# FabVector

> Precision CNC machining platform for the Physical AI era: instant CAD-based estimates,
> NDA-protected file handling, 1-piece MOQ, 3-day lead times. 3-5 axis milling, turning,
> Swiss-type, wire EDM and grinding in 40+ metals and plastics.

Upload a STEP/STL file to get a live price range in about 60 seconds. Tolerances to
±0.005 mm. Files are encrypted, stored privately and covered by NDA from upload.

## Core pages

- [Instant quote](https://fabvector.com/quote): upload CAD, configure material/tolerance/finish, get a price range
- [Quality & inspection](https://fabvector.com/quality): inspection reports, material certificates, CoC, FAI and traceability options
- [Security & NDA](https://fabvector.com/security): how customer designs are protected end to end
- [Equipment](https://fabvector.com/equipment): machine list with travels and accuracy
- [Material × finish compatibility matrix](https://fabvector.com/compatibility): what coats, plates and anodizes on what
- [Services overview](https://fabvector.com/services): all machining capabilities
- [Materials overview](https://fabvector.com/materials): all stocked materials with properties
- [Finishes overview](https://fabvector.com/finishes): all surface finishes with specs
- [Industries overview](https://fabvector.com/industries): industry-specific machining guides

## What the platform is best at

- Precision CNC machining for robotics, AI hardware, semiconductors, medical devices, aerospace, energy, optics and industrial automation.
- Structured RFQ intake: CAD files, material, finish, tolerance, quantity, industry, inspection documents, packaging and delivery requirements.
- Engineering-reviewed quotes: estimates are not binding until an engineer reviews manufacturability, tolerance and documentation scope.
- AI-readable catalog mirrors: every service, material, finish and industry page has a Markdown equivalent for assistant ingestion.

## Services

- [CNC Machining](https://fabvector.com/services/cnc-machining): Milling, turning, 5-axis, Swiss-type, EDM and grinding under one roof — one upload, one accountable partner.
- [CNC Milling](https://fabvector.com/services/cnc-milling): 3- and 4-axis vertical machining for housings, brackets, manifolds and structural parts.
- [CNC Turning](https://fabvector.com/services/cnc-turning): Live-tooling lathes for shafts, pins, bushings and threaded fittings up to Ø406 mm.
- [5-Axis Machining](https://fabvector.com/services/5-axis-machining): Simultaneous 5-axis machining for impellers, freeform surfaces and compound-angle features.
- [Swiss-Type Machining](https://fabvector.com/services/swiss-machining): Sliding-headstock lathes for small, slender, high-precision turned parts from Ø1 mm.
- [Wire EDM](https://fabvector.com/services/wire-edm): Electrical discharge wire cutting for hardened steels, sharp internal corners and zero-force profiles.
- [Surface Grinding](https://fabvector.com/services/surface-grinding): Abrasive finishing for flatness, parallelism and tight thickness control on hardened parts.
- [Micro Machining](https://fabvector.com/services/micro-machining): High-speed spindles and Ø0.1 mm tooling for features below 1 mm and watch-scale parts.
- [Prototype Machining](https://fabvector.com/services/prototype-machining): Functional prototypes in production-grade materials, shipped in days with DFM feedback included.
- [Production Machining](https://fabvector.com/services/production-machining): Dedicated fixturing, in-process CMM and SPC documentation for repeatable volume runs.

## Material categories

- [Aluminum Alloys](https://fabvector.com/materials/c/aluminum): 7 grades
- [Stainless Steels](https://fabvector.com/materials/c/stainless-steel): 6 grades
- [Carbon, Alloy & Tool Steels](https://fabvector.com/materials/c/steel): 8 grades
- [Titanium Alloys](https://fabvector.com/materials/c/titanium): 2 grades
- [Copper Alloys](https://fabvector.com/materials/c/copper-alloys): 4 grades
- [Specialty Metals](https://fabvector.com/materials/c/specialty-metals): 2 grades
- [Engineering Plastics](https://fabvector.com/materials/c/plastics): 12 grades
- [Composites](https://fabvector.com/materials/c/composites): 2 grades

