Parametric 3D model of a mailbox flap, made with build123d.
OCP CAD Viewer for VS Code was used for code development.
This code is licensed under the GPL v3.
This mailbox flap, although parametric, is best suited to a standard French mailbox.
We strongly recommend that you print it in a weather-resistant material, perhaps ASA, PETG, etc.
When printing, orient the length of the flap along the Z axis, to avoid supports and, above all, the impossibility of managing clearance for the support bar.
Once printed, this mailbox flap can be installed as a replacement for the old flap, on an aluminum rod.