3-Axis CNC Machining
Custom aluminum and plastic parts. From prototype through small-batch production.
ncKraft provides custom 3-axis CNC machining for prototypes, replacement components, fixtures, equipment parts, and small production runs. We primarily work with aluminum, engineering plastics, brass, copper, and other suitable non-ferrous materials.
A finished CAD model is not required to begin. We can review drawings, sketches, photographs, sample parts, and early design concepts.
Practical CNC Machining for Custom Projects
CNC machining is an effective way to create accurate, durable parts directly from solid material. It is well suited for components that require mounting holes, pockets, threaded features, controlled dimensions, repeatable geometry, or reliable fit with other parts.
ncKraft focuses on practical custom machining for customers who need personal attention, design support, or production quantities that may not be well suited for a large-volume machine shop.
We support projects from early concept review through completed parts, helping identify design details that may affect machining time, material use, reliability, or cost.
A Good Fit for ncKraft
- One-off custom parts
- Functional prototypes
- Replacement components
- Fixtures and tooling aids
- Equipment brackets and mounts
- Product-development parts
- Small production runs
CNC Machining Capabilities
Our 3-axis machining services support a wide range of common part features and custom component requirements.
Pockets and Profiles
Machined pockets, recessed areas, exterior profiles, reliefs, and controlled part geometry.
Holes and Threads
Drilled holes, tapped holes, counterbores, countersinks, and accurately positioned mounting patterns.
Slots and Channels
Machined slots, grooves, channels, clearances, and access features.
Multi-Sided Parts
Parts requiring multiple setups to machine features on more than one accessible surface.
Marking and Identification
Engraved part numbers, labels, reference marks, and basic identification features.
Design-to-Part Support
Parts developed from CAD files, drawings, sketches, photographs, measurements, or sample components.
Materials We Machine
Material selection depends on the intended use, operating environment, strength requirements, appearance, and dimensional needs of the part.
Aluminum
Aluminum is lightweight, corrosion resistant, and widely used for brackets, housings, fixtures, adapters, panels, prototypes, and equipment components.
Engineering Plastics
Machined plastics are useful for lightweight parts, electrical insulation, guides, wear surfaces, spacers, enclosure components, and low-friction applications.
Brass and Copper
Brass and copper may be appropriate for conductive parts, specialty components, decorative features, bushings, fittings, and certain mechanical applications.
Other Non-Ferrous Materials
Other non-ferrous materials may be considered based on machinability, project requirements, material availability, and part geometry.
Material suitability and availability are reviewed during the quoting process. ncKraft’s standard machining focus does not include steel.
Projects That Are a Good Fit
Our machining service is especially well suited for custom projects, early-stage product development, replacement parts, and smaller production quantities that benefit from direct communication and design collaboration.
Prototypes and Product Development
Functional parts used to test fit, appearance, assembly, movement, and overall design.
Replacement and Discontinued Parts
Components recreated from samples, drawings, measurements, or available project information.
Brackets, Mounts, and Adapters
Custom hardware used to position, connect, support, or modify equipment and assemblies.
Fixtures and Fabrication Aids
Workholding tools, drill guides, assembly aids, inspection fixtures, and production-support components.
Equipment and Control Components
Parts for automation, electronics, controls, sensors, robotics, machinery, and custom equipment.
Short Production Runs
Repeatable machining of approved parts in small quantities.
From Initial Idea to Finished Part
Every project begins with understanding what the part needs to do. The process may be simple for a finished production file or more collaborative when the design is still developing.
Project Review
Send us your CAD files, drawings, sketches, photographs, sample parts, quantities, material preferences, and intended use.
Design and Manufacturability Check
We review the geometry for tool access, internal corners, hole depths, wall thickness, material selection, tolerance needs, and setup requirements.
Quote and Approval
Once the scope is understood, we provide a quote based on the design, quantity, material, machining requirements, and any requested finishing or inspection.
