A fully parametric circular mounting plate generator designed in OpenSCAD for creating precise, customizable bases or covers for electronics, sensors, or 3D-printed assemblies.

This model uses a center-origin coordinate system, allowing easy hole placement via signed X/Y coordinates.

It supports both CSV-style hole input strings and up to 25 per-hole text slots, letting you quickly define through-holes, blind holes, and countersinks with exact depth and location control.

Optional X and Y “back channels” carve straight cylindrical wire troughs through the disk.

A 3D edge fillet keeps the plate edges smooth while preserving the exact outer diameter and thickness.

Key Features

• Exact diameter × thickness envelope even with fillets applied
• Flexible hole input: CSV string or up to 25 individual slots
• Through, blind, and countersunk holes (visual 45° frustum)
• Independent X & Y back channels with depth, face, and margin control
• Smooth outer edge radius (Minkowski-based)
• Signed coordinates for symmetric placement around (0, 0)

NOTE: for larger diameters use larger fn values for smoother edges. I'll now go up to 366 when making mounting plates for unification APs.