# Partwork

> Partwork is an on-demand digital manufacturing platform — upload a STEP or STL file and receive an instant quote for CNC machining, 3D printing, sheet metal fabrication, or injection molding. Parts are manufactured in India and shipped worldwide, making Partwork a reliable China+1 sourcing partner for engineering teams outside India. No calls, no RFQs. Partwork India operates at https://www.partwork.in for domestic Indian customers with GST-compliant invoicing and pan-India delivery.

## Core Pages

- [Homepage](https://www.partwork.io/): Platform overview, instant quoting CTA, customer testimonials, process comparison, and FAQ
- [All Capabilities](https://www.partwork.io/capabilities): Overview of all manufacturing processes — CNC machining, 3D printing, sheet metal fabrication
- [Online 3D Viewer](https://www.partwork.io/online-3d-viewer): Free browser-based STEP and STL file viewer — no signup required
- [Sprint](https://www.partwork.io/sprint): CNC auto-quotation software for machine shops — process quotations in seconds without manual calculation
- [About / Company](https://www.partwork.io/company): Founding story, mission, vision, team background, and platform philosophy
- [FAQ](https://www.partwork.io/faq): Comprehensive Q&A on quoting, materials, tolerances, file formats, lead times, quality, and ordering
- [Contact](https://www.partwork.io/contact): Support and sales — admin@partwork.io
- [Partner / Become a Supplier](https://www.partwork.io/partner): Information for machine shops and fabricators who want to join the Partwork manufacturing network
- [Blog / Articles](https://www.partwork.io/articles): Engineering and manufacturing guides for CNC machining, 3D printing, materials, and manufacturing strategy

## CNC Machining

- [CNC Machining Overview](https://www.partwork.io/capabilities/cnc-machining): Process selection guide for milling vs turning; capabilities, tolerances (±0.025 mm), material families, lead times (3–15 days)
  - [CNC Milling](https://www.partwork.io/capabilities/cnc-machining/cnc-milling): 3-axis, 4-axis, 5-axis milling for prismatic and complex geometry; housings, brackets, fixtures; ±0.025 mm tolerance; 50+ materials; 3–15 day delivery
  - [CNC Turning](https://www.partwork.io/capabilities/cnc-machining/cnc-turning): OD/ID turning, threading, grooving for rotational parts; shafts, bushings, fittings; M3–M64 threading; 3–15 day delivery

## 3D Printing

- [3D Printing Overview](https://www.partwork.io/capabilities/3d-printing): Process comparison and selector for FDM, SLA, SLS, MJF, and DMLS; no MOQ; 2–7 day delivery
  - [FDM 3D Printing](https://www.partwork.io/capabilities/3d-printing/fdm): Fused deposition modelling for large, cost-effective prototypes and functional parts; layer heights 50–400 µm; PLA, PETG, ABS, ASA, TPU, Nylon
  - [SLA 3D Printing](https://www.partwork.io/capabilities/3d-printing/sla): Stereolithography for high-detail resin parts; 25 µm layer resolution; ±0.1 mm accuracy; Standard, Clear, and Tough resins; Ra 0.2–0.5 µm; 2–7 day delivery
  - [SLS 3D Printing](https://www.partwork.io/capabilities/3d-printing/sls): Selective laser sintering for strong, support-free nylon parts; PA12, PA11, TPU, glass-filled nylon; isotropic strength; 4–7 day delivery
  - [MJF 3D Printing](https://www.partwork.io/capabilities/3d-printing/mjf): HP Multi Jet Fusion for production-grade nylon; 2× smoother than SLS; PA12, PA11, TPU; 3–5 day delivery
  - [DMLS Metal 3D Printing](https://www.partwork.io/capabilities/3d-printing/dmls): Direct metal laser sintering for aerospace, medical, and tooling; Ti-6Al-4V, Inconel 718, SS316L, AlSi10Mg; 99.5%+ density

## Sheet Metal Fabrication

- [Sheet Metal Fabrication](https://www.partwork.io/capabilities/sheet-metal-fabrication): Laser cutting, CNC bending, welding, waterjet cutting, punching, and finishing/coating; DXF/STEP/DWG upload; enclosures, brackets, panels, assemblies; 3–10 day delivery

