On-Demand Parts for the Automotive Industry

Functional prototypes, custom components, and production tooling for automotive teams. Fast turnaround, no MOQs, no tooling investment.

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200+ Companies Trusted by automotive teams
98.4% On-Time Delivery
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15+ Automotive Materials
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Automotive Parts & Prototypes, Without the Tooling Wait

Traditional automotive prototyping is expensive and slow. Injection molding tooling costs tens of thousands of dollars and takes weeks to deliver. Iterating on custom brackets, housings, and interior components means re-cutting tools every time the design changes. For small-batch aftermarket parts or pre-production validation, the economics simply don't work.

Simple Machining gives automotive teams a faster path. Upload your CAD file, get an instant quote, and receive functional prototypes and production aids in materials built for under-hood heat, UV exposure, and mechanical stress. No tooling investment, no MOQs, no setup fees. Just the parts you need to keep your vehicle program moving.

How Automotive Teams Use Our Services

From early-stage prototyping to production-line tooling, automotive teams rely on our rapid manufacturing capabilities.

Functional Prototyping

Validate fit, form, and function of automotive components before committing to injection molding. Test snap fits, mounting points, and assembly clearances with real materials.

Custom Interior Components

Print dashboard trim pieces, console prototypes, vent housings, and control bezels. Iterate on interior fit and finish without waiting on soft tooling.

Brackets & Mounting Hardware

Custom mounting brackets, sensor housings, and cable routing clips in carbon-fiber nylon or glass-filled PA6. Strength and heat resistance for under-hood and chassis use.

Production Jigs & Fixtures

Replace machined assembly jigs with 3D-printed alternatives at a fraction of the cost. Alignment fixtures, weld-line check gauges, and quality inspection aids on demand.

Aftermarket Parts

Small-batch aftermarket components without mold investment. Custom grilles, intake adapters, trim pieces, and replacement parts for classic or specialty vehicles.

Wind Tunnel & Aero Models

Scaled aerodynamic models and bodywork prototypes for wind tunnel testing. Lightweight, dimensionally accurate parts in SLS nylon or high-detail SLA resin.

From CAD to Part in 4 Steps

No purchase orders. No phone tag. Upload, quote, print, ship.

Upload

Configure

Order

Delivery

Step 1

Upload Your CAD File

Drag and drop your files into our instant quoting platform. We handle the rest.

  • STL, STEP, OBJ, and 3MF supported
  • Instant 3D model preview
  • Multi-file batch uploads
  • Upload history for reorders
Add files or browse to select files STL, STEP, STP, 3MF, AMF · up to 500 MB/file
Step 2

Configure Your Build

Choose your process, material, quantity, and quality settings. Pricing updates in real time.

  • Process and material selection
  • Quantity and volume discounts
  • Quality profile options
  • Post-processing add-ons
Specifications
Technology Manufacturing process
MJF
Material Base material selection
Nylon PA12
Order Quantity Set units per part.
10 +
Print Quality Profile Compare
StandardBalanced finish QualitySharper detail PremiumBest finish
Step 3

Review & Order

Review totals, select shipping speed, and submit. Need a manual quote? We've got that too.

  • Parts list with status and totals
  • Shipping and lead-time options
  • Manual quote gate when needed
  • Shareable purchaser view
Order Confirmed! Your manufacturing order has been received
Order Number ORD-20439
Total Amount $412.80
Confirmation SentOrder details sent to you@yourcompany.com
Production StartingParts enter production within 24 hours
Step 4

Track & Receive

Follow your order from production through delivery with real-time status updates.

  • Status timeline and shipment tracking
  • Real-time ETA updates
  • Partial shipments supported
  • Delivery confirmation
Custom Project ORD-20439 Placed: Today
Estimated delivery In 6 business days
In Review
In Production
Shipped
Delivered
Shipment 1 In transit
Tracking: 1Z999AA1012345 · ETA 6 days

Built for Every Automotive Discipline

Whether you're engineering production vehicles, building race cars, or designing aftermarket parts, we speak your language.

OEM Engineers

Functional prototypes and pre-production parts for vehicle programs. Validate designs before committing to injection mold tooling.

Aftermarket & Custom Shops

Small-batch custom parts, replacement components, and one-off builds without minimum order quantities or tooling costs.

Motorsport Teams

Lightweight aero components, custom brackets, and rapid-turn parts for race prep and trackside iteration.

