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AUTOMOTIVE · APPLICATION REFERENCES

Automotive 3D printing:
From design validation to functional parts.

Explore practical routes for prototypes, tooling, assembly validation and complex functional components across FDM, SLA, SLS/MJF, metal AM and in-house CNC machining.

Explore 10 applications ↓Send your drawings →
FROM QUESTION TO MANUFACTURING ROUTE

Understand the part before selecting the process.

Automotive development involves different questions: appearance, fit, packaging, internal cooling or precision interfaces. CK compares suitable manufacturing routes against geometry, material, quantity, tolerance and test conditions.

These are automotive engineering application references, not disclosed CK customer projects. Final process, material, tolerance, finishing and validation requirements are confirmed against the customer drawing.

01
FDM · RAPID PROTOTYPING & PRODUCTION AIDS

Accelerate design and tooling validation.

FDM is well suited to large appearance models, assembly prototypes and custom production aids. Material and internal structure can be adapted to the intended validation task.

Automotive mirror housing prototypeAPPLICATION REFERENCE · 01
CASE 01

Aerodynamic mirror validation model

Check styling, mounting interfaces and door integration before committing to production tooling.

A full-scale FDM model allows engineering teams to compare design iterations and review fixing points, envelope and assembly clearance. Filling, sanding, painting and sealing can be added for presentation or controlled testing.

For wind-tunnel or functional use, strength, surface quality, mounting method and test conditions should be agreed before manufacture.

REVIEW BEFORE QUOTING
1:1 form and interfacesFinishing routeTest mounting method
Custom 3D printed location fixtureAPPLICATION REFERENCE · 02
CASE 02

BIW welding-line location fixture

Combine location faces, sensor mounts, handling features and identification in one lightweight tool.

Printed fixtures can shorten the remake cycle when a vehicle model or process changes, while reducing conventional machining and multi-part assembly.

Temperature, flame behaviour, dimensional stability and wear must be reviewed for welding environments. Metal bushes, threaded inserts and replaceable wear pads can be integrated where required.

REVIEW BEFORE QUOTING
RepeatabilityTemperature and flameInserts and wear pads
02
SLA · HIGH DETAIL & CLEAR PROTOTYPES

Review appearance, fit and internal flow paths before tooling.

SLA provides fine detail, smooth surfaces and clear-material options for lighting, interior, flow-path and sealing evaluations.

Automotive lamp clear and coloured prototypeAPPLICATION REFERENCE · 03
CASE 03

Automotive lamp optical and assembly prototype

Review lens geometry, internal space, clips, sealing grooves and an initial lighting direction before tooling.

Clear or translucent SLA materials can reproduce lenses, light guides and lamp assemblies. Polishing, clear coating or tinting makes appearance and fit easier to assess.

Prototype resin does not duplicate the optical, weathering or long-term thermal performance of production material; final validation still requires an approved material and test standard.

REVIEW BEFORE QUOTING
Clarity and colourClips and sealsOptical test limits
White 3D printed intake manifold prototypeAPPLICATION REFERENCE · 04
CASE 04

Intake manifold flow-path validation prototype

Reproduce complex passages, thin walls and mounting interfaces for packaging and assembly evaluation.

SLA can reproduce internal passages and external features with high detail, supporting connection, packaging and overall architecture reviews.

Test medium, temperature, pressure, sealing method and duration must be defined before any short-term flow or bench evaluation.

REVIEW BEFORE QUOTING
Medium and temperatureSealing and pressureInternal cleaning
03
SLS / MJF · FUNCTIONAL NYLON PROTOTYPES

Validate large assemblies, ducts and complex interfaces.

SLS and MJF suit complex nylon parts, functional prototypes and low-volume components. Large assemblies can be planned around practical splits, alignment and joining features.

Electric vehicle battery pack assemblyAPPLICATION REFERENCE · 05
CASE 05

EV battery-pack integration prototype

Check cell layout, harness routing, cooling connections and chassis interfaces before production architecture is fixed.

SLS or MJF nylon can produce frame sections, brackets, pipe retainers and local assemblies for integration and service-access reviews.

Parts beyond the build envelope require planned split lines, joints, datums and assembly sequence. These prototypes do not replace final load-bearing parts without qualification.

