Welcome to Unionfab's knowledge base for practical insights into different manufacturing processes, materials, and design decisions.

Learn about 3D printing costs, including in-house vs. outsourcing options, with a free cost calculator and saving tips.


Compare Metal 3D Printing, CNC Machining, Sheet Metal Fabrication, and Metal Casting to choose the right manufacturing method for custom metal parts based on geometry, tolerance, and application needs.

Compare 3D Printing, CNC Machining, Vacuum Casting, and Injection Molding to choose the right manufacturing method for custom plastic parts based on production volume, geometry, surface finish requirements, lead time, and cost.

Learn how to specify CNC machining tolerances, surface roughness, and finishing requirements for better CNC parts in this practical guide for engineers, product developers, and procurement teams.

Learn how to choose the right additive manufacturing process for prototypes, functional parts, and low-volume production in this practical guide for engineers, product developers, procurement teams, and manufacturing decision-makers.

A DFM checklist for 3D printed and CNC machined parts to help engineering teams review geometry, tolerances, material suitability, post-processing impact, cost and lead-time risks, and other key considerations before manufacturing.

Learn how to choose the right material for prototypes, functional parts, and low-volume production in this practical guide for engineers, product developers, procurement teams, and manufacturing decision-makers.

Explore how 3D printing supports robotics with lightweight structures, custom grippers, metal joints, gears, and fast prototyping.

Explore metal 3D printing materials, compare key alloy properties, and learn how to choose the right metal for your project.

Discover how 3D printing supports industrial equipment: from early-stage prototypes and shop-floor jigs to machine components, robotic tooling, and on-demand spare parts.

From prototypes to end-use parts: how 3D printing is applied to anatomical models, wearable devices, prosthetics, surgical guides, and medical implants.

Explore how 3D printing is used in car modification, from custom interiors and exterior parts to performance upgrades, fitment testing, and low-volume production.
Want to learn more about CNC machining, 3D printing, vacuum casting, sheet metal fabrication, or material selection? Subscribe to Unionfab's newsletter for practical design tips, process guides, and manufacturing resources delivered to your inbox.
Unionfab is China's Largest 3D Printing Manufacturing Company for Rapid Prototyping and On-Demand Production Parts.