EV Startups

Fast-turn prototypes for battery enclosures, charging components, and interior trim. Move from concept to validation without long lead times.

Automotive R&D Labs

Test fixtures, custom sensor mounts, and experimental components for durability testing and material evaluation.

Automotive Design Studios

High-fidelity visual prototypes, show models, and concept builds in smooth SLA resin or painted SLS nylon.

Automotive-Grade Materials

15+ materials matched to automotive environments, including under-hood heat, UV exposure, impact loads, and surface finish.

Material Key Property Best For Heat Resist.
Nylon PA12 >40 MPa tensile strength Functional prototypes, snap-fits
Nylon PA12-CF Carbon fiber reinforced Lightweight brackets, aero parts
ASA UV, weather & heat resistant Exterior trim, body components
ABS High impact resistance Interior trim, paintable housings
PA6-GF >180°C heat deflection Under-hood, fluid-contact parts
Engineering Resins Smooth SLA surface finish Show models, visual prototypes

Find the Right Process for Your Project

Select what matters most. We'll point you to the right process.

FDM 3D Printing

Get concept models in 1 to 2 days. Best for early-stage iteration, fit checks, and fast design cycles where speed matters more than finish.

Learn more about FDM →
SLS 3D Printing

Nylon parts with real mechanical properties. Handles snap fits, load-bearing assemblies, and complex geometry without support structures.

Learn more about SLS →
SLA 3D Printing

Smooth, high-detail parts for presentations, visual prototypes, and transparent or flexible components. Smoothest surface finish of any process we run.

Learn more about SLA →
MJF 3D Printing

Consistent mechanical properties across 10 to 500 parts. No tooling investment, no MOQs. Production-grade nylon with fast turnaround.

Learn more about MJF →
CNC Milling

Tight tolerances, threaded features, and metal-strength parts. For production-grade requirements where 3D printing won't cut it.

Learn more about CNC →

Note: These are general guidelines. Every project is different. Talk to our team and we'll help you find the right fit.

What Automotive Teams Say

★★★★★

"Simple Machining helped take our concept to a production-ready prototype. Their CAD and 3D printing support gave us confidence at every step. Professional, responsive, and reliable."

Kenny B.

★★★★★

"Needed a few parts 3D printed for a project. Extremely quick to respond. I had a quote at a reasonable rate within 2 hours of sending over my files and had high quality parts in my hand less than a week after. Highly recommend."

Jason J.

★★★★★

"I needed some help with a prototype product development project. This turned out to be the best possible decision. Avneet guided me through basics and produced several product models for me to evaluate. I have saved more time and money than I initially imagined."

Harry

Manufacturing process

SLS

Base material selection

Nylon PA12
Order Quantity

Set the units for this part.

View volume discounts
View color guide
Compare
Estimated Total
$412.80 ($41.28 / ea)

Instant Auto-Quoter

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Order.

Upload your CAD model and receive instant pricing with material, quantity, and lead-time options in seconds. No phone calls, no quote forms, no waiting.

  • Instant pricing as soon as your file uploads
  • Adjust material, quality, or quantity; totals update live
  • No MOQs, no setup fees, no purchase orders required
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Automotive FAQ

Yes. Materials like PA6-GF offer heat deflection temperatures above 180°C, making them suitable for under-hood brackets, ducting, and sensor housings. We also offer ASA and PA12-CF for elevated-temperature applications. See all materials.
ASA is our top recommendation for UV-exposed automotive parts. It offers excellent UV stability, heat resistance, and weatherability, making it ideal for exterior trim prototypes, mirror housings, and grille components. For structural exterior parts, PA12-CF provides additional stiffness and strength.
Absolutely. Nylon PA12 and PA11 are excellent for snap-fit clips, retention features, and living hinges. SLS and MJF processes produce parts with consistent mechanical properties that allow real-world fit and function testing before committing to injection mold tooling.
Standard lead times are 3 to 5 business days depending on process and complexity. Rush production is available with turnaround as fast as 1 business day for qualifying orders. Upload your files to see lead time options with your instant quote.
Yes. We work with motorsport and racing teams on aerodynamic components, custom brackets, lightweight structural parts, and wind tunnel models. Carbon-fiber-reinforced nylon and PA6-GF are popular choices for high-performance applications. Contact us to discuss your project.

Ready to Accelerate Your Build?

Upload your CAD files and get an instant quote for automotive parts. No MOQs, no tooling investment, no purchase orders required.

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