Sheet Metal Design Services — DXF Flat Patterns & Drawings
Guenzo designs sheet metal parts and assemblies that are ready for laser cutting, punching, bending, welding and powder coating. We provide bend-ready 3D models, DXF flat patterns, and drawings that match real-world manufacturing tolerances.
What Guenzo Designs in Sheet Metal
Guenzo designs sheet metal parts and assemblies and prepares the documentation your fabrication supplier needs. Cutting, bending, welding and finishing are done by your supplier; Guenzo's work is the design, the flat patterns and the drawing package.
- Enclosures, housings and electronics chassis
- Folded parts, brackets, mounts and covers
- Sheet metal assemblies joined with fasteners, rivets or welds
- Welded sheet metal assemblies and welded steel frames, where the design calls for them
- Sheet metal products developed from a sketch or concept to a fabrication-ready design
- Existing designs reviewed and reworked for sheet metal manufacturing
Bend Data and Flat Patterns
A flat pattern is only correct if the bend data behind it matches how the part will be formed. Bend radii and bend allowance or K-factor are set in the model, matched to your supplier's tooling and material where that information is available, and the flat pattern is generated from the model rather than drawn separately.
- Bend radii suited to the material and thickness
- Bend allowance or K-factor from your supplier's data where available, otherwise typical values for the material, flagged for confirmation
- Bend and corner reliefs to prevent tearing and collisions
- DXF flat patterns for laser cutting and CNC punching, one for each part
- Bend lines and bend direction shown on the flat pattern drawing
Who this service is for
- Companies building industrial enclosures or frames
- Electronics companies needing chassis and brackets
- OEMs working with laser cutting and bending suppliers
Problems we solve
- Sheet metal models built without proper K-factor — flat patterns are wrong
- Suppliers quoting high because of unclear or impractical geometry
- Bend collisions, missing reliefs, unreachable welds
- Inconsistent enclosure families across products
Deliverables
- SolidWorks sheet metal parts with correct K-factor
- DXF flat patterns for laser cutting / punching
- PDF manufacturing drawings (bend lines, hole tables, GD&T)
- Weldment and assembly drawings
- STEP and Parasolid exports
- Material and gauge recommendations
Software we use
- SolidWorks Sheet Metal
- SolidWorks Weldments for frames
- DraftSight / AutoCAD for DXF cleanup
- STEP / Parasolid for neutral exchange
Supported manufacturing methods
- Laser cutting and fibre laser
- CNC punching
- Press-brake bending
- MIG / TIG / spot welding
- Powder coating, anodising, zinc plating
Example projects
- Industrial electronics enclosure for laser + bending
- Sheet metal chassis for a machine or workstation
- Brackets and mounts for production lines
- Conversion of welded structures into bolted sheet metal assemblies
Process
- Design input: Sketches, existing CAD or parts, the components to house or support, material, thickness, finish and your fabrication supplier where known.
- Sheet metal modelling: Parts and assemblies built as SolidWorks sheet metal, with bends, flanges, reliefs and hardware positions defined.
- Bend and manufacturing review: Bend radii and K-factor or bend allowance matched to the supplier's tooling where known; reliefs, bend clearances and weld access checked.
- Flat pattern and DXF: Flat patterns generated from the model and exported as DXF for laser cutting or punching.
- Drawings and BOM: Fabrication and production drawings with bend lines, bend tables, hole tables and weld information, plus the BOM for each assembly.
- Supplier-ready package: DXF, PDF drawings, BOM, STEP and native SolidWorks files, ready to send to your fabrication supplier for quoting and production.
Design for Sheet Metal Manufacturing (DFM)
Sheet metal parts cost less and fabricate more reliably when the geometry suits the process. Each design is checked for how it will be cut, bent, joined and finished, and existing designs can be reviewed the same way before they go out for quotation.
- Flange lengths and bend sequences that can be formed on a press brake
- Holes and cut-outs kept clear of bends
- Weld access and joint design for welded assemblies
- Consistent thicknesses and bend radii to simplify fabrication
- Finishes such as powder coating or plating taken into account
Fabrication and Production Drawings
Each part and assembly is released with the drawings a fabricator needs to quote, make and check it.
- Part drawings with flat pattern views, bend lines, bend tables and hole tables
- Assembly drawings with item balloons and a bill of materials (BOM)
- Weldment drawings with weld symbols for welded assemblies and steel frames
- Material, thickness and finish stated on each drawing
- Tolerances and GD&T where the function requires them
Supplier-Ready Package and Quoting
The finished package gives a fabrication supplier what it needs to quote and produce the parts.
- DXF flat patterns for every sheet metal part
- PDF fabrication and assembly drawings
- BOM for each assembly
- STEP and Parasolid exports, plus native SolidWorks files
- Help with supplier questions during quoting, as part of manufacturing support
Example client projects
- Sheet metal shrimp counter machine — Sheet metal machine assembly with DXF flat patterns, manufacturing and assembly drawings, and BOM.
- Custom gravel bag conveyor and hopper system — Sheet metal hopper and welded frame with fabrication drawings, sheet metal details and BOM.
Frequently Asked Questions
Can you design parts for sheet metal production?
Yes. We design parts using sheet metal best practices: correct K-factor, minimum bend radii, relief cuts, and DXF flat patterns matched to your supplier's machines.
Do you provide DXF flat patterns?
Yes. Every sheet metal part is delivered with a DXF flat pattern and a PDF drawing showing bend lines and hole layout.
Do you design enclosures and other folded sheet metal parts?
Yes. Enclosures, chassis, brackets, covers and other folded parts are modelled as SolidWorks sheet metal, with bends, reliefs and hardware positions defined, and released with DXF flat patterns and drawings. Fabrication itself is done by your supplier.
Which bend radius and K-factor do you use?
Where your supplier provides its bend data — punch and die radii, K-factor or bend allowance tables — the model uses it, so the flat pattern matches how the parts will be formed. Without that data, typical values for the material and thickness are used and flagged for the supplier to confirm.
Do you prepare fabrication drawings for welded assemblies?
Yes. Welded sheet metal assemblies and steel frames are modelled in SolidWorks, and their drawings show weld symbols, the parts and BOM, and the dimensions needed to assemble and check the weldment.
Can you check an existing sheet metal design before it goes to a supplier?
Yes. An existing model or drawing set can be reviewed for bend feasibility, reliefs, hole-to-bend clearances, weld access and flat pattern accuracy, then corrected or reworked where needed before it is sent for quotation.
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.