3D printing guides for beginners.

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Your first 3D print, step by step

From a file on your screen to an object in your hand. Start with a simple, repeatable process.

8 min read

Start here

What does a 3D print really cost?

Work out filament and electricity costs—and remember the failed prints and finishing time.

Slicing

How to choose layer height for a 3D print

Choose layer height around the detail that matters, compare a worked layer-count example, and use variable layers without guessing at print time.

Walls vs. infill: where should you add material?

Understand walls, top layers, and infill, then compare changes that address flexibility, weak attachment points, and rough top surfaces.

STL vs. 3MF vs. G-code: which file should you download?

Learn which files contain geometry, which preserve a slicer project, and which instruct a printer—and what to check before printing.

How to orient a model before 3D printing

Compare print orientations for strength, surface finish, supports, and bed contact using a simple project worksheet.

When do you need supports? Normal vs. tree supports

Identify unsupported features, compare normal and organic supports, and preview contact points and removal access before printing.

Skirt vs. brim vs. raft: choose the right bed adhesion aid

See what each structure does, when a brim is useful, and how to budget the extra footprint and cleanup before slicing.

Materials

PLA vs. PETG: which should you use?

Choose a filament for the job, with a clear look at printability, heat, and everyday use.

Signs of wet filament: how to investigate moisture

Use symptoms, a saved baseline, and a controlled drying comparison to investigate wet filament without misdiagnosing every print defect.

PLA vs. PLA+: what the label actually tells you

Compare exact PLA formulations using impact, stiffness, heat, and printing data instead of treating the plus sign as a universal upgrade.

Silk vs. matte vs. standard PLA: choose the finish

Choose a PLA finish for your project and plan a small sample to check shine, detail, seams, and usable strength.

How to check filament and spool compatibility

Check filament diameter, material, spool dimensions, holder contact, and the complete feed path before buying another roll.

Smooth vs. textured vs. satin Prusa build plates

Compare genuine Prusa Smooth PEI, Textured, and Satin sheets for PLA and PETG on the Original Prusa MK4 and MK4S.

Design and fit

Design and fit

3D printing tolerances: make parts that fit

Plan clearance, measure mating features, and print a small fit test before committing to the complete part.

Design and fit

Why is my STL the wrong size?

Diagnose unit mismatches, scale percentages, and rotated dimensions without distorting a fitted model.

Troubleshooting

Get your first layer to stick

A practical checklist for gaps, lifting corners, and prints that refuse to stay on the bed.

PETG stringing: diagnose and fix it step by step

Troubleshoot PETG stringing with checks for the slicer profile, filament moisture, nozzle temperature, retraction, and travel moves.

Why prints warp after the first layer sticks

Investigate corners that lift later in a print, using the timing, material, environment, and model geometry.

Elephant’s foot: fix a print that is wider at the bottom

Separate a first-layer flare from a scaling problem and check calibration before adjusting compensation.

Under-extrusion: diagnose missing material

Trace gaps from the slicer and spool to the filament path before changing flow or dismantling the printer.

Planning

Planning

How many prints can you get from a 1 kg spool?

Estimate whole-print yield using sliced job weight, supports, purge waste, remaining filament, and a reserve.

Planning

How much desk space does a 3D printer need?

Measure the complete operating space, including bed movement, spools, doors, cables, and access for maintenance.

Buying guides

How to choose your first 3D printer

Build size, materials, maintenance, and the features that matter when you are starting out.

9 min read

The tools you actually need to start

Build a small, useful toolkit before spending money on upgrades and accessories.

Filament dryer vs. dry box: which do you need?

Separate moisture removal from dry storage, then compare equipment around your materials, spools, and printing routine.

0.4 mm vs. 0.6 mm nozzles: is the swap worth it?

Compare detail, flow limits, compatibility, and profile changes before buying a larger nozzle for your filament printer.

Bambu Lab A1 mini vs. A1: which should you buy?

Choose between the A1 mini and A1 using your actual models, workspace, and multicolor plans—not just a price difference.

3D printers under $300: compare the complete starter cost

Compare current US printer listings, realistic starter allowances, and the checkout total for a first PLA setup under $300.

Enclosed 3D printers under $1,000: models compared

Compare the ELEGOO Centauri Carbon 2 Combo and Creality K1C 2025 around usable build space, material workflow, and total cost.

Compact 3D printers for small workspaces

Compare the A1 mini and K1C 2025, then measure the full operating space, spool access, and maintenance room before buying.

Multicolor printer bundles: is the combo worth it?

Compare A1 AMS lite and ELEGOO CANVAS bundles, calculate the real premium, and account for color changes, waste, and workspace.

3D printers for cosplay helmets and props

Match an A1, Neptune 4 Plus, or Neptune 4 Max to your actual costume files, with examples of splitting, finishing, and project cost.

Prusa kit vs. assembled printer: which should you buy?

Compare the current MK4S kit and assembled offer, then weigh the price difference against assembly time, learning, and project deadlines.

PLA filament buying guide: choose your first useful spool

Compare SUNLU PLA, Bambu PLA Basic, Polymaker PLA Pro, and Prusament around price, profiles, purpose, and spool format.

SUNLU filament dryers: S2 vs. S4 vs. SP2

Choose SUNLU drying capacity by active spools, storage routine, real dimensions, and verified US package prices.

