From controlled geometry to a buildable record.
CAD to ERP workflow for elevator manufacturing means turning approved design geometry into a revision-controlled bill of materials that purchasing and production can use without reinterpreting the drawing. The workflow exists to preserve part identity, quantity, specification, and revision through buying, fabrication, installation, and the final as-built record.
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A CAD to ERP workflow is an engineering-to-production data handoff, not merely a file export. CAD describes geometry and design relationships. A bill of materials describes what must be made or acquired. Purchasing needs supplier-ready requirements, while production needs released instructions and available material.
The workflow creates an explicit chain between those different views of the same elevator cab. Each handoff has an owner, an input, an output, and a release condition. If a receiving department has to infer a unit, finish, quantity, part boundary, or revision, the handoff is incomplete.
CAD BOM ERP integration does not remove engineering judgment. It makes that judgment visible and repeatable. The related elevator submittal approval process establishes the approved design basis before downstream release.
Sales, survey, specification, and approved submittal information become buildable geometry. This handoff owes engineering verified dimensions, named assumptions, finish selections, interfaces, exclusions, and the governing drawing revision. Engineering owes the next stage a model whose components reflect how the elevator cab will actually be fabricated or bought.
The model becomes a bill of materials with one controlled line for each make, buy, or subcontract requirement. This handoff owes purchasing an identifiable part, description, quantity, unit, material, finish, revision, and make-or-buy status. Geometry alone is not a purchasing instruction; the BOM must explain commercial identity as well as physical shape.
Purchasing resolves approved BOM lines to vendors, quotes, minimum orders, lead times, and purchase orders. This handoff owes the buyer a released revision and enough specification to order without interpretation. Purchasing owes production traceable order references, promised dates, substitutions requiring approval, and a clear record of shortages.
Received material and bought-out components are matched to the released job package before work starts. This handoff owes the shop the correct material, current drawings, cut information, routing, quantity, and disposition of exceptions. The shop owes quality and closeout records of what was consumed, changed, scrapped, reworked, or substituted.
The final handoff reconciles what was designed and ordered with what was made and installed. Approved deviations, field changes, substitutions, serial or lot references where required, and final drawings belong in the job record. Without that return path, the ERP record describes an intention rather than the delivered elevator cab.
Transfer failures usually occur where a visual model meets a transactional system. A clean-looking assembly can still produce an unusable purchasing BOM. Review these fields deliberately before release.
| Data field | How it fails | Required control |
|---|---|---|
| Units and tolerances | Length, area, thickness, or mass crosses systems without a unit, while model precision is mistaken for fabrication tolerance. | Store the purchasing unit and conversion rule explicitly; keep drawing tolerances with the released specification. |
| Part naming and numbering | Free-text names, duplicate numbers, or reused descriptions make different parts appear interchangeable. | Assign one governed identifier and a description convention that remains stable when wording changes. |
| Material and finish | The model carries appearance or shorthand, but omits grade, thickness, grain direction, coating, sample, or finish code. | Use structured material and finish fields tied to the specification and approved selection. |
| Assembly and purchased-part boundaries | A modeled assembly explodes into shop pieces when it should be bought as one item, or stays grouped when separate fabrication lines are needed. | Mark make, buy, subcontract, phantom, and reference-only boundaries before export. |
| Quantity, rounding, and yield | Exact model quantity is confused with purchasable sheet, length, package, minimum order, nesting allowance, or expected waste. | Keep design quantity, purchasing quantity, unit conversion, and yield assumption as separate values. |
| Revision identity | A BOM export loses the drawing revision or remains editable after release, so old and current requirements look equally valid. | Bind every released BOM and purchase reference to one immutable approved revision. |
A purchase order cut from a superseded revision commits cash and lead time to the wrong requirement. The error may not become visible until material arrives, a finished panel reaches inspection, or installation exposes a dimensional conflict. Recovery can require cancellation, expediting, replacement material, rework, and another production slot.
A filename such as FINAL, latest, or approved is not revision control. The release must identify the project, drawing set, revision, approval status, release date, BOM version, approver, and affected orders. Superseded revisions stay available for history but cannot remain eligible for new purchasing or shop release.
Final for Record discipline creates that boundary. Build It Track It holds engineering drawing revision history, the change-order approval, and the Final for Record lock today, so the controlled revision is unambiguous. Purchasing, purchase orders, inventory, capacity, and scheduling are planned for the Q3 2026 launch and are not available today; Build It Track It does not offer external ERP integration.
Start by releasing the engineering revision, then generate the BOM from that exact model state. Validate make-or-buy boundaries, required fields, units, quantities, yield, and changed lines before purchasing imports or enters anything. Preserve the source export rather than overwriting it, and record who checked the result.
