Universal Crossover Perfboard, Multiple Sizes

A universal, 3D printable perfboard-style mounting plate designed specifically for passive speaker crossovers. These boards make it easy to lay out inductors, capacitors, resistors, and wiring neatly, then mount the finished crossover securely inside a cabinet.

Designed for PETG printing and real-world crossover builds, with a sturdy 3mm base, consistent hole grid, and larger corner mounting holes.  This is a universal board, not tied to any specific crossover schematic. You can use it for 2-way, 3-way, or more complex networks, prototypes, or final builds.

Features

• Round through-holes on a consistent grid (perfboard-style layout)

• Larger corner mounting holes for screws

• Uniform, centered hole layout for clean, repeatable builds

• Corner mounting holes are placed 5mm from each edge

• Grid avoids holes that would interfere with corner mounting holes

• 3.0mm thick solid base for stiffness and durability

• Grid holes: 2.5mm diameter

• Corner mounting holes: 3.5mm diameter

• Hole pitch: 4.0mm (center-to-center)

Included Sizes (STL files)

• 45mm x 60mm x 3mm

• 67.5mm x 90mm x 3mm

• 90mm x 120mm x 3mm

• 112.5mm x 150mm x 3mm

• 5" x 7" (127mm x 177.8mm) x 3mm

Recommended Print Settings

• Material: PETG (PLA works too, but PETG or ASA is tougher and more heat resistant)

• Layer height: 0.20mm 

• Walls: 4+ perimeters recommended for stiffness

• Infill: 15–30% (Gyroid or Grid)

• Top/Bottom: 4–6 layers

• Supports: None

• Orientation: Print flat on the bed