Knowledge Hub
3D Printing Guides
Latest guides

Tariffs and 3D Printing: When Printing Parts in the US Wins
Tariffs made imported small runs harder to price. When domestic 3D printing beats importing a part, when it doesn't, and how to compare landed cost.
Read guide
3D Printing Replacement Parts for Discontinued Products
A broken clip, knob or bracket the maker no longer sells. How to get it reproduced from measurements, a sample or a scan, and which material to choose.
Read guideBrowse all guides
44 guides across 9 topics
NewManufacturing2 min read · Nov 3, 2026Launching a Product With 3D Printing: Your First 100 Units
How small brands and crowdfunded products use 3D printing for a first run: when it beats a mold, how to price by quantity, and keeping batches consistent.
Read guide
NewDesign3 min read · Nov 3, 2026STL Units Explained: Why a Part Comes Out 25.4× Too Small
STL and OBJ files store numbers, not units. Why a part drawn in inches arrives 25.4 times too small, how to spot it before you pay, and how to fix it.
Read guide
NewDesign3 min read · Nov 3, 2026Which CAD Files Can You Upload? STEP, STL, 3MF, SolidWorks and More
Which file formats get an instant 3D printing price, which an engineer quotes by hand, and what to send when you only have SolidWorks, Rhino or a drawing.
Read guide
NewTechnology3 min read · Nov 3, 2026Mixing FDM and SLA in One Order: Choosing the Process Part by Part
One quote can hold FDM and SLA parts. How to choose a process for each part, how a mixed order is priced, and the size limit each part is held to.
Read guide
NewProcurement2 min read · Nov 3, 2026Buying 3D Printing With a Purchase Order: A Guide for Procurement Teams
How to add 3D Services USA as a supplier: W-9, COI and capability statement, purchase orders and net terms, tax-exempt orders, CAGE and UEI.
Read guide
Materials9 min read · Sep 25, 2026Specialty Filaments Explained: ESD, Conductive, Magnetic, Smoothable and More
What specialty 3D printing filaments actually do, and when they are worth it: ESD-safe and conductive grades, magnetic iron-filled PLA, alcohol-smoothable PVB, lightweight foaming PLA and ASA, soluble supports, and decorative finishes.
Read guide
Materials12 min read · Sep 25, 2026How to Choose an SLA Resin: All 21 Resins Compared
Standard, 8K, ABS-like, Tough, PP-like, Durable, Flexible, Glass-filled, ESD, Castable, Dental and more: what makes each SLA resin different, and which one to choose for your part.
Read guide
Materials11 min read · Sep 25, 2026PA6 vs PA66 vs PA12 vs PA11: Choosing the Right Nylon Grade
Not all nylon is the same. How PA6, PA66, PA6/66, PA12, PA11 and PPA differ in strength, heat, moisture and precision, when to add carbon or glass fiber, and which grade fits your part.
Read guide
Materials13 min read · Sep 25, 2026How to Choose a 3D Printing Material: What the Specs Mean and Why One Beats Another
A practical guide to reading material specs (tensile strength, heat resistance, elongation, moisture uptake, UV and chemical resistance) and using them to pick between PLA, PETG, ABS, ASA, nylon, PC, TPU, composites and resins.
Read guide
Materials6 min read · Sep 25, 2026PETG vs PCTG vs PET-CF: The Polyester Family Explained
PETG, PCTG and PET-CF sound alike but behave very differently. How the three copolyesters compare on toughness, heat, stiffness and moisture, and which to choose for your part.
Read guide
Design8 min read · Sep 3, 20263D Printed Electronics Enclosures: From PCB to Product
Design a printed enclosure that fits your board the first time: standoffs, snap-fits, connector cutouts, ventilation, and the path from one-off to small production.
Read guide
Engineering7 min read · Aug 31, 2026Print Orientation and Part Strength: Designing Around Anisotropy
FDM parts are weakest between layers. How orientation decides strength, real Z-versus-XY numbers, and the design moves that neutralize the weak direction.
Read guide
Materials6 min read · Aug 27, 2026Glass Fiber vs Carbon Fiber Filaments: Which Reinforcement Wins?
PETG-GF versus the CF grades: stiffness, toughness, cost, and RF transparency compared — and why glass fiber is the sleeper pick for many parts.
Read guide
Design7 min read · Aug 24, 2026Waterproof 3D Printed Enclosures: Sealing, Gaskets, and Design
How to design printed enclosures that keep water out: material choice, wall sealing, printed TPU gaskets, vapor smoothing, and honest limits versus IP ratings.
Read guide
Industry8 min read · Aug 20, 20263D Printing for Robotics: Grippers, Gears, and Custom Mechanics
Robotics runs on printed parts: end effectors, drive components, sensor mounts, and chassis. Materials and design patterns for parts that move, grip, and survive.
Read guide
Industry8 min read · Aug 17, 2026Automotive 3D Printing: Prototypes, Interior Parts, and Restorations
How automotive teams and restorers use 3D printing: interior trim, under-hood brackets, clips and fasteners, and materials that survive dashboards and engine bays.
Read guide
Industry7 min read · Aug 13, 20263D Printing Drone Parts: Frames, Mounts, and Field Repairs
Why drone builders print: PA-CF frames and mounts, weight-versus-stiffness math, vibration-tolerant design, and materials that survive crashes and summer heat.
Read guide
Manufacturing7 min read · Aug 10, 20263D Printed Jigs and Fixtures: The Fastest ROI in Manufacturing
Why manufacturing aids are 3D printing's best business case: same-week custom fixtures at 10-20% of machined cost, with real examples from assembly, welding, and QC.