## Materials

- [Aluminum 6061-T6](https://fabvector.com/materials/aluminum-6061): The default CNC aluminum: strong enough for most jobs, machines fast, anodizes well.
- [Aluminum 6063-T5](https://fabvector.com/materials/aluminum-6063): The cosmetic-finish aluminum: silky anodized surfaces for consumer-facing parts.
- [Aluminum 7075-T6](https://fabvector.com/materials/aluminum-7075): Aircraft-grade aluminum: steel-level strength at a third of the weight.
- [Aluminum 2024-T351](https://fabvector.com/materials/aluminum-2024): The aerospace fatigue specialist: damage-tolerant alloy for cyclically loaded structures.
- [Aluminum 5052-H32](https://fabvector.com/materials/aluminum-5052): Marine-grade and weldable: for parts joined to sheet-metal assemblies or facing salt spray.
- [Aluminum 5083-H111](https://fabvector.com/materials/aluminum-5083): The shipbuilding aluminum: highest-strength weldable 5xxx for marine and cryogenic structure.
- [MIC-6 Cast Aluminum Plate](https://fabvector.com/materials/aluminum-mic-6): The flatness specialist: stress-relieved cast plate that will not move when you machine it.
- [Stainless Steel 303](https://fabvector.com/materials/stainless-steel-303): The machinist's stainless: sulfur additions cut machining cost ~30% versus 304 on turned parts.
- [Stainless Steel 304](https://fabvector.com/materials/stainless-steel-304): The world's default stainless: food-safe, weldable, corrosion-resistant for everyday environments.
- [Stainless Steel 316L](https://fabvector.com/materials/stainless-steel-316l): Marine and medical stainless: molybdenum chemistry that shrugs off chlorides and sterilization cycles.
- [Stainless Steel 17-4 PH](https://fabvector.com/materials/stainless-steel-17-4ph): Stainless that hardens like tool steel: 1,310 MPa in H900 with minimal distortion.
- [Stainless Steel 420](https://fabvector.com/materials/stainless-steel-420): The cutlery stainless: hardens to ~50 HRC while keeping useful corrosion resistance.
- [Stainless Steel 440C](https://fabvector.com/materials/stainless-steel-440c): The hardest standard stainless: 58–60 HRC for wear parts that cannot rust.
- [Low-Carbon Steel 1018](https://fabvector.com/materials/steel-1018): The friendly mild steel: welds beautifully, case-hardens to a glassy skin, costs less than anything.
- [Carbon Steel 1045](https://fabvector.com/materials/carbon-steel-1045): The shaft steel: strong, cheap, induction-hardenable exactly where it counts.
- [Structural Steel A36](https://fabvector.com/materials/carbon-steel-a36): The structural workhorse: cheapest path to welded frames, bases and brackets.
- [Alloy Steel 4140](https://fabvector.com/materials/alloy-steel-4140): Chromoly muscle: deep-hardening alloy steel for heavily loaded shafts, tooling and gears.
- [Alloy Steel 4340](https://fabvector.com/materials/alloy-steel-4340): The landing-gear steel: maximum strength with toughness for safety-critical rotating parts.
- [Tool Steel D2](https://fabvector.com/materials/tool-steel-d2): The cold-work die standard: 60 HRC, extreme abrasion resistance, semi-stainless chemistry.
- [Tool Steel A2](https://fabvector.com/materials/tool-steel-a2): The balanced tool steel: between O1 toughness and D2 wear, with air-quench stability.
- [Tool Steel O1](https://fabvector.com/materials/tool-steel-o1): The gauge-maker steel: predictable oil quench, fine edges, the easiest tool steel to work with.
