Request a Precision Quote & DFM Review
Upload your 3D CAD files and 2D engineering drawings for a guaranteed Design for Manufacturability (DFM) analysis and comprehensive quotation within 24 hours. All models, technical drawings, and project communications are protected by strict bilateral NDA confidentiality.
Provide your contact info and project specifications below. For multi-part assemblies or files exceeding 25MB, you can include secure cloud links (Dropbox, Google Drive, WeTransfer) in the message field or email files directly.
📧 Direct Engineering Inquiries
- Direct Engineering Email:info@asprototypes.com
- Global Manufacturing Hub:Shenzhen Precision Manufacturing Base, China
- Confidentiality Guarantee:We routinely sign mutual NDAs before reviewing proprietary CAD files
🕒 Global Quoting & Engineering Hours
- Monday – Friday:8:30 AM – 10:30 PM (UTC+8) · Continuous Quoting Desk
- Saturday – Sunday:9:00 AM – 6:00 PM (Emergency DFM & Expedited Review)
- Average Response Time:Under 4 to 24 hours for standard prototype RFQs
📁 Accepted File Formats Quick Guide
- 3D Solid Models:STEP (.stp), Parasolid (.x_t), IGES (.igs), SolidWorks (.sldprt), STL
- 2D Engineering Drawings:PDF, DWG, DXF with GD&T, thread specifications & critical tolerances
- Large Files & Assemblies:ZIP archives or cloud share links (Dropbox, Google Drive, WeTransfer)
3D CAD & 2D Technical Drawing Submission Specifications
To ensure rapid quotation turnaround and precise Design for Manufacturability (DFM) analysis, review our recommended file format criteria before submitting:
3D Solid CAD Formats
We accept native and universal neutral 3D CAD formats for automated geometry interrogation and CAM toolpath programming:
- STEP (.stp, .step) – ISO 10303 Recommended
- Parasolid (.x_t, .x_b) – Core modeling kernels
- IGES (.igs) – Surface & solid geometry
- SolidWorks (.sldprt) – Native part files
- STL (.stl) – 3D Printing & additive meshes
2D Engineering Drawings
2D prints communicate critical requirements that cannot be captured in 3D CAD models alone:
- PDF (.pdf) – Dimensioned engineering prints
- DWG / DXF – Vector line profiles & flat patterns
- GD&T Callouts – True position, concentricity, runout
- Tolerances – Critical fits tighter than ISO 2768-m
- Thread Specs – Tapped hole depth & surface finishes
Archive & Large Assemblies
For multi-component mechanical assemblies and complex hardware projects:
- ZIP / RAR archives bundling 3D + 2D prints
- Bill of Materials (BOM) in Excel or PDF
- Secure Cloud Links (Dropbox, Drive, WeTransfer)
- Direct Email: info@asprototypes.com
- Large Assemblies: Dedicated cloud transfer support
From Digital CAD to Precision Finished Hardware in 4 Steps
A streamlined digital-to-physical engineering workflow from CAD upload to overseas delivery:
Upload CAD & Specs
Submit your 3D CAD models and 2D drawings via our online RFQ portal or email. Specify material grades, surface finishes, and quantities.
24h DFM & Quotation
Our senior manufacturing engineers review toolpaths, wall thicknesses, and tolerances, providing an itemized quotation with actionable DFM feedback within 24 hours.
Precision Manufacturing
Upon order approval, parts are scheduled on calibrated CNC centers, Swiss lathes, wire EDM, or 3D printers with in-situ Renishaw touch-probe verification.
Zeiss CMM QC & Dispatch
100% dimensional inspection in our 20°C cleanroom metrology lab, Standardized Dimensional First Article Inspection (FAI) Reports, custom EPE foam packaging, and express worldwide air dispatch.
Why Tier-1 OEM Engineers & Hardware Startups Trust AS Prototypes
Strict quality assurance, intellectual property protection, and on-demand metrology backing every prototype:
Strict Bilateral NDA
All customer designs, proprietary drawings, and project communications are held in strict legal confidentiality. We routinely execute mutual NDAs prior to file evaluation.
Rigorous Quality Control
From raw stock XRF material verification to multi-stage in-process machining checks, our quality team enforces rigorous standards on every production run.
Zeiss CMM Inspection
Our climate-controlled metrology lab houses Zeiss and Hexagon CNC CMMs, optical video measuring systems (VMS), and calibrated electronic height gauges for FAIR reporting.
Global Express Logistics
Door-to-door expedited delivery via DHL, FedEx Priority, and UPS. Customs clearance support with full tracking for North America, Europe, and Asia-Pacific.
Explore Our Comprehensive Manufacturing Services
Specify any combination of manufacturing processes and surface treatments directly in your RFQ:
CNC & Micro-Machining
Sheet Metal & Molding
Frequently Asked Questions About Quoting & Ordering
Turnaround times, NDA policies, file submission limits, and international shipping options:
How quickly will I receive my quote and DFM analysis?
For standard CNC machining, sheet metal, and 3D printing RFQs with 3D CAD files and 2D drawings, our engineering team typically delivers a comprehensive quote and DFM feedback within 4 to 24 hours. Complex multi-part assemblies or custom mold tooling RFQs are returned within 24–48 hours.
Can AS Prototypes sign our company Non-Disclosure Agreement (NDA)?
Yes, absolutely. We routinely sign bilateral or client-supplied Non-Disclosure Agreements before CAD models are evaluated. We treat all customer designs, proprietary drawings, and intellectual property with strict legal confidentiality.
What if my project files exceed the 25MB attachment limit?
For assemblies or heavy CAD archives exceeding 25MB, you can compress files into a .ZIP archive, provide a secure cloud download link (Dropbox, Google Drive, OneDrive, WeTransfer) directly inside the message field, or email files directly to info@asprototypes.com.
What is your Minimum Order Quantity (MOQ)?
We have no Minimum Order Quantity (MOQ = 1 piece). We specialize in single-piece functional engineering prototypes, bridge tooling, and low-to-high volume production runs (10 to 100,000+ pieces) with scalable volume pricing tiers.
What quality inspection reports and material documentation do you provide?
Upon request, every order can be accompanied by raw material Mill Test Reports (MTC / MTR), on-demand CMM dimensional inspection reports, First Article Inspection (FAI) documentation, and surface roughness / coating thickness verification reports.
What international shipping options do you support?
We partner directly with DHL Express, FedEx Priority, and UPS for worldwide air courier delivery with 3–5 business days transit to North America, Europe, Australia, and Asia. We provide export customs clearance documentation and tracking updates.
Ready to Launch Your Precision Manufacturing Project?
Submit your 3D CAD files online or send your engineering drawings to our technical team. We guarantee actionable DFM feedback and an itemized quote within 24 hours.