REVIEW BEFORE QUOTING
Assembly split planHarness and coolingInstallation access
Automotive cockpit HVAC duct housing prototypeAPPLICATION REFERENCE · 06
CASE 06

Smart-cockpit HVAC duct and housing assembly

Review ducts, display mounts, harness routes and multiple fixing interfaces within a restricted package space.

Printed nylon ducts and housings support dashboard packaging, outlet position, interference and assembly-sequence checks, while allowing early consolidation of several conventional parts.

Clips, screw joints and moving features should be tested for the expected cycles and loads; threaded inserts can support repeated assembly.

REVIEW BEFORE QUOTING
Space and interferenceClip cycle testingInserts and sequence
04
SLM + CNC · METAL FUNCTIONAL PARTS

Plan complex cooling features and precision interfaces together.

SLM enables internal channels, multi-orifice spray features and integrated metal geometries that are difficult to machine conventionally. CK can finish sealing faces, bores, threads and datums in-house by CNC.

Electric drive assembly internal structureAPPLICATION REFERENCE · 07
CASE 07

E-drive cooling housing and end cover

Combine structure, sealing, thermal management and precision mounting interfaces in a compact metal housing.

Metal AM can integrate cooling channels into an aluminium housing or cover, reducing drilled passages, plugs and separate components. CNC machining can then finish sealing faces, bores, threads and datums.

Channel diameter, wall thickness, powder removal, pressure testing, heat treatment and machining allowance are reviewed together.

REVIEW BEFORE QUOTING
Cooling-channel designPowder removalCNC allowance
Automotive metal spray componentsAPPLICATION REFERENCE · 08
CASE 08

Transmission lubrication and cooling nozzle

Integrate multiple directed orifices and internal passages in one compact metal component.

SLM can replace multiple drilled, welded or assembled details with a single nozzle whose spray direction, flow distribution and package space are considered together.

Orifice size, residual powder, surface condition and actual flow require defined inspection, machining and durability controls.

REVIEW BEFORE QUOTING
Direction and flowOrifice inspectionDurability validation
05
POLYMER · DUCTS & HOUSING ASSEMBLIES

Connect low-volume manufacture with assembly validation.

Complex plastic housings, ducts and pipe assemblies can be matched to SLA, SLS or MJF according to size, surface, temperature and strength requirements.

Black engine intake duct componentsAPPLICATION REFERENCE · 09
CASE 09

Engine intake duct assembly prototype

Check curved ducting, brackets, sensor interfaces and installation space inside the engine bay.

3D printing supports quick comparison of intake duct versions, connection angles, assembly sequence and interference. Large ducts can be split with controlled locating and joining features.

Material, sealing method and allowable duration must be defined for temperature, pressure or airflow testing.

REVIEW BEFORE QUOTING
Engine-bay spaceConnections and sealingTest material
Automotive HVAC blower housing assemblyAPPLICATION REFERENCE · 10
CASE 10

HVAC blower housing assembly validation

Check the complete relationship between motor, impeller, ducting and vehicle interfaces before tooling.

Printed blower housings support reviews of internal clearance, assembly sequence, service access and fastener position while enabling rapid design comparison.

Material performance, wall thickness, dynamic balance and mounting method require an agreed plan for vibration, noise or extended running tests.

REVIEW BEFORE QUOTING
Motor and impeller spaceService accessVibration and noise
WHY CK

Review printing, machining and inspection against one drawing.

01

Multi-process review

Compare FDM, SLA, SLS, MJF and SLM against the part requirements rather than selecting by material name alone.

02

3D printing + CNC

Plan complex internal geometry together with sealing faces, bearing locations, threads and datums.

03

Materials and finishing

Select material and post-processing around temperature, load, stability and surface objectives.

04

Prototype to low volume

Support design validation, functional prototypes, production tooling and reviewed low-volume components.

05

Inspection and documents

Define critical dimensions, CMM scope, material documents and inspection reporting before quotation.

06

Clear technical communication

Keep requirements traceable from drawing review and process confirmation through production and delivery.

Automotive development and component manufacturing application
START WITH YOUR DRAWING

Start the review with your automotive part drawing.

Share your CAD model, 2D drawing, material, quantity, tolerances, finish and test requirements. CK will recommend a practical 3D printing, CNC machining and post-processing route.

Send drawings for engineering review →
Christina, Director of Sales at CK

YOUR AUTOMOTIVE PROJECT · ONE CK CONTACT

Let’s review your automotive part.

Speak with Christina, our Director of Sales, about your automotive part, manufacturing route and project requirements.

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