Why we hate engineers

Summary

In this engaging video, the host explores the dynamic relationship between machinists and designers in engineering, highlighting their potential for conflict and the importance of collaboration. Through humorous anecdotes and practical advice, the video emphasizes key principles for improving teamwork, such as maximizing tolerances, using standard measurements, and the necessity of having machinists involved in the design process. By sharing lessons learned from seasoned professionals, the host aims to guide the next generation to avoid common pitfalls, ultimately fostering more efficient and cost-effective manufacturing practices.

Takeaways

• 😀 Machinists and designers must communicate effectively to avoid costly mistakes in engineering projects.
• 🛠️ Machining involves taking raw materials and precisely shaping them through a controlled subtractive process like CNC milling.
• 📏 Designers provide 3D models that specify important details like dimensions, materials, and stress tolerances necessary for production.
• 💡 Tight tolerances should only be specified when absolutely necessary to allow machinists to work efficiently.
• 📊 Standard charts for tools and bits can help machinists save time and prevent delays caused by ordering non-standard items.
• 📝 Realistic designs are essential; overly thin components can lead to structural failures and production issues.
• 🔄 Using standard radii for parts can minimize costs and production time by eliminating the need for special tooling.
• 🤝 Involving a machinist in the design process can help identify potential issues early, leading to smoother project execution.
• 🚗 Humor and relatable scenarios highlight the frustrations of miscommunication between machinists and designers.
• 👍 The collaboration between machinists and designers is crucial for successful engineering projects, enhancing productivity and teamwork.

Q & A

What is the primary role of a machinist in the engineering process?

A machinist takes raw materials, such as aluminum, and uses controlled processes to cut and shape them into specific parts, a process known as subtractive manufacturing.

What does CNC stand for and how is it relevant to machining?

CNC stands for Computer Numerically Controlled, which refers to a technology that allows machines to be operated with precision using computer programming, essential for creating intricate parts.

How do designers and machinists typically interact during the manufacturing process?

Designers create 3D models of parts that machinists then use to produce actual components. This interaction involves revisions and approvals to ensure the design can be manufactured accurately.

What are some common issues that arise between designers and machinists?

Common issues include unrealistic design specifications, non-standard dimensions, and communication breakdowns, which can lead to delays and increased costs.

What advice did the experienced machinists give to avoid conflicts with designers?

They suggested maximizing tolerances where applicable, using standard charts for measurements, being realistic about design feasibility, and involving machinists in the design process.

Why is it important for machinists to have standard charts available?

Standard charts provide machinists with a reference for commonly used drill bits and other tools, helping them quickly identify what is needed for a project and avoiding delays from ordering specialized equipment.

What is the significance of tolerances in machining?

Tolerances dictate the allowable variations in a part's dimensions. Tight tolerances require more precision and time to achieve, which can increase production costs.

How does the experience of older machinists benefit younger engineers?

Older machinists can share valuable insights from their careers, helping younger engineers to design parts that are more manufacturable and to avoid common pitfalls in the process.

What is the impact of having a machinist involved in the design phase?

Involving a machinist early in the design phase can help identify potential manufacturing issues, leading to more practical designs and cost savings.

What humorous example does the script use to illustrate a common design mistake?

The script humorously compares the absurdity of designing a part that requires the precision of a Lamborghini while the actual requirement might just be a simple component like a cup holder.