Manufacturing support

Manufacturing FAQs

Answers on quotes, CAD and PCB files, process selection, quality and delivery. Find what you need to prepare your next manufacturing project.

Preparing a quote?

Start with your files, material, quantity and target date.

Request a Quote

Quotes & project fit

Check the service scope and prepare a useful first inquiry.

Which manufacturing services does Zenbot China provide?

Zenbot China coordinates CNC machining, sheet metal fabrication, 3D printing, injection molding, PCB fabrication and assembly, and supporting services such as finishing and product assembly. Share your product requirements so the team can review the processes, materials and inspection needs for your project.

Compare manufacturing capabilities

What information do I need to request a manufacturing quote?

Send the product files, quantity, material, finish, critical requirements and target delivery date. Mechanical projects usually need CAD models and drawings; PCB assembly requests need fabrication, BOM and placement data. Include the end use, delivery destination and any required inspection or testing so the quotation covers the intended work.

Review the RFQ checklist

Can I request prototypes or small production quantities?

Yes. Zenbot reviews prototype and production requests across its manufacturing services. The minimum practical quantity depends on the process, setup, tooling, material purchasing and testing requirements. State your first-order quantity and expected repeat demand so the team can review a suitable route and the costs involved.

Discuss your required quantity

How long does it take to receive a manufacturing quote?

Quotation timing depends on the completeness of the files and the complexity of the project. Tooling, special materials, component sourcing and multiple manufacturing processes may require additional review. Include your decision deadline with the RFQ; the team can then clarify missing information and confirm the next step.

Contact the project team

Can one RFQ include mechanical parts, molded parts and PCBA?

Yes. A single RFQ can include several manufacturing processes and a complete assembled product. Provide a controlled bill of materials, component drawings, electronics files, interface requirements and test criteria. Each component and assembly interface is reviewed before the combined manufacturing scope is confirmed.

Explore product assembly support

Files & design

Prepare consistent files and identify the features that matter.

Which CAD files and drawings should I send for mechanical parts?

Send a 3D CAD model, such as STEP, STP or an agreed X_T file, together with a 2D drawing when dimensions, tolerances, threads or finish notes need to be controlled. Use matching revisions and identify critical features. Confirm any native file format with the team before sending it.

View CNC machining guidance

What files are needed for a PCB assembly quote?

Provide Gerber files, a bill of materials and component placement data. Add board specifications, assembly drawings, approved component alternatives, quantity and test requirements. Keep the PCB, BOM and placement files at the same revision so fabrication, component sourcing and assembly can be reviewed together.

View PCB and PCBA services

Can I discuss a project before the CAD files are complete?

Yes. Share the available sketches, drawings, photographs and functional requirements for an initial discussion. Explain what still needs to be designed or measured. Any design, reverse-engineering or file-preparation work must be scoped separately, and manufacturing requirements need to be defined before production can be confirmed.

Discuss an early-stage project

Does Zenbot provide design-for-manufacturing feedback?

Zenbot reviews manufacturing requirements and can discuss process-specific design-for-manufacturing, or DFM, considerations. Useful inputs include the intended function, material, quantity, critical dimensions and finish. The review scope depends on the project; changes to the design or acceptance requirements should be agreed before manufacturing begins.

Read the design checklists

Can I discuss an NDA before sending CAD or PCB files?

Yes. Email sales@zenbotchina.cc to discuss confidentiality requirements and whether an NDA is needed before sharing sensitive files. Agree the information-sharing process first, then provide the data needed for review. Any confidentiality agreement must be confirmed for the project.

Discuss confidentiality

Processes & materials

Match the manufacturing route to the part and its intended use.

How do I choose between CNC machining, 3D printing and injection molding?

Choose the process around the material, geometry, quantity, finish, critical dimensions and intended use. CNC machining, additive manufacturing and molding involve different tooling, design and production considerations. Share these requirements with the team so feasible routes can be compared before committing to a process.

Compare manufacturing processes

How should I specify the material for a custom part?

State the material grade or resin, relevant condition or temper, and any performance or documentation requirements. If the material is undecided, describe the operating environment, loads, temperature and appearance needs. Availability and suitability are reviewed for the selected process; a material family name alone may not define the final specification.

Review materials and capabilities

What should I specify for a sheet metal enclosure or bracket?