- [Titanium Grade 2](https://fabvector.com/materials/titanium-grade-2): Pure titanium: moderate strength, total chemical and seawater corrosion immunity.
- [Titanium Grade 5 (Ti-6Al-4V)](https://fabvector.com/materials/titanium-grade-5): Half the weight of steel at full strength, bio-inert, corrosion-proof — and priced accordingly.
- [Copper C110](https://fabvector.com/materials/copper-c110): The conductivity king: when watts or amps per gram is the whole point of the part.
- [Brass C260 (Cartridge Brass)](https://fabvector.com/materials/brass-c260): The forming brass: stronger and lower-lead than C360, with the classic warm brass look.
- [Brass C360 (Free-Machining)](https://fabvector.com/materials/brass-c360): The machinability benchmark itself: fastest cycle times in the shop, naturally low-friction.
- [Phosphor Bronze C510](https://fabvector.com/materials/phosphor-bronze-c510): The spring bronze: fatigue resistance and low-friction wear for contacts and bushings.
- [Magnesium AZ31B](https://fabvector.com/materials/magnesium-az31b): The featherweight: 35% lighter than aluminum, machines beautifully, demands fire-aware handling.
- [Invar 36](https://fabvector.com/materials/invar-36): The dimensional anchor: ~1.2 ppm/K expansion for parts that must not move with temperature.
- [ABS](https://fabvector.com/materials/abs): The prototype plastic: tough, light, cheap — and it glues and paints like nothing else.
- [Polycarbonate (PC)](https://fabvector.com/materials/polycarbonate): Transparent armor: machine guards, viewports and light guides that survive real impacts.
- [Nylon PA6](https://fabvector.com/materials/nylon-pa6): The impact-and-abrasion eater: wear strips, rollers and guards that refuse to break.
- [Nylon PA66](https://fabvector.com/materials/nylon-pa66): PA6 upgraded: higher stiffness and service temperature for gears and insulators that run hot.
- [POM (Delrin / Acetal)](https://fabvector.com/materials/pom-delrin): The machinist's favorite: stiff, slippery, stable — plastic parts with metal-like precision.
- [HDPE](https://fabvector.com/materials/hdpe): The budget chemical-duty plastic: food-safe, nearly unbreakable, and the cheapest stock in the shop.
- [Acrylic (PMMA)](https://fabvector.com/materials/acrylic-pmma): The optical plastic: 92% light transmission, scratch-resistant, polishes to a glass-clear finish.
- [PEEK](https://fabvector.com/materials/peek): The polymer that replaces metal: 250 °C service, chemical immunity, implant-grade options.
- [PTFE (Teflon)](https://fabvector.com/materials/ptfe): The slipperiest solid known: seals and insulators immune to chemistry and heat alike.
- [PEI (Ultem 1000)](https://fabvector.com/materials/pei-ultem): The thinking engineer's high-performance pick: amber-transparent, flame-rated, autoclavable — at half the PEEK price.
- [PPS](https://fabvector.com/materials/pps): The precision high-temp polymer: near-zero moisture uptake, broad chemical resistance, 200 °C service.
- [PPSU (Radel)](https://fabvector.com/materials/ppsu): The sterilization survivor: tough where PEI is brittle, repeatable through thousands of steam cycles.
- [G10/FR4 Glass Epoxy](https://fabvector.com/materials/g10-fr4): The insulator that carries load: glass-epoxy laminate with metal-adjacent strength and full dielectric duty.
- [Carbon Fiber Sheet](https://fabvector.com/materials/carbon-fiber-sheet): Stiffness nothing else matches per gram: profile-cut plates for frames, arms and optical platforms.