Purchasing should reject a BOM that lacks a controlled revision or requires material interpretation. Custom items need vendor support rather than guessed prices. The elevator cab cost estimating guide explains when approved rate-library items fit and when a vendor quote is required.
The right integration approach depends on product repeatability, engineering volume, data governance, and the systems already in place. Automation does not correct weak part standards; it transfers the same weak data.
| Approach | Operating effort | Likely failure mode | Best suited to |
|---|---|---|---|
| Manual re-entry | Define the entry procedure, then enter and independently check every job. | Typing errors, omitted lines, inconsistent units, and no durable link to model revision. | Shops with occasional transfers, varied work, and a disciplined independent check. |
| Exported BOM file | Create and maintain column mappings, then validate every release. | Column mapping drift, overwritten files, stale exports, and flattened assembly logic. | Shops with structured CAD attributes and an ERP import that can be governed. |
| Middleware or PDM | Implement mappings, administer lifecycle rules, and resolve transfer exceptions. | Complex mappings hide ownership, while exceptions queue between systems. | Multi-engineer operations that need lifecycle, approval, and cross-system rules. |
| Native CAD in the operating platform | Maintain shared design, BOM, release, and exception rules in one product process. | Teams may accept generated output without checking manufacturing and purchasing rules. | Repeatable configured products where design rules and BOM logic share one data model. |
Build It Track It does not include a CAD engine or automatic CAD-to-BOM generation today or in its planned Q3 2026 launch; Build It Track It estimating remains the source of the person-entered priced bill of materials. CabStudio is the browser-based cab design engine planned for 2027; it is not available today, and model-driven configuration is the intent of that work rather than a shipped or committed feature. Read the current boundaries and roadmap on CAD design and the elevator cab configurator page.
A shop that can fix only one control should require every BOM, purchase request, purchase order, traveler, and shop packet to cite the same released revision. Define who can release it, what approvals are required, where it is locked, and how a later change withdraws affected downstream work. No integration method can compensate for two revisions appearing current.
Then standardize the smallest required BOM schema: part number, description, make-or-buy status, material, finish, quantity, unit, yield rule, and revision. Reject blanks that force the next person to guess. Audit one real job from approved model to as-built record and correct the point where identity is lost.
An elevator manufacturing ERP system can organize transactions, but release discipline still belongs to the operating process. The controlled engineering record must lead; purchasing and production must acknowledge it; the as-built record must close the loop.
A CAD to ERP workflow turns approved elevator cab design data into a revision-controlled bill of materials that purchasing and production can use. It preserves part identity, material, finish, quantity, unit, make-or-buy status, and revision from the detailed model through the as-built record.
Release one approved model revision, generate the BOM from that exact state, and validate part boundaries, required fields, units, quantities, yield, and changed lines. Preserve the source export and require purchasing to reference its revision when entering or importing lines. Reject any BOM that requires the buyer to infer material, finish, quantity, or approval status.
At minimum, each actionable BOM line should carry a governed part number, description, make-or-buy status, material, finish, design quantity, purchasing unit, conversion or yield rule, and drawing revision. Purchased and subcontracted items also need enough specification for a vendor to quote and supply the intended requirement.
CAD BOM exports fail when visual model properties do not match purchasing rules. Common causes are missing units, free-text part names, incomplete material or finish specifications, incorrect assembly boundaries, unhandled quantity rounding, and a lost or stale revision identity.
An exported spreadsheet can be workable when CAD attributes are structured, mappings are controlled, releases are preserved, and a person validates every transfer. It becomes unsafe when files are overwritten, column meanings drift, assembly logic is flattened, or purchasing cannot identify the governing model revision.
Clear revision identity prevents a purchase order or shop packet from being released from superseded engineering. Final for Record discipline makes one approved revision eligible for downstream work while preserving older revisions only as history.
Build It Track It does not offer external CAD or ERP integration. Drawing revision history, change-order approval, the Final for Record lock, and person-entered BOM estimating are available today; purchasing and purchase orders are planned for the Q3 2026 launch and are not available today. CabStudio is the browser-based cab design engine planned for 2027; it is not available today, and model-driven configuration is the intent of that work rather than a shipped or committed feature.
Standardize revision release first. Require every BOM, purchase request, purchase order, traveler, and shop packet to cite the same approved revision, define who can release it, and define how a later change stops affected downstream work. Once that identity is reliable, standardize the required BOM fields and system mappings.
Review Build It Track It's launch scope and roadmap, or request a walkthrough of the drawing revision controls.
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