From CNC machining to 3D printing, sheet metal to injection molding — post your job and get competitive bids from human-verified US-owned manufacturers.
Every category below is staffed by real, verified American manufacturers. Not overseas brokers with a US address.
Computer Numerical Control (CNC) machining uses programmed computer controls to operate cutting tools and shape materials with high precision. It's the backbone of modern manufacturing — used for everything from aerospace components to medical devices to automotive parts. CNC includes milling, turning, drilling, grinding, and multi-axis operations.
Common materials: Aluminum (6061, 7075), Stainless Steel (303, 304, 316), Titanium, Brass, Copper, Delrin, PEEK, Nylon, Polycarbonate
Typical tolerances: ±0.001" to ±0.005" depending on material and geometry
Best for: Precision parts, prototypes, low-to-medium volume production, tight-tolerance components, functional metal and plastic parts
Post a CNC Job Find CNC ShopsAdditive manufacturing builds parts layer by layer from digital files. Technologies include FDM (Fused Deposition Modeling), SLA (Stereolithography), SLS (Selective Laser Sintering), DMLS (Direct Metal Laser Sintering), and more. 3D printing excels at complex geometries, rapid prototyping, and parts that would be difficult or impossible to machine traditionally.
Common materials: PLA, ABS, PETG, Nylon, PEEK, ULTEM, TPU, Carbon Fiber composites, Stainless Steel (DMLS), Titanium (DMLS), Resin (SLA)
Technologies: FDM, SLA/DLP, SLS, MJF, DMLS/SLM, Binder Jetting
Best for: Prototyping, complex geometries, low-volume production, custom one-offs, tooling, jigs and fixtures, end-use high-performance parts (PEEK, ULTEM)
Post a 3D Printing Job Find 3D Printing ShopsSheet metal fabrication transforms flat metal sheets into parts and assemblies through cutting, bending, forming, and joining. Processes include laser cutting, waterjet cutting, plasma cutting, press brake bending, stamping, and welding. It's essential for enclosures, brackets, chassis, panels, and structural components.
Common materials: Steel (mild, galvanized, stainless), Aluminum, Copper, Brass, Titanium
Processes: Laser cutting, waterjet, plasma, press brake, punching, stamping, roll forming
Best for: Enclosures, brackets, panels, structural parts, HVAC components, electronic chassis, architectural metalwork
Post a Sheet Metal Job Find Sheet Metal ShopsInjection molding forces molten material (usually plastic) into a mold cavity where it cools and solidifies into the final part shape. It's the gold standard for high-volume plastic part production, delivering consistent quality at scale. The process requires tooling (molds), which represents an upfront investment, but per-unit costs drop significantly at volume.
Common materials: ABS, Polypropylene, Polyethylene, Nylon, Polycarbonate, Acetal, TPE, PEEK, PEI
Considerations: Tooling lead time (4-12 weeks typical), minimum order quantities vary, design for manufacturability (DFM) review recommended
Best for: High-volume production, consumer products, medical devices, automotive components, electronic housings, packaging
Post an Injection Molding Job Find Injection Molding ShopsWelding joins metals together through fusion — using heat, pressure, or both. Common welding methods include MIG (GMAW), TIG (GTAW), stick (SMAW), and spot welding. Assembly services combine welded and non-welded components into finished products or subassemblies, often including hardware installation, testing, and quality inspection.
Processes: MIG, TIG, Stick, Spot, Laser welding, Robotic welding, Brazing, Soldering
Certifications to look for: AWS D1.1 (structural steel), AWS D1.2 (aluminum), ASME Section IX (pressure vessels)
Best for: Structural fabrication, pipe and tube assemblies, frames, machine bases, repair work, custom assemblies
Post a Welding Job Find Welding ShopsCasting pours molten material into a mold and allows it to solidify, creating parts with complex internal geometries. Forging uses compressive force to shape metal, producing parts with superior strength and grain structure. Both processes are fundamental to heavy industry, aerospace, automotive, and defense manufacturing.
Casting types: Sand casting, investment casting (lost wax), die casting, permanent mold, centrifugal casting
Forging types: Open die, closed die (impression), rolled ring, seamless rolled ring
Best for: Complex shapes (casting), high-strength components (forging), large parts, production volumes from prototype to high-volume
Post a Casting/Forging Job Find Casting ShopsSurface finishing processes improve the appearance, durability, and corrosion resistance of manufactured parts. Powder coating applies a dry powder electrostatically and cures it with heat. Anodizing creates a protective oxide layer on aluminum. Plating deposits a thin metal layer for conductivity, wear resistance, or aesthetics.
Processes: Powder coating, anodizing (Type II, Type III), electroplating (nickel, chrome, zinc, gold), passivation, bead blasting, tumbling, painting, cerakote
Best for: Corrosion protection, aesthetic improvement, wear resistance, electrical conductivity, medical device finishing, military/defense coatings
Post a Finishing Job Find Finishing ShopsPrototyping bridges the gap between design and production. Rapid prototyping uses 3D printing, CNC machining, urethane casting, and other fast-turnaround methods to produce functional prototypes for testing, validation, and iteration. Rapid manufacturing extends this to short-run production using the same technologies.
Methods: 3D printing (all technologies), CNC prototyping, urethane casting, vacuum forming, rapid tooling, bridge production
Typical lead times: 1-5 days for 3D printed prototypes, 5-15 days for CNC prototypes, 2-4 weeks for cast urethane
Best for: Product development, design validation, fit and function testing, investor demos, pre-production samples, bridge production while tooling is built
Post a Prototyping Job Find Prototyping ShopsWe don't let manufacturers self-report their location or ownership. Every listing goes through our verification process.
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