durability and precision. Back to my storage area, I found an aluminum sheet that seemed perfect for the job. I cut it to the required dimensions and drilled three precise holes for mounting.
Next, I assembled the components using screws and hot glue to create a more stable structure. I mounted the servo motor securely between the two shafts, as seen in the final image.
I also uploaded a video on my YouTube channel showing my first test, which unfortunately didn’t go as planned. However, I’m determined to refine the mechanism further and explore better designs in future attempts.
When I finished building the mechanic parts I will work on how to make the robot smart and autonomous, so it can do its tasks at its will.
Stay tuned for updates, as I tackle these challenges and share more of my learning journey!