Geometry and access
Show pockets, hole patterns, slots and internal corners. Access and the relationship between faces affect the proposed route.
CNC milling
Mounting features.
Space for the assembly.
Review custom plates, blocks and housings around their pockets, hole patterns and mating faces. Mark the datums, fastener access and surfaces that need protection.
Review my cnc milling part
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Real Chengshuo factory footage
A better route starts
with better inputs.
A complete drawing package helps keep the quotation, machining route and sample checks aligned. Identify these requirements before comparing options.
Datums and workholding
Identify the functional datum structure and surfaces that cannot be marked. Discuss the critical relationships between features.
Inspection and finish
Specify the checks that matter to fit and function, together with cosmetic faces, edge conditions and post-machining treatment.
REAL COMPONENT EXAMPLES
Compare the relevant
component geometry.
AI-assisted studio viewcs-product-017
Aluminum positioning block
An aluminum positioning block with pockets, holes and a shaped exterior. Relate the locating features to the functional datums in your drawing.
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AI-assisted studio viewcs-product-018
Aluminum fixing plate
An aluminum fixing plate with an angled form and a central mounting opening. Define the relationship between the mounting faces and the hole centre.
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AI-assisted studio viewcs-product-013
Aluminum USB hub case
An aluminum USB-hub enclosure with a slim profile and multiple interface openings. Port positions and the internal assembly clearance guide the drawing review.
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AI-assisted studio viewcs-product-012
Watch case frame
A watch-case frame with a shaped outer profile and open interior. Review the assembly opening, internal recesses and cosmetic surfaces together.
Explore componentGeometry references from the Chengshuo portfolio. Each card identifies its published process; the manufacturing route for your own drawing is reviewed individually.
Material is more
than a family name.
Materials guide Aluminum / PROJECT PLANNING
Weight, geometry and surface finish.
Specify the exact alloy and temper. A cosmetic finish, thread fit and thin wall can introduce different requirements into the same component.
- Alloy and temper on the drawing
- Functional versus cosmetic surfaces
- Finish allowance on mating features
Anodizing or another treatment must be specified before final dimensions and acceptance are agreed.
Explore aluminum examplesStainless steel / PROJECT PLANNING
Define the grade and the working environment.
“Stainless steel” alone is not a complete material specification. Describe the required grade, documentation and exposure conditions so the manufacturing review starts from the same assumptions.
- Grade and material documentation
- Required edge condition and cleaning
- Functional surfaces and inspection scope
Corrosion performance depends on grade, finish and environment. Discuss application requirements rather than relying on appearance.
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Brass / PROJECT PLANNING
Make the alloy and the thread requirements explicit.
For connectors, sleeves and turned details, specify the brass alloy alongside the thread, sealing and finish requirements. Distinguish the visible shape from its functional acceptance criteria.
- Exact alloy designation
- Thread class, gauging and engagement
- Coating, cleaning and sealing interfaces
State any material-composition or regulatory requirement in your enquiry; do not infer it from a generic brass description.
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Copper / PROJECT PLANNING
Treat the functional surface as a requirement.
If a copper part has an electrical or thermal role, identify the relevant alloy and the surfaces that matter. Include any required coating or contact condition in the drawing package.
- Copper grade or alloy
- Contact and mounting surfaces
- Coating and handling requirements
Electrical or thermal performance needs application-specific definition and verification.
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Steel / PROJECT PLANNING
Separate material condition from finished geometry.
Specify grade and material condition, then state any heat treatment and finishing requirement. The sequence of operations should be reviewed together with the dimensions that control assembly.
- Grade and material condition
- Heat treatment if required
- Final inspection state and finish
Do not assume a heat treatment or hardness from a photograph. Include it as an explicit requirement.
Discuss steel requirementsYOUR DRAWING DEFINES THE ROUTE
Have a specific grade in mind?
Share it with the drawing, quantities and any inspection or compliance requirements.