PETG filament buying guide: compare the complete workflow

Compare SUNLU, Polymaker, and Prusament PETG using exact formulations, delivered cost, storage needs, and plate compatibility.

TPU filament buying guide: hardness, feed path, and real cost

Compare PolyFlex TPU95, Bambu TPU 95A HF, and TPU for AMS without confusing hardness scales or automatic-feeder compatibility.

Bulk filament vs. refills: which actually saves money?

Compare multipacks, reusable-spool refills, and large reels, including the new Prusament refill format and an honest break-even calculation.

Filament storage kits: boxes, bags, and modular systems

Compare PolyDryer boxes, Prusa USS Drybox, and storage-kit essentials by capacity, feeding needs, and total setup cost.

Digital calipers for 3D printing: what to buy

Compare measuring range, stated accuracy, data output, and jaw access before buying calipers for printed parts.

Heat-set insert kits: match the insert, tip, and iron

Compare CNC Kitchen and ruthex insert systems and assemble a compatible kit for threaded printed projects.

Brass vs. hardened steel nozzles: a buying guide

Choose nozzle material for your filament, then verify the hotend interface and supported profile.

Replacement build plates: buy the right fit and surface

Compare Bambu Textured PEI and Cool Plate SuperTack while checking geometry, material compatibility, and care.

Deburring and finishing tools for 3D prints

Compare replaceable swivel blades and ceramic scrapers for accessible edges, light flash, and repeat cleanup.

3D printer cameras: compare the complete setup

Compare Buddy3D and Raspberry Pi camera options, including field of view, hosting, remote access, and ongoing costs.

3D printer spare parts: build a useful small inventory

Choose exact replacement parts and compare consumables kits, bare hotends, and complete assemblies.

Anycubic Kobra 4 vs. Kobra X: which should you buy?

Compare the Kobra 4, Kobra 4 Combo, and Kobra X by included color hardware, drying, project size, and complete purchase cost.

Anycubic Kobra S1 vs. S1 Max: do you need the larger printer?

Decide whether larger parts, active chamber heating, and a different color-feeder generation justify choosing the S1 Max over the S1.

Anycubic ACE Pro vs. ACE 2 Pro: compatibility and upgrade guide

Check the printer, feeder generation, included connection parts, spool dimensions, and material path before buying or upgrading an Anycubic ACE.

Kobra 3 Max V2 vs. Kobra S1 Max: choosing a large-format printer

Compare the larger open Kobra 3 Max V2 Combo with the enclosed S1 Max using actual model fit, material requirements, and bundle contents.

High-speed PLA vs. standard PLA: is the premium useful?

Decide whether high-speed PLA can help your actual prints using flow demand, model geometry, and a simple cost comparison.

SUNLU PLA+ vs. PLA+ 2.0: what can you actually compare?

Separate SUNLU standard and High Speed PLA+ variants, check conflicting specifications, and choose a sensible first sample.

Carbon-fiber PLA buying guide: check the whole printer

Evaluate PLA-CF by nozzle wear, material data, feeder compatibility, finish, and the true cost of a first spool.

Rainbow vs. dual-color vs. tri-color filament

Choose a gradient or changing viewing-angle effect, then match the filament to your model size, finish, and color expectations.

FDM vs. resin for miniatures and tabletop terrain

Choose a process for detailed figures, large terrain, and realistic hobby workflows, including resin handling and finishing.

A beginner resin-printing budget beyond the printer

Build a complete resin-printing shopping list for equipment, workspace controls, cleaning, curing, consumables, and waste.

Do you need a wash-and-cure station?

Compare combined and separate resin-finishing setups by real part fit, solvent compatibility, throughput, and maintenance.

Getting started with Gridfinity: printer, filament, and hardware

Plan one drawer, choose a printable baseplate and bin set, and buy only the filament and optional hardware your Gridfinity design requires.

3D printing board-game organizers: printer and filament buying guide

Match an insert to your game edition, sleeves, box, printer, and storage orientation before committing to a full set of printed trays.

Screw and nut kits for 3D prints: which sizes will you use?

Choose fasteners from actual project requirements: diameter, pitch, length, head shape, nut pocket, and useful quantities instead of assortment size.

Magnets for 3D prints: sizes, fit, and buying checks

Choose magnets for adult hobby projects by pocket dimensions, separation, polarity, and retention—not just a pull-force headline or magnet grade.

Glue for PLA and PETG: what to buy for your joint

Compare cyanoacrylate, two-part epoxy, and mechanical fasteners for printed parts, with cure-time checks and a small-sample selection process.

Painting 3D prints: a practical starter shopping list

Build a small finishing kit with preparation tools, compatible primer and paint, masking supplies, and product-specific workspace requirements.

Used vs. refurbished vs. new 3D printers: what is the better buy?

Compare the real cost of a used or refurbished 3D printer, including inspection, missing parts, warranty evidence, returns, and repair risk.

Cloud vs. offline 3D printers: what to check before buying

Compare cloud printing, local-network control, and removable-media workflows. Check activation, cameras, updates, and account requirements separately.

Upgrade your 3D printer or buy a second one?

Decide whether an upgrade or another printer solves your actual bottleneck, with a workload checklist and an illustrative ownership-cost comparison.