An existing machined sample being reviewed with a caliper and an unmarked sketch

Machining from an Existing Sample

We can start from an existing part and work toward a drawing for manufacture. First we review its fit, material and any wear or hidden features; you approve the resulting specification before machining.

ISO 9001 certifiedMade to your drawing · Hangzhou, China

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What we need for the first review

Send photographs, overall dimensions, mating-part details and any existing drawings for the first review. We identify the measurements needed to define wear, hidden features and fitted geometry, including whether a physical sample is required.

a simple sample, idle caliper and sketch sheet for defining a new drawing
Retain
Overall dimensions, working faces, mating parts, bores, threads and sealing surfaces to retain.
Resolve
Separate wear and damage from the intended geometry. Establish hidden features, material and treatment, then record the requested design changes.
Approve
The intended fit, material, finish, model and drawing revision, and acceptance requirements for the new part.

What each stage delivers

We review the sample, prepare the manufacturing definition and machine the part in separate stages. The quotation covers measurement and modeling work, file formats and who approves each stage.

Machined housing beside schematic drawing views and a pencil
StageInputOutputApproval responsibility
Sample reviewPhotographs, overall dimensions, mating parts and available drawings; identify wear, damage and intended changes.A list of retained features, unknowns and measurements needed. Photographs support the initial review.Settle the review and measurement scope before reconstruction.
Geometry measurement and reconstructionThe sample and measurements or scanning needed for accessible and hidden geometry, including datum relationships.The agreed model and 2D / 3D drawings, with tolerances, material, finish and mating-fit requirements.Agree how inaccessible geometry and datum relationships will be established, which files and formats the quotation includes, and who may approve them.
Approved manufacturing definitionReviewed geometry, material, condition, finish, tolerances and acceptance requirements.The released model / drawing revision and a first-part acceptance plan.Approve the definition before machining; hold repeat production until the agreed first-part review is complete.

Replacement material and finish

Record the known specification, resolve unknowns and approve the replacement requirements before machining.

Material / scopeSpecificationFinish / treatmentConfirm for this drawing
Known materialProvide the existing specification, grade and condition if available.Record the known finish and any changes required.Confirm the specification on the approved drawing.
Unknown materialMark unknown grades or treatments explicitly.Specify the treatment or provide the material and finishing records needed to identify it.Agree how material and finish requirements will be established.
Replacement requirementsSpecify the intended application and mating components.Define cosmetic and working surfaces separately.Approve substitutions and acceptance requirements before machining.
Material and finish checklist

Approve the first part before repeat production

Review the measured part and its agreed records against the approved specification.

White and turquoise bridge coordinate measuring machine with a probe above its granite table
FeatureSpecify on the drawingAgree before production
First-part reviewQuantity, fit or functional checks, records and acceptance limits.Measurement or functional-test method, limits, records and authorized first-part approver, settled before repeat production is released.

Send the information available now

  • Sample photographs, overall dimensions, mating parts and intended use
  • Known material, finish and available drawings; mark unknowns
  • Wear, damage, features to retain and intended changes
  • Measurement / reconstruction scope, model and drawing deliverables, and approval authority
  • First-part quantity, fit or functional checks and acceptance limits
  • Expected repeat demand, delivery destination and requested date

You can order from 1 piece. Production takes 7-14 business days after drawing and order confirmation, including finishing. Shipping takes additional time. Your quotation confirms the schedule for the quantity and requirements agreed. Reconstruction and drawing-approval timing are agreed separately.

Request a quote

Add your name, destination country and preferred contact details. Drawings and a message are optional.

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