Discuss the materialPlastic / PROJECT PLANNING
Identify the polymer before choosing a route.
A polymer name, grade and environment help define how a plastic component should be reviewed. Include fit, wall features and any temperature or media exposure relevant to the application.
- Polymer and grade
- Fit and operating environment
- Surface, edge and visual acceptance
Polymer families are not interchangeable. The exact material and part requirements need project review.
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Define the
finished condition.
Surface finish planning | Finish discussion | What it concerns | What to specify |
|---|---|---|
| As-machined | Visible cutting texture and edge condition | Define surface roughness where function requires it; specify burr removal and edge breaks. |
| Anodizing | Aluminum appearance and surface treatment | State type, color/reference sample, masking and which dimensions apply after treatment. |
| Passivation | Specified stainless-steel surface treatment | State the applicable process requirement, cleanliness and required documentation. |
| Plating | A specified deposited coating | Define coating system, thickness, substrate, masking and final functional dimensions. |
| Blasting / brushing / polishing | Specified texture or visual surface | Identify treated faces, direction or appearance standard, and features that must be protected. |
Planning options, not a blanket process or performance commitment. Availability and the treatment route are confirmed for each drawing and material.
QUALITY & ACCEPTANCE
Make the important
dimensions explicit.
Capability cannot be established from a generic tolerance headline. Share the geometry, material, specified limits and inspection method for your actual component.
Define my sample acceptance01
Identify functional datums and fits
Explain the mating part and the dimensions that control assembly.
02
Agree the inspection scope
Define measurement methods, sample plan and any records required.
03
Review before repeat production
Confirm the approved revision and review changes before a new run.
Before you send
the drawing.
What files should I send?
A dimensioned drawing with revision, material and finish is the starting point. A STEP model can help communicate geometry. Include quantities and the critical acceptance requirements.
Can you confirm a tolerance from a photograph?
No. A photo illustrates the part form. Feasibility must be reviewed against the actual geometry, material, dimension, tolerance and inspection method.
Can I start with samples?
Include the requested sample quantity and the checks needed for approval. Sample scope and the intended production order are reviewed together.
How are price and lead time confirmed?
The quotation confirms the reviewed scope, material, quantity, inspection requirements, price and schedule. Website examples do not constitute an offer or an accepted production order.
FROM EXAMPLE TO YOUR REQUIREMENT
Found something
close to your part?
Send your drawing
Use an example to explain your idea.
Your own drawing defines the final specification.
FROM PROCESS TO REQUIREMENTS
Check the process. Agree the next step.
See the workshop context, compare relevant component geometries and define how your samples will be checked.
Send the current drawing with quantities and critical requirements. The review is the starting point for agreeing scope, quotation and sample approval.
Request a drawing reviewSEE THE PROCESS IN MOTION
Watch the work.
Look at the details.
Explore Chengshuo’s published machining and workshop films. The project review connects your drawing to a proposed manufacturing and inspection route.
Chengshuo footage7 sec
Milling, workholding and tool access
Machine-interior views show the spindle, cutting tool and held components.
How will tool access, clamping references and secondary features be defined?
Pocketed positioning blocksReview my part with this process Chengshuo footage6 sec
Turning and milling in motion
A close look at material removal, followed by digital process planning.
Which diameters, shoulders and thread features control your assembly?
Shafts, pins & mating fitsReview my part with this process Every component starts with a specific requirement. We review its material, geometry and inspection needs before confirming the machining route.
Explore process filmsBefore releasing a milled part
Check access, contact and inspection
Review the features that determine whether the part can be machined, assembled and inspected as specified.
Internal Pocket Corners: Match the Milling Radius to the Mating Part
Compare the pocket corner with its insert before approving a radius or relief.
Flange Flatness and Parallelism: Specify the Inspection State
Distinguish face flatness from parallelism and state the inspection restraint.
Deburr, Edge Break or Chamfer? Write a Drawing Note You Can Inspect
Identify the edges to break, the surfaces to protect and the acceptance method.