A cardboard PCB mockup can reveal that a board outline fits while its connectors are impossible to use. Build a nonfunctional representation of the perimeter, mounting locations and connector volumes, then try the real enclosure and unpowered cable plugs. It is a mechanical clearance check, not a working circuit board.
The cardboard board-mockup project shared by a KiCad user shows this physical-prototyping use of laser-cut outlines. Its value is testing an inexpensive shape before committing to a board order. It does not demonstrate electrical functionality or authorize processing actual PCB materials.
Start with one known dimension
Use an export format supported by the software and machine workflow you have verified. Do not assume that a native KiCad project opens directly in laser software. Include a dimensioned reference feature and check it after import; the SVG reference-square method helps catch a scale error before the mockup misleads you.
Select supplier-confirmed laser-safe, uncoated card with known composition. Do not put FR4, copper-clad board, unknown laminates or populated electronics into this workflow. Card is combustible: use the manufacturer's approved support, extraction and fire precautions, remain present throughout processing, and remove scraps before starting.
After cutting, take the card away from the laser. Add clearly labeled stand-ins for connectors and tall components by a suitable non-laser assembly method. Keep any actual electronics unpowered during mechanical checks. A printed connector rectangle represents its footprint, but cannot show plug overhang or cable bending space.
Test how the product will actually be assembled
Insert the mockup in the same direction as the future board. Position it at the intended height with a separate mechanical representation of the supports. Try installing the enclosure lid and reaching the fasteners. Then insert each intended unpowered plug without forcing it.
| X1S 2026 mockup feature | What it can reveal | What remains unproven |
|---|---|---|
| Cut perimeter | Collision with enclosure walls | Board stiffness |
| Mounting markers | Nominal fastener location | Screw strength and actual hole tolerance |
| Connector stand-ins | Lid and wall interference | Electrical function |
| Cable plug trial | Access and handling space | Full environmental performance |
The TYVOK X1S 2026 product format starts at 800 × 800 mm, with an 800 × 2000 mm expansion path. A large layout may hold several enclosure variants, but measure every exported variant separately. The work-area specification does not establish prototype accuracy or electronics-manufacturing capability.
Can the card replace the final board for standoff testing?
It can locate supports approximately, but its thickness, compression and bending differ from the final board. Confirm the support height and fastener engagement with actual mechanical dimensions, then verify again with the real unpowered board before release.
What if the enclosure problem involves the whole component volume?
Add measured three-dimensional stand-ins. A flat silhouette cannot reveal all height conflicts. For a larger decorative or spatial model, spaced cardboard ribs illustrate a different way to represent volume, although they likewise provide no electrical, structural or thermal validation.