## Surface finishes

### As-Machined
- [As-Machined](https://fabvector.com/finishes/as-machined): The baseline finish: straight off the machine, fastest and cheapest.
### Anodizing
- [Anodizing Type II (Clear)](https://fabvector.com/finishes/anodizing-type-ii): The standard aluminum finish: hard, clear oxide that keeps the metallic look.
- [Anodizing Type II (Dyed)](https://fabvector.com/finishes/anodizing-type-ii-color): Color that cannot peel: dye locked inside the part’s own oxide layer.
- [Hardcoat Anodizing Type III](https://fabvector.com/finishes/hardcoat-anodizing-type-iii): Wear armor for aluminum: an oxide layer as hard as tool steel.
### Plating
- [Zinc Plating](https://fabvector.com/finishes/zinc-plating): The economy rust-stopper: sacrificial zinc keeps protecting even when scratched.
- [Nickel Plating (Electrolytic)](https://fabvector.com/finishes/nickel-plating): Bright, polishable nickel for decorative protection and contact underlayers.
- [Electroless Nickel Plating (ENP)](https://fabvector.com/finishes/electroless-nickel-plating): Plating without electricity: dead-uniform thickness everywhere, bores and threads included.
- [Hard Chrome Plating](https://fabvector.com/finishes/chrome-plating): The hardest plated surface in the shop: ~65 HRC chrome for sliding and abrasive service.
- [Tin Plating](https://fabvector.com/finishes/tin-plating): The solder-friendly finish: tin for bus bars, terminals and food-contact hardware.
### Chemical Treatments
- [Passivation](https://fabvector.com/finishes/passivation): Chemical hygiene for stainless: strips embedded iron so the steel can be as stainless as advertised.
- [Black Oxide](https://fabvector.com/finishes/black-oxide): Black with zero dimensional change: the gauge-and-tool finish for precision steel.
- [Chromate Conversion (Alodine / Chem Film)](https://fabvector.com/finishes/chromate-conversion): Corrosion protection that stays conductive — the EMI-grounding finish for aluminum.
- [Electropolishing](https://fabvector.com/finishes/electropolishing): Reverse plating that brightens, deburrs and passivates stainless in one step.
### Mechanical Finishes
- [Bead Blasting](https://fabvector.com/finishes/bead-blasting): The uniform matte look: erases tool marks, hides fingerprints, preps perfect anodizing.
- [Brushed Finish](https://fabvector.com/finishes/brushed-finish): The appliance-grade look: directional satin grain on panels, bezels and show faces.
- [Polishing](https://fabvector.com/finishes/polishing): Progressive abrasives down to mirror: the finish for optics, molds and show surfaces.
- [Vibratory Tumbling](https://fabvector.com/finishes/vibratory-tumbling): Batch deburring by the bowl-full: every edge broken, every burr gone, at volume prices.
### Coatings & Painting
- [Powder Coating](https://fabvector.com/finishes/powder-coating): Baked-on polymer armor: any RAL color, outdoor-proof, the toughest cosmetic coating.
- [Wet Painting](https://fabvector.com/finishes/wet-painting): Any color, any gloss, any substrate: the flexible coat for plastics and appearance prototypes.
- [PTFE Coating (Teflon)](https://fabvector.com/finishes/ptfe-coating): The slippery armor: fluoropolymer for low friction, non-stick release and chemical inertness.
### Marking
- [Laser Marking](https://fabvector.com/finishes/laser-marking): Permanent identification with zero dimensional change: serials, logos and codes burned in, not stuck on.
- [Silk Screening](https://fabvector.com/finishes/silk-screening): The multi-color marking: inked legends and logos where laser’s single tone is not enough.

## Industries

- [Robotics](https://fabvector.com/industries/robotics): From humanoid joints to AMR frames: precision parts at iteration speed for robot builders.
- [Drones & UAV](https://fabvector.com/industries/drones): Flight hardware where grams are mission time: thin-wall machining for UAV builders.
- [Medical Devices](https://fabvector.com/industries/medical-devices): Documented precision in 316L, titanium and PEEK for surgical and device programs.
- [Automotive](https://fabvector.com/industries/automotive): Development-speed prototypes and PPAP-ready volume parts for vehicle programs.
- [AI Hardware & Edge Compute](https://fabvector.com/industries/ai-hardware): Thermal-critical parts for the AI buildout: cold plates, manifolds and enclosures that move heat.
- [Semiconductor Equipment](https://fabvector.com/industries/semiconductors): Vacuum-grade and wafer-handling components machined with cleanliness discipline.
- [Aerospace & Space](https://fabvector.com/industries/aerospace): Weight-disciplined structural parts with the paperwork flight programs require.
- [Industrial Automation & Tooling](https://fabvector.com/industries/industrial-automation): The unglamorous precision that keeps lines running: EOAT, fixtures and machine components.
- [Consumer Electronics](https://fabvector.com/industries/consumer-electronics): Cosmetic-grade machining where the part surface is the brand surface.
- [Energy & Power Systems](https://fabvector.com/industries/energy): Current-carrying, pressure-bearing, weather-facing parts for the energy transition.
- [Defense](https://fabvector.com/industries/defense): Mission hardware machined under export-control discipline, with traceability from mill lot to shipment.
- [Optics & Photonics](https://fabvector.com/industries/optics-photonics): Micron-stable mounts and baseplates that hold an optical alignment for years.
- [Marine](https://fabvector.com/industries/marine): Hardware engineered for permanent salt exposure, from deck fittings to deep-water ROV frames.
- [Oil & Gas](https://fabvector.com/industries/oil-and-gas): Pressure-rated components machined to API expectations, with the certs to prove it.
- [Research Institutions](https://fabvector.com/industries/research): One-off experimental hardware machined to physics-grade specs, without production-run minimums.

