Multi-Printer Wooden Truss Manufacturing With Stack-Visible Identification
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Solution Overview
Problem
Existing methods for manufacturing wooden roof trusses, floor trusses, and wall panels require significant manual labor, visual inspection, and manual handling, leading to inefficiencies and increased costs, while the identification of trusses and panels during transportation and installation is challenging due to hidden labels.
Innovation Solution
An automated system using a control computer to manage the production of wooden components, including infeed chutes, conveyors, scanners, and printers, which automatically sorts, cuts, and labels trusses and panels, eliminating manual handling and ensuring easy identification even when stacked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated systems are used to manufacture wooden trusses, then productivity and manufacturing precision are improved, but device complexity increases
Solution Approach 1:
The manufacturing system is divided into multiple independent 3D printers that can operate simultaneously to produce different truss components. Each printer handles specific tasks (e.g., printing chords, webs, or nodes) independently, allowing parallel production without requiring a single complex automated assembly line. This segmentation maintains high productivity while reducing individual device complexity.
Solution Approach 2:
The 3D printers are designed with multi-functionality to print various truss components (chords, webs, diagonal members, and nodes) using different materials (wooden filaments, resins, or powders). This universal capability eliminates the need for multiple specialized machines, improving productivity while managing system complexity through versatile equipment.
2Manufacturing precision
If multiple 3D printers are used to manufacture wooden trusses, then manufacturing precision and adaptability are improved, but device complexity increases
Solution Approach 1:
Complex truss structures are segmented into smaller components that can be printed individually by separate 3D printers with high precision. Each printer focuses on specific components, achieving manufacturing precision for each part while avoiding the complexity of printing entire assembled trusses in one piece. The segmented components are then joined using traditional or automated connection methods.
Solution Approach 2:
The system utilizes different printing parameters (temperature, layer height, infill density, material composition) across multiple printers to optimize manufacturing precision for different truss components. By adjusting these parameters according to component-specific requirements, the system achieves high precision without requiring a single overly complex printer design.
3Device complexity
If traditional manufacturing methods are used, then device complexity is reduced, but loss of time increases
Solution Approach 1:
Truss components are pre-printed using 3D printers before final assembly, allowing parallel production of multiple components simultaneously. This preliminary manufacturing of individual components (chords, webs, nodes) significantly reduces total production time compared to traditional sequential craftsmanship, while maintaining relatively simple device complexity through the use of additive manufacturing technology.
Solution Approach 2:
The 3D printing process enables continuous manufacturing of truss components without the interruptions inherent in traditional batch production methods. Multiple printers can operate continuously and simultaneously, eliminating idle time between manufacturing steps and reducing overall production time while keeping the system architecture relatively simple.
Data Source
AI summary
A wooden truss includes an elongated lower chord, first and second upper chords, and web members extending therebetween. Alternatively, the wooden truss includes two elongated chords and web members extending therebetween. A member identifier is printed on a broad face of at least one of such chords to identify such chord before assembly of the wooden truss. An assembled truss identifier is printed on an outward-facing edge of such chord to identify an assembled wooden truss incorporating such chord, wherein the assembled truss identifier is visible to an observer viewing a stack of such wooden trusses. The assembled truss identifier is printed a predetermined distance from a first end of such chord wherein such assembled truss identifiers are in alignment when a series of such wooden trusses are stacked adjacent to each other.