Control the Interfaces
For parts that fit once, but not repeatedly across units.
- Find tolerance stack and mating-surface risk
- Define CTQ dimensions and inspection gates
- Recommend fixture or design-control changes
Output: fit control plan + CTQ list
Tell us what is blocking the build. Unionfab turns that risk into a clear DFM, process, prototype, or pilot-build path without asking you to classify your development stage.
DFM CAD Analysis
Tool Verification
Topology Optimization
Cost FeasibilityProblem -> engineering path -> validated build
Start from the risk, not the acronym.
Choose the sentence that sounds closest. You get a concrete action, deliverables, and what it prevents.
Assembly support should reduce a specific risk: fit variation, fastener failure, batch inconsistency, slow build time, or unreliable delivery.
For parts that fit once, but not repeatedly across units.
Output: fit control plan + CTQ list
For fasteners, inserts, clips, bonding, or sequence issues that create rework.
Output: assembly control plan + SOP notes
For kits that must arrive labeled, protected, complete, and ready to use.
Output: pack-out standard + QC checklist
Each step states what Unionfab does, what you receive, and what failure it prevents.
Checks: wall thickness, draft, undercuts, feature size, process limits
Output: marked risk list and CAD/drawing fixes
Prevents: failed quotes, weak parts, tool changes
Checks: quantity, material, finish, tolerance, performance
Output: best-fit process and backup route
Prevents: prototype paths that cannot scale
Checks: what the first part must prove
Output: sample plan for fit, function, or appearance
Prevents: beautiful prototypes that do not answer the real question
Checks: strength, heat, chemicals, wear, compliance, availability
Output: material shortlist and substitutions
Prevents: test results based on the wrong material
Checks: tolerance stack, datum plan, inserts, fasteners, access
Output: assembly notes and CTQ interfaces
Prevents: parts that pass alone but fail together
Checks: repeatability, fixtures, QC gates, acceptance criteria
Output: pilot build plan and inspection checklist
Prevents: uncontrolled low-volume builds
Users choose the problem they recognize, not an internal development stage.
Every recommendation becomes a report, route, sample plan, or pilot build plan.
The page makes clear what each engineering action prevents: rework, tooling changes, missed tests, or launch delay.
CAD, 2D drawings, BOM, target quantity, material expectations, and the risk blocking the next build.
Engineers review manufacturability, process fit, material risk, assembly interfaces, and pilot-build requirements within 24 hours.
We return the DFM fix list, process route, material shortlist, sample plan, or pilot-build plan.
First articles, functional samples, or pilot units are built with QC gates and launch handoff notes.

Specific geometry, drawing, process, and material risks.

What to build next, why, and what it proves.

QC gates, CTQ items, fixture needs & handoff notes.
READY TO START
Upload CAD, drawings, BOM, target quantity, material expectations, and the problem blocking your next build. Unionfab will map the DFM, process, prototype, or pilot-build path.
Unionfab is China's Largest 3D Printing Manufacturing Company for Rapid Prototyping and On-Demand Production Parts.
