3D Printer FYILibrary
Guides
Each guide is built to help you choose, set up, diagnose, or calculate — then send you to the next useful page.
Where to Find 3D Models for Printing: The Best Repositories, Search Engines, and Communities
A maintained directory of model sites — licenses, FDM vs resin, search quality — plus featured free designs with the creators’ own photos.
Guides3D Printer Calibration and Slicer Tuning: A Baseline-First Workflow
Fix the machine first, save a baseline profile, then tune only the setting that matches the defect you can see.
GuidesFDM 3D Printer Maintenance: What to Clean, Check, Lubricate, and Replace
A usage-based FDM maintenance schedule: what to inspect every print, what to clean, what to lubricate, and what not to oil.
GuidesYour First 3D Printer: Setup, First Print, and the Beginner Mistakes to Avoid
Unbox, inspect, square, load a forgiving filament, and get a repeatable first-layer print without changing ten settings at once.
GuidesResin 3D Printing: Safety, Calibration, and High-Detail Troubleshooting
Workspace and PPE first, then calibrate exposure. Fine detail is XY optics plus Z layers, orientation, supports, and resin condition — not a smaller layer height alone.
MaterialsPLA vs PETG vs ABS: Which Filament Should You Actually Use?
Compare PLA, PETG, and ABS by printability, heat, toughness, enclosure needs, and fumes so you can pick a filament for the part you actually need.
PrintersHow to Choose an FDM 3D Printer: The Specs and Features That Actually Matter
Map build volume, enclosure, motion system, hotend limits, firmware, and spare parts to the parts you actually want to print.
Troubleshoot3D Print Troubleshooting: Identify the Failure, Find the Cause, Fix the Print
Start from what the failed print looks like, test one cause at a time, and stop changing random slicer settings.
Business3D Printing Cost, Pricing, and ROI: How to Know What a Print Really Costs
Price a print from material, machine time, electricity, labor, failure allowance, consumables, and fees — using your numbers, not invented market rates.
GuidesFDM Printer Upgrades That Are Actually Worth It (and the Ones to Skip)
Upgrade only to fix a named failure: reliability first, then surface, hotend, extruder, cooling, motion, probe, and firmware.
MaterialsBeyond PLA and PETG: A Practical Guide to TPU, ASA, Nylon, PC, and Fiber-Filled Filaments
Graduate from PLA/PETG only when you can name the property you need — and the dryer, nozzle, and enclosure that material demands.
MaterialsSustainable 3D Printing: Materials, Waste, Energy, and What Actually Makes a Difference
Separate industrial composting, recycled content, print waste, and energy use so you can cut waste that actually matters.
Discover3D Modeling Software for 3D Printing: Which CAD or Modeling Tool Fits Your Project?
Pick CAD from the kind of part you need: parametric, direct, sculpt, browser, open source, or mesh repair — not from a ‘best software’ list.
BusinessShould Your Small Business Use 3D Printing? A Buy-vs-Outsource Decision Framework
Decide in-house vs outsourced 3D printing from the bottleneck, utilization, QC, and CAD skill — not from a printer ad.
DiscoverFeatured Designers
A recurring series of designer shoutouts. Each profile uses the creator’s own listing photos, credits them, and sends you to their models.
DiscoverZack Freedman — Gridfinity
Shoutout: Zack Freedman’s Gridfinity listings on Thangs, his own photos, licenses to verify, and what to steal as a designer.
DiscoverFeatured Makers
Makers and teachers who use 3D printing as a tool. Two series: Build Volume Is A Suggestion, and Print Smarter.
DiscoverBuild Volume Is A Suggestion
Makers, engineers, and professional bad influences using 3D printing to build things that have absolutely no business fitting on a printer.
DiscoverGet In. It’s a Benchy.
Build Volume Is A Suggestion #003: Emily The Engineer scaled 3DBenchy into a working boat, stood an Ender 3 up to 10 feet, and treated waterproofing as a joinery problem.
DiscoverIvan Miranda Has Declared War on Reasonably Sized Objects
Build Volume Is A Suggestion #001: giant printers, a rideable printed tank, a treadmill belt printer, and a kayak that required maritime testing.
DiscoverCome for the Printed Parts. Stay for the Saddle.
Build Volume Is A Suggestion #002: James Bruton’s ball bikes, screw-bike, openDog, and a rideable transformer — CAD to printed mechanism to something you sit on.
DiscoverYour printer is probably fine. Let's work on the operator.
Creators who teach you a trick, bust a myth, or quietly reveal that you've been doing something wrong for four years.
DiscoverCNC Kitchen — “Some guy on Reddit said” is not a test method
Print Smarter: Stefan Hermann builds a test, prints an unreasonable number of samples, breaks them, graphs the remains, and ruins three confidently held opinions before lunch.
DiscoverMade with Layers — The manual your printer forgot to ship with
Print Smarter: Thomas Sanladerer has been answering the question you were about to post — usually more clearly, and without telling you to replace half the printer first.
DiscoverMaker's Muse — CAD stops being homework
Print Smarter: Angus Deveson teaches the part of 3D printing that becomes obvious after the honeymoon: designing the thing you actually need.
DiscoverOpen-Source 3D Printing: Where to Find Projects, Hardware, Firmware, and Communities
A map of live firmware, hardware, slicer, and model projects — with licenses kept separate and a way to tell if a repo is still alive.
Education3D Printing in the Classroom: Lesson Plans, CAD Tools, and a Teacher Workflow
Use the printer as a manufacturing endpoint. Teach design, constraints, iteration, queue, and safety — not a pile of downloaded STLs.
GuidesMulti-Color and Multi-Material 3D Printing: Systems, Purging, Supports, and Design Tradeoffs
Tell color-change from true multi-material, then pick single-nozzle, IDEX, or toolchanging with purge waste and compatibility in mind.