Technical Knowledge Base & DFM Library
Curated technical reference library covering tolerance standards, material data sheets, design tips, and manufacturing best practices.
Learn how to manufacture better parts
Polypropylene Injection Molding: The Complete Guide
Master polypropylene (PP) shrinkage rates, living hinge geometry, mold temperatures, and warpage mitigation for medical, automotive, and industrial components.
What Is Precision Injection Molding? The Complete Guide
Comprehensive overview of precision plastic injection molding tolerances (±0.02mm), high-performance engineering resin selection, and micro-cavity tooling guidelines.
Top 10 Quick Turn PCB Suppliers 2026
Ranked technical analysis of high-reliability quick-turn PCB prototyping and SMT assembly facilities with rapid 24h to 72h turnarounds.
Precision Engineering: Designing Custom Enclosures for Extreme Environments
Explore critical DFM guidelines, thermal dissipation strategies, and material selections for rugged industrial and aerospace enclosures.
Advanced 5-Axis CNC Milling vs. Conventional 3-Axis: Cost & Precision Analysis
A deep dive into setup reductions, geometric capabilities, and actual unit economics of multi-axis simultaneous machining.
Medical-Grade Silicone Overmolding: Engineering & Regulatory Considerations
Material compatibility, primerless bonding techniques, and ISO 13485 cleanroom molding protocols for life-science devices.
What engineers are reading now
Choosing Mold Steel: P20 vs H13 vs S136
Compare tool steel grades for prototype vs high-volume injection molds, corrosion resistance, and polishability.
Surface Finishing Guide: Anodizing, Powder Coating & Electroplating
A comprehensive guide to surface finishes for CNC machined and sheet metal parts: corrosion resistance, aesthetics, and thickness callouts.
Aluminum Anodizing Standards: Type II vs Type III Hardcoat
Key engineering differences between MIL-A-8625 Type II sulfuric anodizing and Type III hardcoat anodizing for wear and dielectric strength.
Your complete, practical resource for everything digital manufacturing
Digital manufacturing is a complex topic. There’s always more to learn, especially as designers and engineers develop astounding new technologies and manufacturing processes evolve (and automate). The more you know about manufacturing technologies like 3D printing, CNC machining, injection molding, and sheet metal fabrication, the better equipped you are to design products that can be manufactured easily and at the price point that works for you.
For nearly a decade, Sango CNC has worked to produce comprehensive resources to help you develop revolutionary products. These include The 3D Printing Handbook, our complete technical guides on every Sango technology, and the Knowledge Base—a growing collection of articles for new and seasoned engineers.
The manufacturing knowledge in this resource will help you develop products faster and more cost-efficiently, advising on custom part sourcing for any stage of the innovation process. Whether you’re creating an initial prototype, sourcing parts for a functional prototype, scaling toward full production, or making custom replacement components, the Knowledge Base is here to guide you.
Frequently Asked
Questions.