Assembly of a scissor lift table open in 3D CAD, with the sub-assembly tree

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Mechanical design

From concept to drawings the workshop can put on the machine.

CAD 3DSheet metalGD&TDetail drawingsBill of materialsSTEP / IGES

What it's about

Mechanical design service for machine builders and manufacturing companies: special machines, line equipment, steel structures and sheet metal components. We work as an external engineering office: we take the job from the initial requirement and deliver it ready for production.

The 3D model isn't the result: it's the tool. The result is functionally dimensioned drawings, correct bills of materials and commercial components that really exist in catalogues, with verified lead times.

Drawing of a drilled plate: hole spacings, diameters and threads for whoever machines it

8Activities included

4Work stages

6Deliverables

24 hFirst reply

What design work really looks like

The images on this page are not presentation renders: they are the CAD windows during the work. Every dimension in a sketch, every mate in an assembly and every tolerance on a drawing is a decision taken by the designer, one by one, thinking about how the part will be machined and assembled.

It is manual work in the best sense of the word: the software does not decide where to put a hole, how much clearance to leave on a pin or which view the machinist needs. The screenshots below show the typical steps of a job: the dimensioned sketch, the constrained sub-assembly, the manufacturing drawing.

Dimensioned sketch: the profile of a support comes from dimensions and relations, not from a shape drawn by eye

Sub-assembly with its mates: every component is constrained as it will be at assembly

Drawing of a turned pin, with section view, chamfers and threaded hole

General assembly of a scissor lift table, with the sub-assembly tree

What it includes

Parametric 3D modellingParts and assemblies built with a readable, editable feature tree, not a monolithic block to redo for every variant.

Special-purpose machines and fixturesBenches, presses, workstations, welding jigs and test fixtures to customer specification.

Steelwork and welded structuresFrames in sections and sheet metal, with cutting lists, weld preparations and welding sequences to limit distortion.

Sheet metal and flat patternsFlat patterns with a K-factor calibrated on the supplier's press brake, minimum radii, cut-outs and nesting.

Detail drawingsViews, sections, functional dimensioning, dimensional and geometric tolerances, roughness, treatments and inspection notes.

Bills of materials and revisionsMulti-level structured BOM, consistent part numbering, management of revisions and change indices.

Reverse engineeringRebuilding the 3D model from direct measurement or scanning, for out-of-production spare parts and retrofits.

Design for manufacturingReviewing the geometry to reduce machining, set-ups and scrap while keeping the same function.

How we work

Requirements and constraintsWhat the machine must do, in what cycle, within which envelope and interfaces. This produces a written specification that we share with you.
Layout and conceptOne or more schematic layouts with overall dimensions and the main commercial components, to choose the approach before modelling.
Modelling and verificationComplete 3D assembly, interference and travel checks, sizing of critical components and verification of catalogue components.
Manufacturing drawings and deliveryAssembly and detail drawings, bill of materials, exchange files and support to the workshop during construction.

What you receive

Native 3D modelSTEP / IGES / neutral formatsPDF and DWG drawingsBill of materials in PDFAssembly diagramsList of commercial components

FAQ

Do you also do just the detail drawings?

Yes. If you already have the 3D model and only need the manufacturing documentation, we take on that part: views, dimensioning, tolerances and bill of materials.

In what format do you deliver the files?

The native format of the CAD system we work with, plus neutral STEP and IGES, drawings in PDF and DWG. If your technical office uses another system, we agree the format before starting.

Do you also follow construction in the workshop?

Yes, support during fabrication is included: clarifications on the drawings, handling of changes that arise on the shop floor and updating of revisions.

How we work together

This service is activated with one of the three collaboration options: a closed per-project job, a monthly bank of hours as an external technical office, or a one-off job with a narrow scope. The option is chosen together at the offer stage, depending on how well defined the work is.

Written quoteScope, timeline, cost and list of deliverables, before starting.

Reply within 24 hoursA substantive first reply within one working day of the request.

NDA on requestNon-disclosure agreement signed before we receive your files.

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Mechanical design

We start from what you already have

A drawing, a photo, a specification or even just the problem described in words: that's enough for a first concrete answer.

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