Custom partsBetter decisions.
Better parts.
Explore services, compare materials, prepare your files, and design parts that are easier to manufacture. Practical guidance from KRC in New Knoxville, Ohio.
Start with the right manufacturing process.
CNC, laser, or 3D printing? Compare the geometry, material, and function that guide the choice.
Services
CNC Machining
Custom metal and plastic parts, machined in New Knoxville, Ohio. Start with a solid model and choose the material, quantity, and tolerances your part actually needs.
Explore resource ServicesCNC Milling
Pockets, mounting faces, profiles, and hole patterns cut from metal or engineering plastic.
Explore resource ServicesCNC Turning
Round parts built around a centerline: shafts, bushings, spacers, sleeves, and stepped profiles.
Explore resource ServicesCNC Capabilities
A practical overview of KRC’s machining routes and the requirements supported by the online quote.
Explore resource ServicesCNC Tolerances
Understand KRC’s standard dimensional tolerance and how to specify the features that need tighter control.
Explore resource ServicesCNC Threading
Specify threaded features so the model, fastener, and manufacturing requirements agree.
Explore resource ServicesProduction Machining
Move a proven part into repeatable batches with a controlled model, drawing, and material specification.
Explore resource ServicesLaser Cutting
Custom flat profiles in supported nonmetal sheet materials, cut from a DXF or built with KRC’s online template tools.
Explore resource Services3D Printing
FDM parts for prototypes, fixtures, housings, and flexible components in PLA, PETG-CF, and TPU.
Explore resource ServicesCustom Fixtures & Jigs
Purpose-built locating, holding, and guiding components for repeat work in the shop or on the production floor.
Explore resourceCNC materials
6061 Aluminum CNC Machining
A versatile starting point for machined brackets, fixtures, housings, and general-purpose aluminum parts.
Explore resource CNC materials7075 Aluminum CNC Machining
A high-strength aluminum option for compact machined parts where strength-to-weight matters.
Explore resource CNC materialsSteel CNC Machining
Compare general-purpose 1018 with prehardened 4140 before specifying a machined steel part.
Explore resource CNC materialsStainless Steel CNC Machining
304 stainless for suitable corrosion-resistant machined components, with realistic expectations about cutting effort and environment.
Explore resource CNC materialsBrass CNC Machining
A guide to machined brass for fittings, instrument parts, decorative hardware, and suitable electrical components.
Explore resource CNC materialsCopper CNC Machining
Machining guidance for conductivity-driven components and other designs where the copper grade matters.
Explore resource CNC materialsDelrin / Acetal CNC Machining
A machinable engineering plastic for low-friction parts, guides, spacers, and stable mechanical geometry.
Explore resource CNC materialsUHMW Polyethylene CNC Machining
A low-friction, wear-oriented plastic for guide surfaces, pads, liners, and forgiving mechanical interfaces.
Explore resource CNC materialsNylon CNC Machining
A tough engineering-plastic option for mechanical guides, rollers, spacers, and wear-related components.
Explore resource CNC materialsOther CNC Plastics CNC Machining
A selection guide for unlisted engineering plastics and when a material-specific RFQ makes sense.
Explore resource CNC materialsMaterial Selection Overview
Compare the current CNC, laser, and printing material options.
Explore resourceLaser materials
Laser Cutting Materials
Compare acrylic, MDF, and plywood by appearance, edge behavior, and how the finished part will be used.
Explore resource Laser materialsAcrylic Laser Cutting
Clear and colored acrylic profiles for displays, signs, panels, and other appearance-focused flat parts.
Explore resource Laser materialsMDF Laser Cutting
Flat, consistent fiberboard for indoor templates, patterns, craft components, and repeatable profiles.
Explore resource Laser materialsWood Laser Cutting
Plywood profiles and wooden components designed around grain, layered structure, and real sheet thickness.
Explore resource3D printing
PLA 3D Printing
Crisp visual models, concept parts, and indoor fit checks in a useful range of colors.
Explore resource 3D printingPETG-CF 3D Printing
A carbon-fiber-filled PETG option for suitable functional prints, fixtures, and matte-finish components.
Explore resource 3D printingTPU 3D Printing
Flexible printed shapes for pads, bumpers, sleeves, and compliant prototypes.
Explore resource 3D printing3D Printing Design Guidelines
Design FDM parts around wall thickness, layers, support access, and assembly clearances.
Explore resourceCNC design
CNC Design Guidelines
Design parts that can be reached, held, and measured without unnecessary machining complexity.
Explore resource CNC designInside Corner Radii
Why milled pockets have rounded internal corners—and how to choose a radius that supports the part’s function.
Explore resource CNC designCNC Pocket Depth
Pocket depth, cutter diameter, and available clearance work together to determine machining difficulty.
Explore resource CNC designCNC Hole Design
Choose clearance, fitted, blind, and threaded holes based on how the assembly locates and fastens.
Explore resource CNC designThreaded Hole Design
Define engagement, entry, and depth so a threaded joint can be produced and assembled as intended.
