CQ-Enclosure

A parametric IP66-rated enclosure generator for 3D printing, built with CadQuery. This package allows you to easily create customized enclosures with gaskets and various screw mounting options.

All components (box, lid, and gasket) can be exported as STEP files for compatibility with any CAD software and 3D printing workflow.

Features

• Fully parametric enclosure generation
• IP66-rated design with gasket
• Multiple screw mounting options:
  • Inside or outside box mounting
  • Wood screw or machine screw support with countersunk head
  • Configurable corner and middle screw positions
• Mounting holders for attaching the enclosure
• Automatic generation of:
  • Main enclosure box
  • Matching lid
  • Gasket for water-tight seal

Installation

Requires python 3.10 or higher.

pip install cq-enclosure

Usage

See the examples directory for complete usage examples.

Examples

box, lid, gasket = Enclosure(
    box_inner_width=31.0,
    box_inner_length=71.0,
    box_inner_height=31.0,
    screw_location=ScrewLocation.INSIDE_BOX,
    middle_length_screws=True,
).build()

---

box, lid, gasket = Enclosure(
    box_inner_width=31.0,
    box_inner_length=71.0,
    box_inner_height=31.0,
    screw_location=ScrewLocation.INSIDE_BOX,
    middle_length_screws=True,
    screw_type=ScrewType.WITH_SQUARE_NUT,
).build()

---

box, lid, gasket = Enclosure(
    box_inner_width=31.0,
    box_inner_length=71.0,
    box_inner_height=31.0,
    screw_location=ScrewLocation.OUTSIDE_BOX,
    middle_width_screws=True,
    corner_screws=False,
    screw_type=ScrewType.WITH_SQUARE_NUT,
).build()

---

box, lid, gasket = Enclosure(
    box_inner_width=31.0,
    box_inner_length=71.0,
    box_inner_height=31.0,
    screw_location=ScrewLocation.OUTSIDE_BOX,
    middle_length_screws=True,
    corner_screws=False,
    screw_type=ScrewType.WITH_SQUARE_NUT,
).build()

---

box, lid, gasket = Enclosure(
    box_inner_width=50.0,
    box_inner_length=50.0,
    box_inner_height=40.0,
    screw_location=ScrewLocation.OUTSIDE_BOX,
    corner_screws=False,
    middle_width_screws=True,
    middle_length_screws=True,
    screw_type=ScrewType.WOOD_SCREW,
).build()

---

box, lid, gasket = Enclosure(
    box_inner_width=50.0,
    box_inner_length=50.0,
    box_inner_height=40.0,
    screw_location=ScrewLocation.OUTSIDE_BOX,
    corner_screws=False,
    middle_width_screws=True,
    middle_length_screws=True,
    screw_type=ScrewType.WOOD_SCREW,
    mount_holders=False,
).build()

Parameters

The Enclosure class accepts the following parameters:

Core Dimensions

• box_inner_width: Internal width (X) of the enclosure
• box_inner_length: Internal length (Y) of the enclosure
• box_inner_height: Internal height (Z) of the enclosure
• actual_inner_width: Whether to include screw cylinder dimensions in box_inner_width when using inside box screws (default: True)
• actual_inner_length: Whether to include screw cylinder dimensions in box_inner_length when using inside box screws (default: True)

Split to box and lid

• cut_top: Height at which the box splits into lid and base (default: 5.0mm)

Screw Configuration

• screw_location: Location of mounting screws (ScrewLocation.INSIDE_BOX or ScrewLocation.OUTSIDE_BOX, default: OUTSIDE_BOX)
• screw_type: Type of screws to use (ScrewType.WOOD_SCREW or ScrewType.WITH_SQUARE_NUT, default: WOOD_SCREW)
• screw_hole_diameter: Diameter of the screw holes (default: 3.3mm including tolerance)
• screw_head_diameter: Diameter of the screw head (default: 6.0mm)
• screw_total_length: Total length of the screws (default: 16.0mm)
• corner_screws: Enable/disable corner mounting points (default: True)
• middle_length_screws: Enable/disable middle mounting points on length sides (default: False)
• middle_width_screws: Enable/disable middle mounting points on width sides (default: False)

Square Nut Parameters

• square_nut_width: Width of square nuts (default: 5.5mm)
• square_nut_height: Height of square nuts (default: 1.8mm)
• nut_wa_type: Nut printing workaround type (NutPrintingWA.CUT_RECT_SPACES or NutPrintingWA.ADD_CEILING, default: ADD_CEILING)

Gasket Parameters

• gasket_height: Height of the gasket (default: 1.6mm)
• gasket_width: Width of the gasket (default: 1.2mm)
• gasket_spacing: Spacing around the gasket (default: 0.15mm)
• gasket_compression: Compression factor for the gasket (default: 0.2mm)

Mount Holders

• mount_holders: Enable/disable mounting holders (default: True)
• mount_holder_length: Length of mounting holders (default: 15.0mm)
• mount_holders_screw_hole_diameter: Diameter of mount holder screw holes (default: 5.0mm)
• mount_holders_head_screw_diameter: Diameter of mount holder screw heads (default: 9.0mm)
• mount_holders_fillet: Enable/disable fillets on mount holders (default: True)

3D Printing Parameters

• layer_height: Layer height for 3D printing, used for square nut printing trick (default: 0.28mm)

Aesthetic Options

• fillet_bottom: Enable/disable bottom fillets (default: True)
• fillet_top: Enable/disable top fillets (default: True)

Development

To set up a development environment:

1. Clone the repository
2. Install astral uv package manager.
3. Create and initialize a virtual environment:

    uv sync