Specify the sheet material, thickness, formed dimensions, quantity and finish. Include bends, welds, installed hardware and any critical fit or cosmetic requirements in the drawings. Identify the surfaces and dimensions that matter after forming or welding so the fabrication and inspection plan reflects the finished assembly.

Explore sheet metal fabrication

Can Zenbot source components as part of a PCBA project?

Yes. Component sourcing can be reviewed with PCB fabrication and assembly. Provide manufacturer part numbers, quantities and your rules for approved alternatives. Component availability, sourcing scope and any substitutions need to be agreed before purchasing and assembly proceed.

Review PCBA sourcing and assembly

Can surface finishing be included in the manufacturing request?

Yes. Include the required coating or finish, color, texture, masking and cosmetic acceptance criteria in the RFQ. The suitable finish depends on the material, process and part function. Highlight fit-critical surfaces so finishing requirements and their effect on final dimensions can be reviewed together.

Explore finishing and supporting services

Quality & assembly

Agree the inspection, documentation and assembly requirements.

Are the tolerances in the capability guide guaranteed for every part?

No. Published capability figures are planning references. Achievable tolerances depend on geometry, material, process, size and the inspection method. Mark critical dimensions on the drawing so the team can review feasibility and agree the manufacturing and acceptance requirements for your specific part.

Read the capability planning notes

Can I request inspection reports or material documentation?

Yes. Specify the required inspection reports, material certificates, traceability or first-article records in the RFQ. Their availability, scope, measurement methods and acceptance criteria must be agreed for the project. Identifying these requirements before quotation helps include the necessary inspection and documentation work.

Review quality-planning guidance

What inspection and testing should I request for PCB assembly?

Define the inspection and electrical test requirements for the board's application. AOI, X-ray inspection and functional testing may be considered according to the package and project needs. State the expected test coverage, limits, fixtures and records; the tests included in the order must be agreed explicitly.

Explore PCBA inspection and testing

What information is needed for mechanical and electronic assembly?

Provide a controlled bill of materials, mating-part drawings, interface tolerances and assembly instructions. Add functional tests, labeling and packaging requirements where relevant. Clearly identify purchased parts and supplied components so manufacturing, assembly and acceptance can be coordinated around the same product revision.

Review product integration services

How are industry-specific quality or certification requirements handled?

List the applicable standards, documentation and validation requirements in the RFQ. Industry examples and general manufacturing capabilities do not establish approval for a particular application. Required certifications, special processes and acceptance evidence must be checked against current records and the scope of the proposed work before an order is accepted.

Discuss application requirements

Delivery & changes

Clarify timing, delivery details and changes to the project.

What affects manufacturing lead time?

Lead time depends on the process, design readiness, material or component availability, tooling, quantity, finishing and inspection requirements. Include your target date and any prototype or validation milestones in the RFQ. The project schedule is confirmed after the manufacturing scope and required inputs have been reviewed.

Share your project schedule

What delivery and packaging information should I provide?

Provide the delivery destination, required arrival date, packaging preferences and labeling requirements. Identify any special handling or documentation needs. Confirm the shipment method, delivery responsibilities and applicable shipping charges with the quotation so the manufacturing schedule and transport plan are aligned.

Discuss delivery requirements

What should I do if my design changes after a quote or order?

Notify the project contact promptly and send the revised files with a clear change summary. Ask the team to review the effect on work already completed or in progress, price, tooling, inspection and timing. The revised scope must be confirmed in writing before the change is implemented.

Contact Zenbot about a revision

What should I confirm before placing a repeat order?

Reference the earlier order and confirm the current drawing and BOM revisions, quantity, materials, finishes and acceptance requirements. Note any changes to the product or required records. Material availability, tooling status, pricing and timing should be reviewed for the new order rather than assumed from the previous batch.

Discuss a repeat order

What information should I send if I have a quality concern?

Contact Zenbot with the order reference, part number and revision, affected quantity, and a description of the issue. Include photographs, measurements or test results where available, together with the agreed requirement. The team can then review the evidence and discuss the appropriate next steps for the order.

Contact the team about an order

Your next step

Let's review your manufacturing requirements.

Send the product files and the details that matter. Zenbot will review process fit and clarify the information needed for the next step.

Useful for the first review

  • CAD or PCB files
  • Quantity and forecast
  • Material and finish
  • Critical dimensions
  • Inspection and test needs
  • Target date and destination

Project-specific capability, pricing, timing and acceptance requirements are confirmed after review.