Read guide
Manufacturing7 min read · Aug 6, 2026Large-Format 3D Printing: Big Parts, Sectioning, and Bonding
How to print parts bigger than the build volume: when one big print beats sections, joint design for bonded assemblies, and what large parts really cost.
Read guide
Industry8 min read · Aug 3, 20263D Printing for Medical Devices, Labs, and Clinics
How medical device developers, research labs, and clinics use 3D printing: anatomical models, lab fixtures, dental applications, and the regulatory lines that matter.
Read guide
Engineering7 min read · Jul 30, 2026Infill Explained: Density, Patterns, and Real Part Strength
What infill percentage actually does to strength, weight, and cost — plus when 20% is plenty, when to go solid, and why walls usually matter more.
Read guide
Design6 min read · Jul 27, 2026Heat-Set Inserts and Threads in 3D Printed Parts
The three ways to put threads in a printed part — printed threads, tapping, and heat-set brass inserts — with strength comparisons and design specs for each.
Read guide
Materials7 min read · Jul 23, 2026Polycarbonate (PC) 3D Printing: The Strongest Standard Filament
PC prints the toughest, most heat-resistant parts of any mainstream filament. Properties, applications, honest limitations, and how it compares to Nylon and ABS.
Read guide
Materials7 min read · Jul 20, 2026TPU 3D Printing: Flexible Parts That Actually Work
How to design and order flexible TPU parts: shore hardness explained, real use cases from gaskets to grips, and the design rules that make rubber-like prints succeed.
Read guide
Materials9 min read · Jul 15, 2026Carbon Fiber 3D Printing: PLA-CF vs PETG-CF vs PA-CF Compared
What carbon fiber filaments actually do (and don't do). Stiffness gains, weight savings, printability, and how to choose between PLA-CF, PETG-CF, PA-CF, and PAHT-CF.
Read guide
Technology8 min read · Jul 15, 2026High-Speed FDM: How 300+ mm/s Printers Changed Cost and Lead Time
CoreXY motion, input shaping, and high-flow hotends pushed FDM from 60 to 300+ mm/s. What actually got faster, what the quality tradeoffs are, and what it means for your quote.
Read guide
Materials7 min read · Jul 15, 2026PETG vs ASA: Choosing the Right Filament for Outdoor Parts
ASA and PETG are the two default choices for parts that live outside. UV stability, temperature, warping, and cost compared — with clear guidance on when each wins.
Read guide
Materials8 min read · Jul 15, 2026Engineering SLA Resins: Tough, High-Temp, and Flexible Explained
Modern SLA is not just for pretty prototypes. Tough, high-temperature (200°C+), and flexible engineering resins compared, with real use cases and design guidance.
Read guide
Engineering9 min read · Jul 15, 20263D Printing for Rapid Prototyping: The Complete Guide
How to use 3D printing to accelerate product development. Turnaround times, material selection for prototypes, and when 3D printing beats CNC or injection molding.
Read guide
Engineering7 min read · Jul 15, 20263D Printing Tolerances and Accuracy: What to Expect
Dimensional accuracy, tolerances, and surface finish for FDM and SLA. How to design parts that fit, with data tables and guidelines.
Read guide
Manufacturing8 min read · Jul 15, 20263D Printing for Small Batch Production: When It Makes Sense
Cost breakeven analysis between 3D printing, CNC machining, and injection molding for low-volume manufacturing from 1 to 1,000 parts.
Read guide
Materials7 min read · Jul 15, 2026PLA vs ABS vs PETG: Which Filament Should You Choose?
Head-to-head comparison of the three most popular FDM filaments. Strength, heat resistance, printability, and cost compared with real test data.
Read guide
Finishing8 min read · Jul 15, 2026Post-Processing 3D Prints: Sanding, Painting, and Finishing
Step-by-step techniques for professional-quality finishes on FDM and SLA prints. Sanding grits, primers, paint types, and vapor smoothing.
Read guide
Industry9 min read · Jul 15, 20263D Printing for Aerospace and Defense Applications
How aerospace companies use 3D printing for flight-ready parts, tooling, and prototypes. ITAR compliance, material certifications, and case studies.
Read guide
Design6 min read · Jul 15, 2026How to Prepare CAD Files for 3D Printing
Export settings, file formats (STL, STEP, 3MF), mesh repair, and common pitfalls when converting CAD designs to printable files.
Read guide
Manufacturing10 min read · Jul 15, 20263D Printing vs CNC Machining: Which Should You Choose?
Cost, lead time, material options, and design freedom compared. Decision framework for choosing between additive and subtractive manufacturing.
Read guide
Materials8 min read · Jul 15, 2026Nylon 3D Printing: Properties, Applications, and Design Tips
Everything you need to know about 3D printing with Nylon (PA6, PA12). Moisture control, print settings, mechanical properties, and best use cases.
Read guide
Pricing10 min read · Apr 18, 2026How Much Does 3D Printing Cost? Complete Pricing Breakdown
What determines the cost of a 3D printed part. Material cost, print time, labor, finishing, and quantity discounts explained with real examples.
Read guide
Design6 min read · Mar 5, 2026Design Tips for 3D Printing
Common design mistakes and how to avoid them. Wall thickness, overhangs, support structures, and orientation best practices.
Read guide
Technology8 min read · Feb 15, 2026FDM vs SLA: Choosing the Right 3D Printing Technology
A practical comparison of FDM and SLA printing. When to use each technology, material options, cost differences, and which one fits your project.
Read guide
Materials12 min read · Jan 28, 20263D Printing Material Selection Guide
How to choose the right material for your 3D printed part. Covers PLA, ABS, PETG, Nylon, TPU, and SLA resins with comparison tables.
Read guide