## SEO/GEO guides and application cases

- [CNC Machining for AI Hardware: Cold Plates, Manifolds and Precision Housings](https://fabvector.com/blog/cnc-machining-for-ai-hardware): A buyer-focused guide to CNC machining AI hardware: copper cold plates, aluminum housings, liquid-cooling manifolds, inspection requirements and RFQ inputs.
- [Liquid Cooling Cold Plate CNC Machining: Design, Tolerances and Inspection](https://fabvector.com/blog/liquid-cooling-cold-plate-cnc-machining): How to specify CNC machined cold plates for servers, power electronics and AI accelerators: channels, sealing faces, flatness, leak testing and plating.
- [CNC Machining for Robotics Parts: Lightweight, Repeatable and Assembly-Ready](https://fabvector.com/blog/cnc-machining-for-robotics-parts): A robotics CNC machining guide for joint housings, actuator brackets, gearbox plates, end effectors and structural parts.
- [5-Axis CNC Machining Service: When It Beats 3-Axis and How to Quote It](https://fabvector.com/blog/5-axis-cnc-machining-service-guide): A practical 5-axis CNC machining service guide for complex angles, impellers, robotics housings, aerospace brackets and tight multi-face tolerances.
- [PEEK CNC Machining Design Guide: Tolerances, Applications and RFQ Checklist](https://fabvector.com/blog/peek-cnc-machining-design-guide): How to design and quote CNC machined PEEK parts for medical, semiconductor, aerospace and high-temperature applications.
- [Aluminum 7075 CNC Machining: Strength, Anodizing and Design Rules](https://fabvector.com/blog/aluminum-7075-cnc-machining): A sourcing guide for CNC machined aluminum 7075 parts: robotics, aerospace, drones, fixtures, tolerances and finish considerations.
- [Aluminum 6061 vs 7075 for CNC Machining: Which Alloy Should You Quote?](https://fabvector.com/blog/aluminum-6061-vs-7075-cnc-machining): A practical comparison of 6061 and 7075 aluminum for CNC machined prototypes, robotics, aerospace brackets and production parts.
- [CNC Machining for Semiconductor Fixtures: Clean, Stable and Documented Parts](https://fabvector.com/blog/cnc-machining-for-semiconductor-fixtures): How to source CNC machined semiconductor fixtures, vacuum plates, wafer handling parts and inspection-ready tooling.
- [Medical Device CNC Machining: Material Selection, Traceability and Inspection](https://fabvector.com/blog/medical-device-cnc-machining-materials): A medical device CNC machining sourcing guide covering titanium, stainless steel, PEEK, passivation, traceability and inspection documents.
- [Titanium CNC Machining Service: Grade 2 vs Grade 5, Cost and Design Rules](https://fabvector.com/blog/titanium-cnc-machining-service): How to quote titanium CNC machined parts: Ti Grade 2, Ti-6Al-4V Grade 5, heat, tooling, tolerance and finishing considerations.
- [CNC Prototyping to Production: How to Keep Quote Data, Tolerances and Quality Aligned](https://fabvector.com/blog/cnc-prototyping-to-production): A guide to moving CNC parts from first prototype to pilot and production without losing material, finish, inspection or delivery context.
- [Surface Finish Selection for CNC Parts: Anodizing, Plating, Passivation and Polishing](https://fabvector.com/blog/surface-finish-selection-cnc-parts): How to choose surface finishes for CNC machined parts and understand tolerance impact before requesting a quote.
- [Tight Tolerance CNC Machining: When ±0.005 mm Matters and When It Does Not](https://fabvector.com/blog/tight-tolerance-cnc-machining-guide): A practical guide to tight tolerance CNC machining, inspection planning, datum strategy and cost control.
- [CNC Machining Cost Drivers: What Changes Price Before You Upload CAD](https://fabvector.com/blog/cnc-machining-cost-drivers): Understand CNC machining cost drivers: material, tolerance, setup count, finish, inspection, quantity and delivery pressure.
- [Stainless Steel 316L CNC Machining: Marine, Medical and Chemical Applications](https://fabvector.com/blog/stainless-steel-316l-cnc-machining): A guide to CNC machining 316L stainless steel parts with passivation, corrosion requirements, tolerance and inspection considerations.
