Blog
Technical Knowledge for Hardware Engineers
Practical articles on CAD design, prototyping, injection molding and DFM — straight from an engineer.
CAD Design
What Does CAD Design Cost?
Pricing models, cost ranges and comparison: Freelancer vs. Agency vs. Retainer.
Prototyping
Prototyping Costs Compared
3D printing, CNC, silicone mold, rapid tooling — costs, timelines and decision matrix.
Injection Molding
Injection Molding Costs: What an Enclosure Really Costs
Tool costs, per-unit costs and break-even analysis for injection molding projects.
Injection Molding
7 DFM Mistakes That Double Your Injection Molding Cost
The most common Design for Manufacturing mistakes and how to avoid them.
Design
5 Enclosure Design Mistakes That Cost You Money
Wall thickness, draft angles, tolerances, parting line, assembly concept.
Prototyping
3D Printing vs. CNC: When Does Each Make Sense?
Comparison by cost, quality, material and use case.
Injection Molding
Injection Molding Processes: Cavities, Multi-Component, Gas Assist
Cost comparison and decision criteria for specialty molding processes.
Prototyping
Rapid Tooling: Aluminum Molds for Small Series
Aluminum molds for small series: cost, tool life, and lead time compared to steel.
Engineering
Tolerance Analysis & GD&T: What Engineers Need to Know
Tolerance stacks and geometric dimensioning per ISO 1101 — why it matters for manufacturing.
Injection Molding
Material Selection for Injection Molding: PA, PP, ABS, POM, TPE Compared
The most important injection molding plastics compared: strength, shrinkage, cost and typical applications.
CAD Design
Reverse Engineering: Reconstructing Existing Parts
From physical part to parametric CAD model: 3D scanning, CT, surface reconstruction and tolerance pitfalls.