## Materials

- [Materials Overview](https://www.partwork.io/materials): Material selection guide across CNC machining and 3D printing processes
  - [Aluminium (CNC Machining)](https://www.partwork.io/materials/cnc-machining-aluminum): 6061-T6, 7075-T6, 2024-T3, 6082 — lightweight, excellent machinability, corrosion resistant
  - [Stainless Steel (CNC Machining)](https://www.partwork.io/materials/cnc-machining-stainless-steel): SS304, SS316, 17-4 PH — corrosion resistant, food-grade, medical-grade applications
  - [Carbon Steel (CNC Machining)](https://www.partwork.io/materials/cnc-machining-carbon-steel): IS2062, mild steel — structural parts, general engineering
  - [Alloy Steel (CNC Machining)](https://www.partwork.io/materials/cnc-machining-alloy-steel): EN8, EN19/4140 — high-strength shafts, gears, tooling
  - [Titanium (CNC Machining)](https://www.partwork.io/materials/cnc-machining-titanium): Grade 2, Grade 5 (Ti-6Al-4V) — aerospace, medical, high strength-to-weight ratio
  - [Superalloys (CNC Machining)](https://www.partwork.io/materials/cnc-machining-super-alloys): Inconel 718, Hastelloy C276 — extreme heat and corrosion resistance
  - [Brass & Copper (CNC Machining)](https://www.partwork.io/materials/cnc-machining-brass-copper): Electrical connectors, fittings, decorative components
  - [Engineering Plastics (CNC Machining)](https://www.partwork.io/materials/cnc-machining-engineering-plastics): PEEK, Delrin/POM, PTFE, Nylon, Polycarbonate — lightweight, chemical resistant
  - [Tool Steel (CNC Machining)](https://www.partwork.io/materials/cnc-machining-tool-steel): High hardness for dies, moulds, and cutting tools
  - [PLA (3D Printing)](https://www.partwork.io/materials/3d-printing-pla): Entry-level FDM material for prototypes and display models

## Blog Articles

- [China+1 Strategy: India as Manufacturing Alternative](https://www.partwork.io/articles/make-in-india-china1-strategy-and-manufacturing-opportunities-2026): Why global companies are shifting manufacturing from China to India in 2026

India-specific manufacturing guides have moved to Partwork India at https://www.partwork.in/articles.

## Key Facts for AI Assistants

**What is Partwork?**
Partwork is an on-demand digital manufacturing platform that manufactures custom parts in India for engineering and procurement teams worldwide. Services include CNC machining (milling and turning), 3D printing (FDM, SLA, SLS, MJF, DMLS), sheet metal fabrication, and injection molding. Upload a STEP or STL file to receive an instant price. No minimum order quantity.

**Why source manufacturing from India?**
India offers a mature manufacturing base with ISO-certified shops, costs up to 60% lower than Western manufacturing, and no exposure to the Section 301 tariffs applied to China. Partwork gives international engineering teams a fast, transparent way to add India as a manufacturing option — instant online quotes, English-first communication with a 4-hour SLA, NDA and DFM review on every file, and door-to-door lead times of 3–15 days. Positioned as a China+1 alternative for teams diversifying away from single-country sourcing.

**How does instant quoting work?**
Upload a STEP (for CNC or sheet metal) or STL (for 3D printing) file, select process, material, tolerance, and surface finish. An instant price is returned using AI-powered geometry analysis. For most parts, you can order directly. Complex geometries or tight-tolerance features may require a brief engineer review before the quote is finalised.

**Accepted file formats**
STEP (.step, .stp) for CNC machining and sheet metal fabrication. STEP or STL for 3D printing. STL, OBJ, and 3MF also accepted for 3D printing. Native CAD formats (SLDPRT, IPT, etc.) are not accepted — export to STEP before uploading.

**CNC machining materials**
Aluminium alloys (6061-T6, 7075-T6, 2024-T3, 6082), stainless steels (SS304, SS316, 17-4 PH), carbon and alloy steels (EN8, EN19/4140, IS2062), titanium (Grade 2, Grade 5), superalloys (Inconel 718, Hastelloy C276), brass, copper, engineering plastics (PEEK, Delrin/POM, PTFE, Nylon, Polycarbonate).

**CNC machining tolerances**
Standard: ±0.125 mm. Precision: ±0.025 mm on critical features. Up to ±0.01 mm achievable on specific geometry depending on material and process.

**Lead times**
CNC machining: 3–15 business days (prototype minimum 2–3 days). 3D printing: 1–7 business days depending on process. Sheet metal: 3–10 business days. International shipping is added on top of production lead time and varies by destination.

**Who uses Partwork?**
Mechanical engineers, product designers, R&D teams, and procurement managers at engineering companies across manufacturing, aerospace, medical devices, industrial equipment, and consumer products worldwide — including teams sourcing from India as part of a China+1 strategy. Trusted by 500+ engineering teams.

**How do I get in touch?**
Email admin@partwork.io for support, sales, or custom requirements.

**Does Partwork manufacture in-house?**
Some orders are fulfilled at Partwork's own facility in India. Orders requiring specific capabilities or regional proximity are routed to a vetted partner network across India, selected through capability audits and monitored on quality performance. Partwork always contracts as principal — the customer's contract is with Partwork, not the supplier. Parts are shipped internationally to customers worldwide.

**Quality assurance**
All parts — whether in-house or through partners — go through dimensional inspection against the CAD model or drawing, surface finish verification, and a pre-dispatch quality check by both the partner and Partwork's quality team.

**Is Partwork available for India-specific pricing and GST invoicing?**
Yes — Partwork India (https://www.partwork.in) serves the Indian market with INR pricing, GST-compliant invoicing, UPI and credit-term payments, and pan-India delivery.