
Get your CAD reviewed before you send it to suppliers, fabricators, mold makers, or tooling partners.
A fixed-fee CAD and manufacturing risk audit for product teams who want to identify practical design, manufacturability, assembly, and supplier quote risks before committing to tooling or production.
Pre-Tooling CAD Risk Audit — $950
Suitable for up to 3 parts or 1 small assembly.
CAD Risk Audit by Ben Nel, BSc Mechanical, founder of 3DDFM, with nearly 30 years of practical product design, CAD, tooling, and manufacturing experience.
Upwork Top Rated Plus
International clients
Injection molding, sheet metal, enclosures, prototyping, and manufacturing background
Practical DFM experience, not theoretical review only
Sending CAD to suppliers too early can create expensive problems.
A supplier may quote around incomplete information, miss important design risks, or come back later with changes that affect cost, tooling, lead time, or product performance.
The Pre-Tooling CAD Risk Audit is designed to give you an independent technical review before you commit to supplier quotes, tooling, fabrication, or production planning.
The goal is simple:
Identify the major CAD and manufacturing risks early enough to make better decisions.
CAD that looks finished but is not ready for manufacturing.
Features that may increase tooling or fabrication cost.
Missing or unclear information for supplier quotes.
Process mismatch between design intent and manufacturing method.
Part geometry that may be difficult, expensive, or unreliable to manufacture.
Assembly issues that are not obvious from individual part models.
Unclear material, tolerance, or production assumptions.
Supplier quote risk caused by incomplete or risky design information.
Early design decisions that may become expensive to fix later.


Overall CAD readiness
Manufacturability risks
Process suitability
Part complexity
Assembly risk
Supplier quote readiness
Critical features that may affect cost or production
Obvious tolerance or fit concerns
Material and process assumptions
Areas that may need redesign before tooling or supplier quotes
Recommended next steps
This audit can be useful before several manufacturing routes, including:
Injection molding
Sheet metal fabrication
CNC machining
3D printing for prototype or production use
Fabricated assemblies
Electronic enclosures
Mixed-process mechanical products
Small mechanical assemblies
If your project is clearly injection molded and you need a deeper plastic part review, the Injection Molding DFM Review may be a better fit.
If you are unsure which review you need, submit a Project Review Request.
Review of up to 3 parts or 1 small assembly
Review of supplied CAD files, drawings, screenshots, photos, or supplier feedback
High-level manufacturing and CAD risk assessment
Review of supplier quote readiness
Identification of practical design risks before tooling or fabrication
Priority list of concerns
Recommended next steps
Written summary report
Annotated screenshots where useful
The audit is intended to help you understand what may need to be fixed, clarified, simplified, or checked before moving further into manufacturing.
Full CAD redesign
Detailed engineering redesign
Mold design
Tooling design
Supplier sourcing
Manufacturing management
Full detailed DFM report for every feature
Production-ready drawings
Tolerance stack analysis
Simulation or FEA
Costed manufacturing quote
Unlimited revisions
Multiple design iterations
If deeper design work, supplier sourcing, or a detailed DFM review is required, we can recommend the best next step after the audit.
The fixed-fee Pre-Tooling CAD Risk Audit is suitable for:
Up to 3 parts, or
1 small assembly
For complex assemblies, multi-process products, mechanisms, electronics-heavy products, or projects with more than 3 parts, please request a Project Review before ordering.
This helps us confirm the correct scope and avoid under-quoting or over-promising.
To get the most value from the audit, please prepare any relevant information you have:
STEP files or CAD screenshots
2D drawings if available
Assembly screenshots if relevant
Product photos or prototype photos
Supplier feedback if available
Target manufacturing process
Expected production volume
Target material if known
Main concerns or questions
Current project stage
Any known constraints, such as cost, size, material, or assembly requirements
You do not need to have everything finalized, but the more information you provide, the more useful the audit will be.
Order the Pre-Tooling CAD Risk Audit.
Submit your CAD files, screenshots, drawings, product details, and main concerns.
We review the information against likely manufacturing and supplier quote risks.
You receive a written summary report with priority risks and recommended next steps.
If needed, we recommend whether the next step should be redesign, a deeper DFM review, supplier quote preparation, or a strategy call.
The purpose is to give you practical direction before you spend more money on suppliers, tooling, fabrication, or production.
Price: $950
Includes:
Review of up to 3 parts or 1 small assembly
CAD and manufacturability risk assessment
Supplier quote readiness review
Priority risk list
Recommended next steps
Written summary report
Annotated screenshots where useful
Larger or more complex projects require a custom quote.
Is this a full DFM review?
No. This is a focused CAD and manufacturing risk audit before tooling, fabrication, supplier quotes, or production planning. It identifies practical risks and recommended next steps, but it is not a full redesign or detailed process-specific DFM report.
How is this different from the Injection Molding DFM Review?
The Injection Molding DFM Review is focused specifically on plastic parts intended for injection molding. The Pre-Tooling CAD Risk Audit is broader and is useful when the manufacturing process is not fully confirmed, when the product uses multiple processes, or when you need an early supplier-readiness check.
How many parts are included?
The standard audit includes up to 3 parts or 1 small assembly. Larger assemblies, mechanisms, electronics-heavy products, or products with more than 3 parts may require a custom quote.
Can I send assembly files?
Yes, if the project fits the standard scope. For larger assemblies or complex products, please submit a Project Review Request before ordering.
Will you redesign my CAD?
No. CAD redesign is not included. If redesign is needed, the audit will identify the issue and recommend the next step.
Will I receive a written report?
Yes. You will receive a written summary report with priority risks, comments, and recommended next steps. Annotated screenshots may be included where useful.
Can this help before I ask suppliers for quotes?
Yes. That is one of the main purposes of this audit. It helps identify missing information, design risks, or manufacturability concerns before you send files to suppliers.
Can you review supplier feedback?
Yes. If you have supplier feedback, you can include it with your submission. We can review it as part of the audit and help identify what needs attention.
Does this include supplier sourcing?
No. Supplier sourcing is not included. If you need help preparing supplier quote information or sourcing manufacturers, that would be quoted separately.
What if I am not sure which review I need?
Submit a Project Review Request and we will recommend the most suitable paid option.
Check Your CAD Before You Commit to Tooling or Supplier Quotes
A small design risk can become expensive once suppliers, tooling, or production are involved.
The Pre-Tooling CAD Risk Audit gives you an independent review before you move too far in the wrong direction.
Order the fixed-fee audit today, or request a Project Review if your product is larger or more complex.