Technical Drawing Services — ISO & ANSI Manufacturing Drawings
Guenzo produces 2D manufacturing drawings, BOMs and assembly documentation that your suppliers and shop floor can actually work from. Drawings follow ISO or ANSI conventions and include GD&T, surface finish, datums and inspection-friendly dimensioning.
From Existing 3D CAD to Manufacturing Drawings
Many companies already have 3D models but no drawings a supplier can quote or manufacture from. Guenzo takes the existing CAD model — native SolidWorks files, or a STEP model exported from another CAD system and imported into SolidWorks — and prepares a complete manufacturing drawing package from it.
- Native SolidWorks parts and assemblies (SLDPRT, SLDASM)
- STEP or Parasolid models exported from other CAD systems
- Single parts, sub-assemblies or complete assemblies
- Existing drawings that need correcting, completing or moving to your company template
- Markups, supplier comments or notes on what the drawings must show
What a Manufacturing Drawing Package Includes
Each package is put together for the parts and processes involved, so not every item applies to every job.
- Part drawings for each manufactured component, with the views, sections and details needed to make it
- Assembly drawings with item balloons and a bill of materials (BOM)
- Dimensions and tolerances, with GD&T and datums where the function requires them
- Surface finish requirements
- Material and finish specifications, where applicable
- Weld symbols and fabrication notes for weldments and steel structures, where applicable
- Bend information and flat patterns for sheet metal parts
- Title block and revision table, in your company template if you have one
Who this service is for
- Companies with 3D CAD but no drawing capacity
- Suppliers requesting drawings for quoting and production
- Engineering teams preparing a release package
Problems we solve
- 3D CAD with no drawing pack — suppliers cannot quote
- Drawings without GD&T, datums or surface finish callouts
- Inconsistent drawing style across products and engineers
- Missing or out-of-date BOMs and assembly instructions
Deliverables
- PDF manufacturing drawings (single parts, assemblies, weldments)
- GD&T, surface finish, datum schemes
- Bills of Materials (BOM)
- Assembly and exploded-view drawings
- Drawing templates in your company style
Software we use
- SolidWorks Drawings (SLDDRW)
- DraftSight / AutoCAD for 2D and DXF
- PDF/A for archive-quality drawing release
- Custom company drawing templates and title blocks
Supported manufacturing methods
- Drawings for CNC milling, turning, EDM
- Sheet metal drawings (bend tables, flat patterns)
- Weldment and fabrication drawings
- Assembly, exploded-view and inspection drawings
Example projects
- Drawing pack for a mechanical assembly going out to quote
- Weldment drawings for a steel frame
- Assembly and pick-list drawings for a production line
Process
- CAD model received: Native SolidWorks files, or STEP / Parasolid models exported from another CAD system, for single parts or complete assemblies.
- Drawing requirements reviewed: Manufacturing process, supplier, drawing convention (ISO or ANSI), title block, sheet sizes, datums and the dimensions critical to function.
- Drawings prepared: Part drawings and assembly drawings with the views, sections and dimensions needed to make each item.
- GD&T, BOM and manufacturing information: Tolerances and GD&T, surface finish, materials, weld and fabrication notes where applicable, and the bill of materials.
- Review and revision: Drawings are checked against the model, you review the set, and changes are made and recorded as a new drawing revision.
- Supplier-ready package delivered: PDF drawings, native drawing files, BOM and STEP, ready to send to your supplier for quoting and production.
GD&T, Tolerances and Manufacturing Information
The 3D model shows the geometry; the drawing tells the supplier which features matter and how accurately they must be made. Tolerances are applied where the part's function needs them, and general tolerances cover the rest, so parts are not made more expensive than they need to be. Drawings follow ISO or ANSI conventions.
- Datums chosen from how the part is located, assembled and inspected
- Tolerances and GD&T on functional features such as fits, mating faces and hole patterns
- General tolerances for non-critical features, stated on the drawing
- Anything that depends on information not in the model flagged for you to confirm
Revision Control and Drawing Updates
Drawings change as the design changes. When a model is updated, the affected part drawings, assembly drawings and BOM are updated with it and issued as a new revision, with the change recorded on the drawing, so suppliers work from the current issue.
- Existing drawings corrected, completed or moved to a new template
- Drawing updates after design changes or supplier feedback
- Ongoing drawing work as part of long-term CAD support
Files Delivered and Supplier Handover
The finished package is prepared to go straight to a supplier for quoting and production.
- PDF drawings for quoting, production and inspection
- Native SolidWorks drawing files (SLDDRW) for future changes
- Bill of materials for each assembly
- STEP models of the parts, which suppliers can use directly, for example for CNC programming
- DXF flat patterns for sheet metal parts
Example client projects
- Adjustable welded steel table frame — Weldment with tube cut information and fabrication drawings, prepared in SolidWorks.
- Sheet metal shrimp counter machine — PDF manufacturing and assembly drawings, DXF flat patterns and BOM.
- Structural steel platform for heavy equipment — Structural steel fabrication and assembly drawings, cut lists and BOM.
- RarePower — steel structures and furniture — Designs and fabrication drawings for structural steel and furniture, including a V-leg table and a steel Christmas tree.
Frequently Asked Questions
Can you prepare manufacturing drawings?
Yes. We prepare drawing packs that suppliers can quote and produce against, with GD&T, BOM, and assembly documentation.
Can you make manufacturing drawings from 3D models we already have?
Yes. Send the native SolidWorks files, or a STEP or Parasolid export from your CAD system, and Guenzo prepares the part and assembly drawings from that model. Your geometry is used as it is; anything that looks unclear for manufacturing is raised with you rather than changed without agreement.
Do you prepare assembly drawings and bills of materials?
Yes. Assembly drawings show how the parts go together, with item balloons that refer to a BOM listing part numbers, descriptions, quantities and materials. Sub-assembly drawings are added where the build sequence needs them.
Can you add GD&T and tolerances to a model that has none?
Yes. Datums are set from how the part is located and inspected, tolerances and GD&T are applied to the features that matter for fit and function, and general tolerances cover the rest. Drawings follow ISO or ANSI conventions, and any tolerance that depends on information we do not have is flagged for you to confirm.
Which files are in a finished drawing package?
PDF drawings for quoting and production, native SolidWorks drawing files, the BOM and STEP models of the parts. Sheet metal parts also get DXF flat patterns. Drawings can be set up in your own company template and title block.
Do you work with companies outside Latvia?
Yes. We work remotely with companies across Europe and internationally. Most projects are run by email, video calls, and shared cloud folders.
What CAD file formats can you deliver?
Native SolidWorks (SLDPRT, SLDASM, SLDDRW), STEP, IGES, Parasolid, STL for 3D printing, DXF for laser/waterjet/sheet metal, and PDF manufacturing drawings.
Can you sign an NDA before we share project details?
Yes. We routinely sign NDAs before reviewing concepts, sketches, or existing CAD data.
Related services
Request CAD design support
Send your project details, sketches, requirements or existing CAD files. Email info@guenzo.com or call +371 29830475.