Knowledge Base

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

How Much Does 3D Printing Cost
3D Printing
14 mins

How Much Does 3D Printing Cost?[+ Free Cost Calculator]

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

Oct 17, 2024
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custom metal parts
Buyers' Guides
9 mins

How to Choose the Best Manufacturing Process for Custom Metal Parts

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.

Jun 4, 2026
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custom plastic parts
Buyers' Guides
8 mins

How to Choose the Best Manufacturing Process for Custom Plastic Parts

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.

Jun 4, 2026
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CNC Machining Tolerance and Surface Finish Guide
CNC Machining
8 mins

CNC Machining Tolerance & Surface Finish Guide

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.

May 26, 2026
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SLA vs. SLS vs. MJF vs. Metal 3D Printing
Buyers' Guides
11 mins

3D Printing Process Selection Guide: SLA vs. SLS vs. MJF vs. Metal 3D Printing

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.

May 25, 2026
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DFM Checklist for 3D Printed and CNC Machined Parts
Design Guides
9 mins

DFM Checklist for 3D Printed & CNC Machined Parts: What Engineering Teams Should Review Before Manufacturing

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.

May 25, 2026
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Material Selection Guide for 3D Printing and CNC
Materials
9 mins

Material Selection Guide for 3D Printing & CNC

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.

May 25, 2026
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Applications of 3D Printing in Robotics
Industry
6 mins

Applications of 3D Printing in Robotics

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

May 14, 2026
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metal 3D printing materials
Materials
7 mins

Metal 3D Printing Materials: A Complete Guide

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

Apr 28, 2026
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3D Printing in Industrial Equipment Manufacturing
Industry
8 mins

Top 5 Applications of 3D Printing in Industrial Equipment Manufacturing

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.

Apr 20, 2026
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3D Printing in Medical Devices
Industry
10 mins

3D Printing in Medical Devices: 6 Key Applications

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

Apr 20, 2026
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3D Printing Applications in Car Modification
Industry
7 mins

Top 5 Applications of 3D Printing in Car Modification

Explore how 3D printing is used in car modification, from custom interiors and exterior parts to performance upgrades, fitment testing, and low-volume production.

Apr 14, 2026
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