Parametric Speaker GUMBO

Summary

12/21/25: Made lots of minor changes to help with consistency in the files. Improved the fit test file for all shapes. This will allow you to fine tune the driver baffle parameters for each driver individually without having to print an entire baffle. Note that the files are for a 1-way configuration and do not match the default pictures anymore.

12/14/25: Corrected issue with drivers not being ordered from top to bottom correctly for 2-way configurations.

12/13/25: Speaker cutout shapes have been corrected. Surface mounting has been enabled, there is a new shape 7 that is adjustable, and a shape 7 test file.

12/8/25: There are a few issues with the baffle not making the speaker cutouts correctly (square, rectangle, cuts). I'm also adding FaitalPro style clipped circle cutouts. I'll try to have the corrections as soon as possible.

OVERVIEW:

This is a Great Utility for Music Box Optimization (GUMBO)! It is a fully parametric desktop speaker enclosure system built with OpenSCAD. You will need to download OpenSCAD to use this. It's a lot easier/faster than using the customizer. GUMBO is designed for makers who want precision, flexibility, and professional-grade features without needing expensive CAD tools. It is highly recommended to use WinISD to model speaker enclosures and for port tuning. GUMBO does not support slotted ports.

The project includes:
-- Parametric Speaker Enclosure Generator
-- Advanced Glue-On Baffle Generator (CORE + FRAME Architecture)
-- Tab Slot Generator (for locating the baffle on the box)

-- Shape 7 Driver Fit Test (For dialing in the speaker shape before printing the baffle)

These files enable you to generate customized speaker boxes and matching baffles for a wide range of full-range drivers, tweeters, and midranges in 1-, 2-, and 3-way configurations.

FEATURES:
Speaker Enclosure Generator
TS-parameter-based sizing
Sealed or round ported box modes (port(s) on back panel)
Port flares
Adjustable height/width/depth ratios
Automatic internal volume calculation
Per-driver cutouts and screw patterns
Optional rear panel with tongue or rabbet joint
Countersunk screw support
Terminal cup integration
Clean, structured parametric code

Baffle Generator (Core + Frame System)
CORE contains:
driver cutouts
driver recess pockets
screw holes
optional flush-trim rings
FRAME contains:
Selectable edge treatments
slot + key locating pockets
optimized chamfer/roundover geometry

Edge Styling Options
-- Flat
-- Chamfered (3/4/5/6/8 mm)
-- Front-only Roundover (3/4/5/6/8 mm)
-- Auto-thickening enabled when needed
Flush Trim Rings (1.0–2.0 mm depth)
-- Polished, machined look
-- Adjustable trim margin (e.g., 0.4 mm)
-- Supports round and rectangular drivers
Locating Pockets
-- Slot (top-left) & key (bottom-right). Looking at back of baffle
-- Ensures perfect alignment when gluing the baffle to the box

HOW TO USE

1. Open the Speaker Enclosure Generator
   Enter TS parameters
   Set width/height/depth ratios
   Define drivers, cutouts, & offsets (Use debug options to see driver faces)
   Choose sealed or vented
   Render box parts to confirm size & configuration (be sure to turn off debug options before rendering)

2. Open the Baffle Generator V2.3
   Copy the same TS and ratio parameters
   Choose edge style: flat, chamfer, roundover
   Set baffle thickness
   Set flush trim depth (1.0–2.0 mm)
   Set trim margin (0–2 mm)
   Render final baffle

3. Export STL Files
   Export enclosure body
   Export baffle
   Export key and slot

Print with your preferred filament & colors

1. Assembly
   Use the slot & key to align the baffle
   Securely glue the baffle to the box. (Use SCIGRIP 16, super glue, epoxy, or any glue that will permanently hold and seal plastics)
   Install terminals
   Install a crossover (buy or build one)
   Wire drivers
   Enjoy your creation!

All code written with assistance from ChatGPT, (Spock Module)!