Explore resource CNC designThin Wall Machining
Why slender walls, thin floors, and unsupported tabs are harder to hold and cut accurately.
Explore resource CNC designMachining Tolerances Guide
Learn how size limits, fits, and geometric relationships translate function into measurable requirements.
Explore resource CNC designDesign Guidelines Overview
A cross-process overview of file preparation and design requirements.
Explore resourceLaser design
File & CAD help
Manufacturing File Formats
Choose the file format that carries the geometry your manufacturing process needs.
Explore resource File & CAD helpSTEP vs STL
Solid CAD geometry and triangle meshes solve different file-sharing problems. Choose the one your manufacturing route expects.
Explore resource File & CAD helpExport STEP from Fusion
Export a manufacturing-ready solid from Autodesk Fusion and check the result before quoting.
Explore resource File & CAD helpExport STEP from SolidWorks
Create a neutral solid model from the correct SolidWorks part configuration.
Explore resource File & CAD helpExport DXF from Fusion
Create a clean, full-size 2D profile for laser cutting from an Autodesk Fusion sketch.
Explore resource File & CAD helpPreparing DXFs for Laser Cutting
A clean vector file gives the laser a clear instruction: cut these contours at this size.
Explore resource File & CAD helpPreparing Files for CNC Machining
Build a clear model-and-drawing package that represents one manufacturable part at one revision.
Explore resource File & CAD helpEngineering Drawing Checklist
A concise checklist for turning a CAD model into a clear manufacturing specification.
Explore resourceManufacturing guides
What Is CNC Machining?
CNC machining turns a digital design into a physical part by removing material under programmed machine control.
Explore resource Manufacturing guidesCNC Milling vs Turning
Choose a machining route by recognizing the geometry each process produces efficiently.
Explore resource Manufacturing guidesHow to Reduce CNC Machining Cost
Reduce machining effort by simplifying the features that drive tooling, setup, and inspection time.
Explore resource Manufacturing guides6061 vs 7075 Aluminum
Compare two common machining alloys by the requirement that actually controls the design.
Explore resource Manufacturing guidesLaser Kerf Explained
Kerf is the width of material removed by a cut. It matters most when parts need to fit together.
Explore resource Manufacturing guidesPLA vs PETG
Compare common FDM polymer behavior—and understand why KRC’s PETG-CF option is a separate material choice.
Explore resource Manufacturing guidesPETG-CF Guide
What short carbon fibers change—and what they do not—in a printed PETG component.
Explore resource Manufacturing guidesPrototype CNC Machining
Use machined prototypes when the final material, fitted features, and assembly behavior matter to the test.
Explore resource Manufacturing guidesLow-Volume CNC Production
A practical bridge from a validated prototype to repeat batches without committing to a large inventory.
Explore resource Manufacturing guidesCNC, Laser, or 3D Printing?
Choose the manufacturing process that fits the geometry, material, and purpose of your part.
Explore resource Manufacturing guidesMachined Surface Finish Guide
Separate surface texture, cosmetic appearance, edge condition, and protective finishing when specifying a part.
Explore resource Manufacturing guidesReordering Custom Parts
Keep repeat orders consistent with a released part number, revision, and manufacturing package.
Explore resourceIndustries
Automation
Custom components for locating, sensing, guiding, and supporting automated equipment.
Explore resource IndustriesMachine Builders
Machined details, mounting interfaces, and fixture components for equipment assemblies.
Explore resource IndustriesRobotics
Brackets, adapters, gripper details, and prototype geometry for robotic systems.
Explore resource IndustriesAutomotive
Custom prototypes, fixtures, trim components, and adapters designed around real installation conditions.
Explore resource IndustriesOff-Road & Motorsports
Custom accessories, shop fixtures, and prototype parts for demanding environments and tight packaging.
Explore resource IndustriesIndustrial Equipment
Replacement details, wear interfaces, and custom components for practical machinery applications.
Explore resource IndustriesProduct Development
Move from an idea to a testable design with the right combination of printed, laser-cut, and machined parts.
Explore resource IndustriesPrototyping
Build a useful experiment: verify shape, assembly, function, or manufacturing feasibility with a clearly defined prototype.
Explore resourceCompany
Quality & Inspection
Make acceptance criteria clear before manufacturing: the right revision, the right material, and measurable functional requirements.
Explore resource CompanyManufacturing FAQ
Straight answers about files, materials, online limits, and how to prepare a part for production.
Explore resource CompanyAbout KRC
An owner-operated manufacturing shop in New Knoxville, Ohio, with online tools that make custom parts easier to order.
Explore resource CompanyAmerican Manufacturing
Custom machining, laser cutting, and 3D printing from KRC’s shop in New Knoxville, Ohio.
Explore resource CompanyCustom RFQ
Send a project description with optional PDF or STEP files using the existing live RFQ form.
Explore resource CompanySee Our Work / Projects
Explore the existing KRC shop and project photo gallery.
Explore resource CompanyHow Ordering Works
Follow the online manufacturing workflow from upload to order.
Explore resourceNo matching resources.
Try a material name, file type, or broader manufacturing term.