This repository contains the CAD files and documentation for a modular, collapsible paint booth frame. The system is designed for high-speed production on CoreXY 3D printers (specifically calibrated for the Elegoo Centauri Carbon) and utilizes standard PVC piping for the structural skeleton.

🛠 Hardware Specifications

Main Structure: 1" Schedule 40 PVC (33.4mm OD)
Stabilizer Rail: 1/2" Schedule 40 PVC (21.3mm OD)
Base Mounts: 2x4 Lumber (Footers)
Connectors: 3D Printed Custom Hubs (4.0mm Wall Thickness)

📐 Structural Components

Front Hubs (x2): 3-Way 1" sockets for the booth entrance corners.
Hybrid Rear Hubs (x2): Transitions 1" vertical/side rails to a 1/2" rear cross-brace.
Floor Flanges (x4): Heavy-duty sockets with wide-bore screw holes for 2x4 footer attachment.

🚀 Printing & Calibration

The integrity of this booth relies on a high-tolerance friction fit. Before printing the main hubs, you must perform a tolerance check.

Tolerance Standard: * 1" Pipe: +0.15mm offset
- 1/2" Pipe: +0.20mm offset
Calibration Files: See the /calibration subfolder for ring-test arrays and notched identification guides.

Recommended Print Settings:

Walls: 4 Minimum (for structural leverage)
Infill: 25% Gyroid
Supports: Tree Supports (Touching Buildplate)
Orientation: Vertical ("Standing") to maximize socket strength.

📝 Assembly Instructions

Foundation: Screw the 4 Floor Flanges into your 2x4 lumber footers.
Verticals: Insert 1" PVC uprights into the flanges.
Skeleton: Connect the top 1" side rails using the Front and Rear Hubs.
Stabilize: Slide the 1/2" PVC rail into the hybrid ports on the Rear Hubs.
Enclosure: Wrap the frame in 4-mil or 6-mil plastic sheeting and secure with clips or tape.

⚠️ Maintenance & Safety

No Glue Required: The calibrated friction fit allows for tool-less knockdown and storage.
Airflow: If mounting an extraction fan, tether it directly to the 1/2" rear stabilizer rail for center-weight distribution.