Fabrication and shop drawings straight from the 3D model, to AS 1100. Bills of material, weld schedules, bolt callouts, hole patterns and finish notes all included, ready to hand to the fabricator. No guesswork, no last-minute calls from the workshop.
Fabrication drawings are the production documents that tell the workshop exactly what to cut, drill, weld, paint and assemble. They are produced from a fully detailed 3D model, not traced manually, so dimensions, hole patterns, weld throats and BOMs are consistent across every sheet.
The drawings are created by an engineer, not a draftsman following someone else's design. Where the design intent is unclear, ambiguous or non-buildable, it is resolved before the drawing is issued. The fabricator works from a complete document, not a starting point.
A complete drawing package is more than just dimensioned views. The deliverable below is what leaves the studio for every fabrication scope.
The headline drawings: principal dimensions, datums, member identification, key interfaces and overall envelope. The drawings the project manager, site team and reviewer all reference back to.
The workshop drawings: every member detailed individually with profiles, lengths, hole patterns, edge distances, copes, notches, weld preparations and surface treatment. Drawn at a scale and clarity the cutter, driller and welder can read directly.
Sub-assembly and assembly drawings showing how parts come together: weld locations, bolt-up sequence, fit-up tolerances and any temporary work or jigging required. Includes part and weld sequence notes where assembly order matters.
Every member, plate, fastener and consumable listed with grade, finish, quantity and reference back to the drawing where it appears. Provided in PDF and Excel for direct use in procurement and shop scheduling.
Weld type, size, length, category (SP / GP) and inspection level callouts, referenced to AS/NZS 1554 and consolidated in a project weld schedule. Weld symbols on drawings comply with AS 1101.3.
Bolt grades, sizes, hole tolerances and bolt-group references for every bolted connection. Compatible with AS/NZS 1252 and the structural designer's connection capacity table.
You receive a drawing pack you can build from on day one, no chasing the design office for missing dimensions, no guesswork on weld throats, no half-detailed BOMs. Drawings issued in PDF and DWG, with native 3D models available where you have downstream CAM systems to feed.
Your design intent is honoured. Calculations and design notes flow through to the drawings exactly, not interpreted by someone disconnected from the engineering. Where the brief throws up a constructability issue, it is flagged and resolved with you, not silently re-designed at the drawing board.
One studio, one point of accountability for both engineering and documentation. Revisions tracked, drawings versioned, RFIs answered the same day. No interface risk between separate engineering and drafting suppliers.
For projects where the structural and mechanical scope needs to land cleanly into a wider build, the drawing pack is coordinated with architectural intent and the construction sequence. Interface dimensions, embeds and tolerances are explicit on the drawings.
Drawings are not just a visual deliverable, they are the contractual document the fabricator builds against. Senger drawings are produced to the technical standards that govern the discipline.
Senger Engineering either uses your existing 3D model (SOLIDWORKS, Inventor, STEP, IGES) or builds the model from your sketches, calculation package and design notes. Where the model is provided, it is reviewed for completeness before drafting begins.
Sheet structure is planned upfront: how many sheets, what scale, what grouping (by sub-assembly, by member type, or by fabrication batch). Drawing register issued for client review at this stage.
GA, fabrication, shop drawings, BoM and weld schedule produced concurrently from the model so dimensions and quantities stay consistent across the package. Internal QA pass before client review.
Drawings issued for review with a complete revision register and clouded changes against the previous version. One revision round is included in standard scope; further rounds quoted as variation.
Drawings released as IFC (Issue For Construction) in PDF and DWG, with native 3D model where requested. RFIs from the workshop responded to the same day and revised drawings re-issued through the same revision register.
| Deliverable | Standard / reference | Format |
|---|---|---|
| General arrangement drawings | AS 1100 | PDF · DWG |
| Single-part fabrication drawings | AS 1100 · AS/NZS 5131 | PDF · DWG |
| Sub-assembly & assembly drawings | AS 1100 | PDF · DWG |
| 3D model (native) | SOLIDWORKS | SLDPRT · SLDASM |
| 3D model (neutral) | n/a | STEP · IGES · STL |
| Bill of materials & cutting list | n/a | PDF · XLSX |
| Weld schedule | AS/NZS 1554 · AS 1101.3 | |
| Bolt & connection schedule | AS/NZS 1252 | |
| Surface treatment & finish notes | AS/NZS 2312 | |
| Drawing register & revision history | n/a | PDF · XLSX |
Yes. Where a 3D model already exists in SOLIDWORKS, Inventor, Revit, or as a STEP / IGES export, the drawing scope can be quoted independently of the design phase. The model is reviewed for completeness and constructability before drafting begins, with any gaps or ambiguities raised with the client upfront.
That is also covered. The studio will model up the design in SOLIDWORKS from sketches, calculation packages and design notes, and produce the full drawing pack from that model. Where the sketches or calculations don't fully define a member or connection, the gap is closed via design discussion before drafting commences.
Native SOLIDWORKS files (SLDPRT, SLDASM, SLDDRW) are provided where requested. STEP and IGES exports are standard for CNC, plasma, laser and waterjet workflows. DXFs of individual parts can be flattened from the model on request for direct nesting into the cutter.
Drawings issued for fabrication (IFC) are tracked in a revision register. Any change, from a design adjustment, an RFI, or a workshop request, is captured against a new revision number, with clouded changes on the affected sheets and a brief revision note explaining what changed and why. The fabricator always works from the latest revision.
For a moderate scope (model already provided, around 40-80 drawing sheets), drafting completion within 10-15 business days is typical. Smaller packages turn around in days. The schedule is confirmed in writing at engagement and tracked against milestone dates as work progresses.
The drawings are produced to AS 1100 and the standards listed above, which is the technical baseline expected by certifiers and council reviewers. Where a project requires additional third-party engineering certification, the drawings cleanly reference that certification by document number.
Existing 3D model, sketches on a napkin, or a calculation package with no drawings yet, send what you have. A scoped drawing quote is typically returned within forty-eight hours.