CAM Programming and Setup
The approved design is prepared for machining. Toolpaths, cutting operations, workholding, and part orientation are planned.
Machining and Inspection
Parts are machined and reviewed against the agreed project requirements. Key dimensions are checked using appropriate shop measurement tools.
Machining and Inspection
Parts are machined and reviewed against the agreed project requirements. Key dimensions are checked using appropriate shop measurement tools.
Finishing and Delivery
Parts are cleaned, deburred as appropriate, inspected, and prepared for pickup or delivery.
No Finished CAD Model? That Is Okay.
You do not always need a completed engineering package to begin a project.
ncKraft can help develop machinable parts from:
- Hand sketches
- Dimensioned drawings
- Existing components
- Photographs with reference measurements
- Incomplete CAD files
- Concept models
- Written functional descriptions
Design assistance may include creating or correcting a 3D model, defining important dimensions, preparing production drawings, and adjusting geometry for practical 3-axis machining.
More complex projects may require a separate paid design phase before a final machining quote can be established.
Understanding 3-Axis Machining
Three-axis CNC machining moves the cutting tool along the X, Y, and Z directions. It is highly capable, but the cutting tool must be able to physically reach each feature being machined.
Some designs may require additional setups, revised geometry, specialized tooling, or a different manufacturing process.
Usually Well Suited
- Flat and prismatic components
- Pockets and recessed areas
- Drilled and tapped holes
- Slots and channels
- Exterior profiles
- Features accessible from multiple setups
- Brackets, panels, fixtures, and housings
May Require Design Review
- Deep or narrow internal cavities
- Sharp internal corners
- Hidden undercuts
- Very thin flexible sections
- Complex geometry on many surfaces
- Features requiring simultaneous multi-axis movement
- Unnecessarily tight tolerances
We identify these concerns during project review so they can be addressed before material is cut.
Tolerances and Critical Dimensions
Not every feature requires the same level of precision. Clear identification of critical dimensions helps us focus machining and inspection effort where it matters most.
Please identify dimensions that directly affect:
- Part fit
- Alignment
- Movement
- Bearing or bushing installation
- Sealing
- Fastener location
- Assembly
- Interchangeability
Unless otherwise specified and agreed upon, parts are produced using practical machining tolerances appropriate to the design, material, and manufacturing method.
Formal inspection reports, documented dimensional results, material certifications, special surface-finish requirements, and unusually tight tolerances must be discussed before quoting.
The tighter the tolerance, the greater the effect on setup, inspection, machining time, and project cost.
From Prototype to Small-Batch Production
A successful prototype is often only the beginning.
Once a design has been tested and approved, ncKraft can support additional parts in small production quantities. Repeat production may include standardized machining operations, repeatable workholding, part identification, basic assembly, and grouped packaging.
Design improvements can also be incorporated between production runs as the product continues to develop.
- Prototype machining
- Design revisions
- Repeat production
- Part identification
- Basic assembly
- Ongoing design support
Related Services
Some projects require more than one manufacturing or design process. Explore related ncKraft services that may support your project.
CAD and Product Design
2D drawings, 3D models, assemblies, concept development, and production-ready part geometry.
CNC-Routed Panels
Large-format machining of flat plastic sheets, enclosure faces, equipment panels, and human-interface components.
Laser Cutting and Engraving
Basic marking, identification, engraving, and light cutting for suitable materials and smaller components.
Small-Batch Production and Assembly
Repeat manufacturing and basic assembly of products using machined, routed, printed, or externally sourced components.
Frequently Asked Questions
Have a Part, Sketch, or Idea to Review?
Send us the information you currently have. A finished drawing or CAD model is not required to begin the conversation.
Include any available dimensions, photographs, files, quantities, materials, and details about how the part will be used. We will review the project and help determine the most practical next step.
Your project is reviewed directly by ncKraft—from initial discussion through production.