CAD Assignment

Introduction

For my CAD project, I decided to create a design of a robot arm in Onshape. As a beginner, I was new to the world of computer aided design, so I relied on AI tools such as Notebook LM and ChatGPT to guide me and help me learn the basic functions and techniques. By using these tools, I was able to explore sketching, extruding, and shaping 3D objects, gradually building my skills while completing the project. This experience not only introduced me to the fundamentals of CAD but also allowed me to see how AI can support learning and problem-solving in design.

As Thomas Edison once said, “Genius is one percent inspiration and ninety-nine percent perspiration,” and this project showed me how effort combined with guidance can lead to meaningful and powerful results.

Reflections

Working on this CAD project in Onshape was a really awesome experience for me. At the start, I was a complete beginner and didn’t know where to begin, but by using AI and tutorials, it really helped me figure out the basics step by step. I learned not just how to use the tools, but also how to think like a designer, planning, testing ideas, and improving my work along the way. It was exciting to see my sketches turn into real 3D models, and even more satisfying to solve problems I didn’t know I could. Overall, this project taught me patience, creativity, and the value of learning through trial and error, and it definitely makes me feel more confident about exploring CAD in the future.

Description of my Design

For my CAD project, I designed a robot arm using Onshape. I started by sketching the main parts of the arm, such as the base, joints, and segments, making sure all the dimensions were accurate. Then, I used the extrude tool to turn those sketches into 3D parts. Once all the pieces were finished, I assembled them using different mates such as the revolute mate (which makes the different pieces stick together) to make sure the arm could move realistically.

After completing the assembly, I created a detailed mechanical drawing that included important dimensions and a Bill of Materials listing all the parts. This project helped me understand how sketching, extruding, and assembling come together to create a working design, and it showed me how important precision and planning are in mechanical design.

To add on to my “Ai Discussions” panel, I have used more tutorials on platforms such as YouTube as I found those easier to comprehend and to follow along with in comparison to asking NotebookLM or other AI websites. A great example of this would be when I was confused about where the extrude button was, and Gemini’s Descriptions were not as useful as the immersive tutorials online.

Comments

2 Responses to “CAD Assignment”

  1. mcrompton Avatar
    mcrompton

    Good start, Daniel. You’ve demonstrated beginning skills of sketching and extruding and have a basic mechanical drawing with a basic BOM. What we are missing here is any kind of assembly. We have one part in this designed, which means that, unless you are assembling multiple instances of the same part, you have nothing to assemble. Once you have a second part, likely created in a second part studio, assemble these two parts in some meaningful way using mates. Update your mechanical drawing and BOM to reflect the edited design and resubmit. Can I also ask that the bulk of your blog post be visible on this post page? While it is acceptable to have something like the AI transcript linked as it is tangential to the primary discussion, the rest of this material, including images, can be embeded in the page itself. Thank you!

    1. mcrompton Avatar
      mcrompton

      OK. Getting closer, Daniel. Your part design is good and your assembly is very good! Typically, we would create each part in it’s own part studio, but I can see an advantage to designing the full set of parts in the same part studio for this design. We need to complete the mechanical drawing now. It needs to be thoughfully laid out and include all the critical dimensions. Also, the mechanical drawing can include the BOM. We’ll continue to work on creating a more user friendly blog post design. Once you’ve completed the maechanical drawing and BOM, please resubmit.

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