On-Demand Parts for Engineers
Skip the RFQ queue. Upload your STEP file and ship engineering-grade parts (functional prototypes, fixtures, bridge production) as fast as 1 business day. No POs. No MOQs. No setup fees.
Get an Instant QuoteEngineering Prototypes, Without the Bottleneck
Traditional prototyping slows engineering teams down. Long lead times from machine shops, high minimum orders, and limited material options turn what should be a fast design iteration into a weeks-long wait. Every delay pushes back validation, testing, and launch.
Simple Machining eliminates that friction. Upload your CAD file, get an instant quote, and receive functional prototypes in engineering-grade materials, with turnaround as fast as one business day. No purchase orders, no MOQs, no setup fees. Just the parts you need to keep your product development cycle moving.
How Engineers Use Our Services
From first concept to production-ready parts, engineers rely on our rapid prototyping and on-demand manufacturing capabilities.
Functional Prototyping
Test form, fit, and function with parts printed in engineering-grade nylon, ABS, or carbon-fiber composites. Validate your design before committing to tooling.
Design Validation & Iteration
Rapid iteration cycles let you fail fast and refine faster. Print multiple design variants in parallel and test them side by side in days, not weeks.
Custom Fixtures & Tooling
Print test jigs, assembly fixtures, and production aids in durable nylon. Replace machined tooling at a fraction of the cost and lead time.
Low-Volume Production
Bridge production runs of 10 to 500 parts without tooling investment. Ideal for pre-launch validation, limited releases, or ongoing low-volume needs.
Proof of Concept
Turn CAD models into tangible prototypes for stakeholder demos, investor presentations, and internal concept validation. Make your ideas real.
R&D & Experimentation
Print custom lab apparatus, test rigs, and research components. Iterate on experimental setups without waiting on traditional fabrication.
From CAD to Part in 4 Steps
No purchase orders. No phone tag. Upload, quote, print, ship.
Upload
Configure
Order
Delivery
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
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
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
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
Built for Every Engineering Discipline
Whether you're building hardware, validating designs, or running experiments, we speak your language.
Mechanical Engineers
Fit checks, load testing, and assembly validation in engineering-grade nylon and composites.
Product Design Engineers
Rapid form factor iteration, ergonomic testing, and multi-variant comparison.
Aerospace Engineers
Complex geometries and lightweight structures with high strength-to-weight ratios.
Electrical & Hardware Engineers
Custom enclosures, mounting brackets, and housing prototypes before injection molding.
R&D Teams
Test fixtures, custom lab apparatus, and one-off research components with no MOQs.
Engineering Students & Teams
SAE, FIRST, capstone, and senior design projects with professional-grade materials.
Engineering-Grade Materials
8 engineering-grade materials optimized for strength, heat resistance, chemical resistance, and dimensional accuracy.
Nylon PA12
- High tensile strength >40 MPa
- Excellent impact resistance
- Great for functional prototypes
Nylon PA12-CF
- Carbon fiber reinforced
- High stiffness-to-weight ratio
- Ideal for structural components
ABS
- Good impact resistance
- Easy post-processing and finishing
- Great for engineering components
ASA
- UV, heat, water resistant
- Great impact resistance
- Ideal for outdoor applications
PA6-GF
- Glass fiber reinforced
- Chemical resistance
- >180°C heat deflection
SLA Resins
- High-detail SLA printing
- Smooth surface finish
- Rigid, tough, or flexible options
Find the Right Process for Your Project
Select what matters most. We'll point you to the right process.
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 →Nylon parts with real mechanical properties. Handles snap fits, load-bearing assemblies, and complex geometry without support structures.
Learn more about SLS →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 →Consistent mechanical properties across 10 to 500 parts. No tooling investment, no MOQs. Production-grade nylon with fast turnaround.
Learn more about MJF →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 Engineers 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."
"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."
"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."
Manufacturing process
Base material selection
Set the units for this part.
Instant Auto-Quoter
Upload a file.
Get a price.
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
- Files encrypted. Your IP stays yours
Engineering FAQ
- 700 Terminal Cir. Livermore, CA 94551
- info@simplemachining.com
- +1 925.344.6165