Sheet Metal Prototyping and DFM Review
A prototype is where a design meets manufacturing. Reviewing it at that point costs nothing; finding the same problem after tooling and a production run costs the project.
What DFM Review Actually Changes
Design for manufacturing is not a checklist. It is the difference between a bracket that bends cleanly and one that cracks at the radius, a panel whose holes line up after forming and one that does not, a coating that survives the edge and one that peels back. We review your model or drawing before anything is cut and return the specific points that affect cost, tolerance or yield.
The prototype itself is built on the same equipment and to the same process as series production, so the part you approve is representative. That matters: a prototype made by a different method than the production part proves the design, but not the process.
A Closer Look at This Capability
Representative photographs of the equipment, the process and the parts produced.
Specifications at a Glance
| Parameter | Typical Specification |
|---|---|
| Input accepted | 3D models (STEP, IGES, X_T), 2D drawings (DXF, DWG, PDF) and sample parts |
| DFM review | Bend radii, hole-to-bend clearance, tolerance stack-up, material choice, finish and assembly sequence |
| Prototype route | Same laser cutting, forming and welding processes used in series production |
| Typical prototype lead time | 7-15 working days for a first-off part once the drawing is confirmed |
| First-article report | Available on request, with measured dimensions against the drawing |
| Tooling | Standard tooling in most cases; special tooling quoted separately if the geometry needs it |
| Transition to series | Prototype documentation carries into the production route without re-engineering |
| Iteration | Design changes between prototype rounds reviewed again before cutting |
The parameters above are representative of typical work in this category. Your drawing defines the final specification, and every quotation states the scope it covers.
What We Do in This Area
Every job is customised to your drawing. Use these categories as a starting point for your enquiry.
DFM Review Before Cutting
Bend radii, hole placement, tolerance stack-up and finish risks identified before material is committed.
| Input | Model or drawing |
| Turnaround | Typically 24 working hours |
| Output | Written points and recommendations |
First-Off and Small Batch Parts
Prototypes built on the same equipment and process as series production, so the part is representative.
| Quantity | 1 piece upward |
| Lead time | 7-15 working days |
| Process | Same as series |
Prototype to Series Production
Once the design is approved, the same route scales to production volumes without re-qualifying the part.
| Transition | Without re-engineering |
| Documentation | Carried forward |
| Batch size | Flexible |
Capability, Tolerances & Documentation
What we review
| Bend radius | Minimum for material |
| Hole placement | Clearance to bend |
| Tolerance | Stack-up check |
| Finish | Coating and edge risk |
Prototype scope
| Cutting | Laser |
| Forming | Press brake |
| Joining | Weld and hardware |
| Finish | Coating available |
Documentation
| Report | First-article on request |
| Drawings | Marked up with notes |
| Route | Carried into production |
| Changes | Reviewed again |
Where This Fits in the Production Route
Every project starts with the drawing. We check bend radii against the material, look for holes and features placed too close to a bend line, review tolerance stack-ups where several parts meet, and confirm the finish is compatible with the process. You receive the points that matter, with a recommendation for each. If the design is ready, the prototype is cut, formed and finished on the same equipment that will run the series order, measured against the drawing, and then the documentation moves with it into production.
- Drawing review with DFM feedback before production release
- Fiber laser cutting of the complete flat pattern in one set-up
- CNC press-brake forming, welding and grinding
- Coating applied before gaskets, hardware and glass are fitted
- First-article and sample inspection recorded for each batch
Common Questions
DFM review is a check of your design against what the process can actually achieve — bend radii, hole clearance to bends, tolerance stack-up, material and finish. It is part of quoting, so it is not billed as a separate service.
Typically 7-15 working days for a first-off part once the drawing is confirmed. The exact time depends on the number of operations, finishing requirements and hardware.
Yes. Prototypes run on the same laser cutting, forming and welding equipment as series production, so an approved prototype is representative of the part you will receive at volume.
Yes, though a drawing with tolerance and finish notes helps. Where the model is ambiguous, we confirm the critical dimensions with you before cutting.
Bend radii that are too tight for the material, holes and slots placed too close to a bend line, tolerance stack-ups where several parts meet, and coating that cannot cover a sharp laser edge cleanly. All are inexpensive to fix at design stage.
Yes. The prototype documentation carries into the production route, so the part does not have to be re-qualified when volume increases.
Send Us Your Drawing
Tell us what you need made, the environment it works in and the quantity — we will return engineering feedback and a quotation, typically within 24 hours on working days.