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TEHNORA, Mechanical design office
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Service 02

Technical documentation

3D modelling and technical documentation: workshop and manufacturing drawings.

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Service data REV 2026.08
Software SOLIDWORKS · DraftSight
Deliverables 3D models · drawing sets · bills of materials
Lead time Depends on how demanding the project is.
Price Fixed, per project
01 Scope

What is delivered.

A drawing set a workshop can build from without a phone call. Scope is fixed in writing before work starts; anything not listed here is quoted separately.

01 3D modelling Parts and assemblies modelled from a concept, a sample or an existing drawing, built parametrically so a change propagates to every sheet.
02 General arrangement drawings Overall views with principal dimensions, mounting interfaces and service envelopes, issued as the reference sheet for the assembly.
03 Detail drawings One part per sheet, fully dimensioned and toleranced, with material, finish and quantity stated in the title block.
04 Assembly drawings Balloon callouts against a bill of materials, exploded views where an order of assembly needs stating, and torque or fit notes where they matter.
05 Section and detail views Sections, part sections and enlarged details where a feature cannot be read from the principal views.
06 Geometric tolerancing Datum schemes and feature control frames applied where fit or function depends on them, rather than tolerancing every dimension by default.
07 Weld and fabrication callouts Weld symbols, cut lists and bend tables issued on the sheet, so the fabricator works from the drawing and not from a separate note.
08 Bills of materials Item, quantity, material and description issued on the drawing, structured to match your part numbering where one exists.
09 Revision control Every issue carries a revision index and a change note stating what moved, so a workshop can tell two sheets apart at a glance.
02 Engage TEHNORA when

A / Documentation

The design is done, but the drawings are not.

Models or sketches are agreed internally, but nothing is dimensioned, toleranced or released, and the build is waiting on paper.

B / Consistency

Your drawings have grown inconsistent.

Sheets come from several hands over several years, with no common template, tolerance class or revision scheme.

C / Handover

Documentation has to leave the company.

Documentation is going to a supplier, a certifying body or a client, and it has to be complete and legible without the author standing next to it.

03 Process

Five steps, stated inputs.

Each step names what TEHNORA needs from you, so the delivery date holds.

01 Input received Existing 3D data, 2D drawings, sketches, photographs or a physical sample, whichever exists. TEHNORA states what is missing before quoting.

Required from you

What the documentation is for (fabrication, assembly, procurement or handover) and any existing CAD, drawings or part numbering.

02 Quote A written quote follows with the scope, fixed fee and delivery date. If you want an NDA, it is signed first. The quote names every sheet to be issued.

Required from you

Written confirmation of the scope and the delivery date. Countersigned NDA, if you asked for one.

03 Modelling Parts and assemblies modelled or rebuilt parametrically, with mates, configurations and interference checks resolved before any sheet is drawn.

Required from you

Confirmation of materials, stock sizes and supplier constraints that the model has to respect.

04 Drawing production Views, sections, dimensioning, tolerancing, weld and finish callouts and the bill of materials, issued on your sheet template.

Required from you

Your drawing template, title block and tolerance defaults. One review (call or marked-up PDF) inside the agreed window.

05 Issue and revisions Native and neutral formats issued together under a revision index, with a change note per issue.

Required from you

Consolidated comments per revision cycle, so the index stays readable.

04 Deliverables
Issued on delivery
DeliverableFile format
3D part models SLDPRT · STEP · IGES
Assembly models SLDASM · STEP
General arrangement drawings SLDDRW · PDF · DWG
Detail and assembly drawings SLDDRW · PDF · DWG
2D drawings for legacy workflows DWG · DXF
Bill of materials PDF · XLSX
Flat patterns where sheet metal appears DXF · DWG
Mesh models for print or inspection STL
Native files are issued at the SOLIDWORKS version agreed in the scope. Neutral formats accompany every native delivery.
05 Related projects
PRJ-0008 Drawing sheet Industrial table saw. Machine building Technical documentation Cast + machined Client confidential (Machine building sector) PRJ-0004 Drawing sheet Dual-purpose hydrant, assembly and section. Water & utilities Technical documentation Cast + machined Client confidential (Water & utilities sector)
All projects →
06 Software and standards

SOLIDWORKS

Part and assembly modelling, drawing production, configurations and bills of material. Native files issued at the version agreed in the scope.

DraftSight

2D drawing production and legacy DWG work, for archives and suppliers that stay in 2D.

Drawing standards

Drawings are issued on your sheet template, title block and tolerance defaults. Where none is supplied, TEHNORA issues on its own sheet format and states the projection method and general tolerance class on every sheet.

Certification relevant to this service

CSWP is examined on drawing production as well as modelling: views, sections, dimensioning and bills of materials to a timed standard. That is the whole of this service.

CSWP Certified SOLIDWORKS Professional Mechanical Design
CSWPA-SM Certified SOLIDWORKS Professional Advanced Sheet Metal
Festo PN111 Modern Industrial Pneumatics
07 Frequently asked questions
01 Who owns the IP, and is an NDA signed?

Files are treated as confidential. If you want an NDA, it is signed before you send any files; it can be yours, or TEHNORA issues one. Models, drawings and source data are yours on final payment; TEHNORA keeps no reuse right and no derivative library.

02 Can you work to our drawing template and standards?

Yes. Supply the sheet template, title block, tolerance defaults and part numbering, and the set is issued in your house format. Where none exists, TEHNORA issues on its own sheet format and states projection method and general tolerance class on every sheet.

03 Do you produce drawings from models we already have?

Yes, and it is the common case. Supply native SOLIDWORKS or a STEP file and the set is drawn from it. Where the model has to be rebuilt to be drawable, that is stated in the scope before work starts, not afterwards.

04 How are revisions handled?

Every issue carries a revision index and a change note listing what moved. Revision cycles inside the agreed scope are covered by the fixed price; a scope change is re-quoted in writing before work continues.

05 What are typical lead times?

It depends on how demanding the project is, driven by sheet count rather than the complexity of any one part. The committed date is written into the quote with the fee, before work starts.

08 Enquiry

Send your drawings and request a quote.

Attach drawings, models, sketches or photographs. A written quote stating scope, fee and delivery date follows by email.

info@tehnora.hr +385 95 517 2246

Project enquiry Rev A · not sent

The quote, with scope, fee and delivery date, is sent to this address.

Duty, envelope, material, quantity, drawing standard: whatever is known.

Attach drawings, models or photographs Optional

Up to 18 MB per enquiry. Send anything larger as a download link (WeTransfer, Google Drive or a similar service).

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