Parametric Speaker Terminal Cup Generator

Press the Customize button to customize!

Parametric Speaker Terminal Cup Generator

Need a terminal cup that actually fits your build? This fully parametric generator lets you dial in every dimension for a perfect fit, whether you're building a custom speaker cabinet, replacing a damaged cup, or designing something non-standard.

Key Features

• Round or Rectangle body: Switch between circular and rectangular profiles to match your cabinet cutout.
• Fully Parametric Dimensions: Set cup width, height, depth, wall thickness, and flange size independently. Cup depth goes all the way to 0 for a flush terminal plate.
• Blank Panel Option: Set terminal columns and rows to 0 to print a solid blank panel, useful for covering unused cutouts or as a base for custom labels.
• Flange with Countersunk Screw Holes: 1–8 mount holes with fully configurable shank diameter, countersink diameter, and countersink angle (82° US or 90° metric). Corner holes are automatically positioned along the 45° diagonal of the flange corner radius so there's always sufficient material around each hole.
• Custom or Auto Hole Spacing: Auto-centers mount holes in the flange border, or enter a fixed center-to-center spacing to match an existing pattern.
• TPU Gasket View: Switch to the gasket view to print a matching TPU sealing ring with a selectable inner clearance gap for easy installation.
• Prints Face-Up: Oriented with the back panel on the bed and the cup opening facing up. The flange overhangs the cup walls at the top; use grid or snug supports there.

Parameters

How to Use

1. Pick your shape: Set body_shape to round or rectangle.
2. Set your dimensions: Match cup_width, cup_height, and cup_depth to your cabinet cutout. Set cup_depth to 0 for a flush panel.
3. Configure terminals: Set terminal_columns and terminal_rows to match your terminal hardware spacing. Set both to 0 for a blank panel.
4. Mount holes: Adjust mount_count and countersink parameters for your screws. Enable use_custom_spacing if you need to match a specific hole pattern.
5. Print the gasket: Switch view to gasket, load your TPU filament, and print the sealing ring. Adjust gasket_inner_gap if it's a tight fit.
6. Export the STL, download the optimized print profile from this page, delete the sample models off the plate, and import your STL into it.

Printing Tips

• Cup: Print with the default face-up orientation. The flat back panel on the bed gives a clean terminal-side surface. Use grid or snug supports under the flange overhang at the top. 4 walls recommended for strength.
• Gasket: Print flat in TPU (95A works well). No supports needed. 2–3 walls, 20% infill.
• Material: PETG or ABS recommended for the cup; better heat and humidity resistance inside a cabinet than PLA.

Designed in OpenSCAD. All source parameters are visible and editable in the Customizer.