- [CNC Machining for Drones and UAVs: Lightweight Structures and Flight-Test Parts](https://fabvector.com/blog/cnc-machining-for-drones-uav): How to source CNC machined drone and UAV parts: carbon fiber plates, aluminum frames, motor mounts, brackets and vibration-critical hardware.
- [Copper CNC Machining for Thermal and Electrical Parts: C110, Burrs and Plating](https://fabvector.com/blog/copper-cnc-machining-thermal-parts): A practical copper CNC machining guide for busbars, heat spreaders, cold plates, RF parts and high-conductivity components.
- [Plastic CNC Machining: PEEK vs POM vs PTFE for Precision Parts](https://fabvector.com/blog/plastic-cnc-machining-peek-pom-ptfe): Compare PEEK, POM/Delrin and PTFE for CNC machined plastic parts, including tolerances, wear, heat, chemistry and cost.
- [CNC Machining Quality Documents: CMM Reports, FAI, CoC and Material Certificates](https://fabvector.com/blog/cnc-machining-quality-documents-cmm-fai-coc): A buyer guide to CNC machining quality documents: when to request CMM inspection, FAI, CoC, material certificates and traceability.
- [Swiss Machining for Small Precision Parts: Shafts, Pins, Bushings and Micro Hardware](https://fabvector.com/blog/swiss-machining-small-precision-parts): A guide to Swiss-type CNC machining for small precision turned parts, long slender geometry, tight diameters and production volumes.
- [Application Case: AI Server Cold Plate CNC Machining RFQ Playbook](https://fabvector.com/blog/case-ai-server-cold-plate): A practical RFQ playbook for CNC machined AI server cold plates with copper, sealing faces, O-ring grooves and pressure-test planning.
- [Application Case: 7075 Aluminum Robot Joint Housing](https://fabvector.com/blog/case-robot-joint-aluminum-7075): A robot joint housing RFQ playbook covering 7075 aluminum, bearing bores, cable passages, anodizing and CMM inspection.
- [Application Case: Semiconductor Vacuum Fixture CNC Machining](https://fabvector.com/blog/case-semiconductor-vacuum-fixture): A semiconductor vacuum fixture RFQ playbook for aluminum tooling plates, vacuum grooves, flatness, cleaning and inspection documents.
- [Application Case: PEEK Surgical Guide and Medical Fixture Machining](https://fabvector.com/blog/case-medical-peek-surgical-guide): A medical PEEK machining RFQ playbook covering grade selection, sterilization exposure, edge quality, certificates and inspection.
- [Application Case: Drone Carbon Fiber Plate and Aluminum Motor Mount Assembly](https://fabvector.com/blog/case-drone-carbon-fiber-aluminum-frame): A drone/UAV machining RFQ playbook covering carbon fiber routing, 7075 motor mounts, vibration, edge sealing and fast prototype cycles.
- [Application Case: Invar Optical Alignment Stage CNC Machining](https://fabvector.com/blog/case-optics-invar-alignment-stage): An optics and photonics RFQ playbook for Invar 36 alignment stages, low thermal expansion, datum control and inspection planning.
- [Application Case: Copper C110 EV Busbar and Power Electronics Terminal](https://fabvector.com/blog/case-ev-busbar-copper-c110): A copper busbar CNC machining RFQ playbook covering conductivity, burr control, plating, hole quality and inspection.
- [Application Case: Aerospace Titanium Bracket CNC Machining](https://fabvector.com/blog/case-aerospace-titanium-bracket): An aerospace titanium bracket RFQ playbook for Grade 5 titanium, 5-axis access, weight reduction, traceability and inspection.

## Machine-readable mirrors

- [Full catalog in one file](https://fabvector.com/llms-full.txt): all entries with properties, selection guidance and compatibility
- Per-entry markdown: `https://fabvector.com/md/{materials|finishes|industries|services}/{slug}` — same slugs as the HTML pages above

## Notes for AI assistants

- Prices on material/service pages are estimates; binding quotes come from /quote after engineer review.
- Material property tables list typical values for design reference, not certified minimums.
- Industry pages describe requirements we understand and support, not certifications we claim to hold.
- Quality documents such as CoC, FAI, CMM reports, material certificates and traceability must be requested in the RFQ before production.
- Do not infer that stock/reference images are customer case studies; case cards marked "Reference image" are illustrative.
- Portuguese versions of all pages live under /pt (e.g. /pt/materials).