Product design and development with Rebel Engineering

Most people think making a product stronger automatically makes it better, but that’s not always true. In this video, I break down the difference between overbuilding and proper engineering, and why blindly adding strength can actually hurt your design.

Why are modern cars so hard to repair? In this podcast, I break down the real reason behind the tension between engineers and mechanics, and why it’s not as simple as “bad design.”

Engineering vs Engineering Technology, what’s the real difference, and which degree is right for you?

The sunk cost fallacy can quietly derail engineers, inventors, and product developers. When you’ve invested months (or years) into a design, walking away can feel impossible, even when a better solution exists.

Have a game-changing product idea but worried no one will buy it? In this video, I break down the 5 real-world tests I’d use to validate a product idea before investing serious time and money based on decades of experience designing, developing, manufacturing, and selling physical products. You’ll learn how to prototype quickly, test demand without looking like a scam, gather meaningful customer feedback, refine your design, and validate pricing for profit. If you’re an entrepreneur, inventor, or engineer preparing to bring a physical product to market, this framework can save you years of effort and thousands of dollars. Topics covered: product validation, prototyping, market testing, customer interviews, pricing strategy, manufacturing readiness, startup product development.

✅ Get my free product development Cheat Sheet: 👉 https://shorturl.at/5qSGX ✅ www.rebeleng.us What’s the real difference between overbuilding and overengineering? In product design and mechanical engineering, making something stronger, heavier, or more complex than necessary can quietly ruin usability, cost, and market success. Using real-world examples—from shovels and vacuums to smartphones and failed tech products—this video explains how to design for intent, avoid costly mistakes, and build products people actually want to use. If you’re an engineer, inventor, entrepreneur, or product developer, this is a must-watch before you take a physical product to market. ⏱️⏱️VIDEO CHAPTERS⏱️⏱️ 0:00 — Overbuilt vs. overengineered explained 0:29 — The 30-lb “tank” snow shovel story 1:48 — How engineers might overengineer a shovel 4:41 — Cheap vs. professional-grade tools 5:26 — Why good products still fail 6:47 — The overbuilt Kirby vacuum example 7:36 — The overengineered Dyson teardown 9:01 — What professionals actually use 9:28 — Designing for intent (not extremes) 10:16 — Designing for the 99% vs. the 1% 11:05 — When overbuilding makes sense 12:10 — Quantity, lifecycle, and smart design decisions 👤 Connect With Me On Other Platforms: LinkedIn: / davidjasiewicz Instagram: / rebelengr Facebook: / rebelengineeringanddesign X (Twitter): https://x.com/RebelEngr TikTok: / rebel.engineering For Business Inquiries: [email protected] 

✅ Cheat sheet: 👉 https://shorturl.at/5qSGX www.rebeleng.us - SCHEDULE A FREE 15-MINUTE FEASIBILITY CALL In this video, I break down the most common product design mistakes that quietly increase costs, extend lead times, and push your job to the bottom of the priority list. If you're developing a physical product, working with CNC machining, injection molding, casting, or fabrication, this is essential Design for Manufacturing (DFM) knowledge. We cover tight tolerances, sharp internal corners, missing draft angles, undercuts, unnecessary cosmetic finishes, exotic materials, poor assembly planning, and more, plus how to become the kind of customer manufacturers actually want to work with. If you want lower quotes, faster production, and better supplier relationships, this video will change how you design. ⏱️⏱️VIDEO CHAPTERS⏱️⏱️ 0:00 – Why Manufacturers Go Silent 0:27 – Designs Suppliers Quietly Hate 1:01 – How to Read a Manufacturer’s Reaction 2:57 – Designing Without Choosing a Process 4:21 – The Truth About Tight Tolerances 5:50 – Sharp Corners & Why They’re a Problem 7:12 – Ignoring Draft Angles in Molded Parts 8:12 – The Hidden Cost of Undercuts 9:10 – Overdesigning Cosmetic Surfaces 9:58 – Assembly Strategy Mistakes 11:09 – The Power of Standardizing Parts 12:07 – Avoiding Exotic Materials 12:40 – Manual Processes & Automation Risks 13:37 – The Big Problem: Ignoring Manufacturers 14:40 – The 10,000 Unit Reality Check 👤 Connect With Me On Other Platforms: LinkedIn: https://www.linkedin.com/in/davidjasiewicz/ Instagram: https://www.instagram.com/rebelengr/ Facebook: https://www.facebook.com/rebelengineeringanddesign X (Twitter): https://x.com/RebelEngr TikTok: https://www.tiktok.com/@rebel.engineering For Business Inquiries: [email protected] https://www.patreon.com/RebelEngineering https://buymeacoffee.com/rebelengineering

✅ Cheat sheet: 👉 https://shorturl.at/5qSGXrebeleng.us - Your top location for product design and development resources. If your prototype worked perfectly on your desk, that’s exactly why it might fail in mass production. In this video, I explain why prototypes lie, and how manufacturing exposes every shortcut you took. We cover the biggest mistakes first-time physical product founders make when moving from prototype to production, including tolerance stackup, material changes, 3D printing vs injection molding, tooling costs, assembly errors, and production speed. A prototype proves an idea. Mass production proves discipline. If you're bringing a physical product to market, this will help you avoid costly rework, blown tooling budgets, and painful manufacturing delays. ⏱️⏱️VIDEO CHAPTERS⏱️⏱️ 0:00 – Why Prototypes Fail in Mass Production 0:52 – The Prototype Confidence Trap 1:12 – Proof of Concept vs Production Reality 2:03 – Variation, Tolerances & Why Parts Stop Fitting 2:29 – 3D Printing vs Injection Molding Problems 3:25 – Assembly Errors in High-Volume Manufacturing4:19 – Tolerance Stackup & Six Sigma Explained 4:44 – Material Changes That Break Working Designs6:54 – Tooling Costs, Undercuts & Manufacturing Risk 10:55 – The Mindset Shift: Design for Learning, Not Completion