Rotatable Vane Build Material Supply System

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Solution Overview

Problem

Existing 3D printing systems face challenges in efficiently managing powdered build materials, leading to excess material accumulation, airborne contamination, and uneven layer formation due to the lack of effective mechanisms for spreading and solidifying materials.

Innovation Solution

A compact build material supply system with a rotatable vane mechanism and controlled build material distribution, which forms a predetermined dose of material along the edge of the build platform, using a horizontally movable spreader and controlled vane angles to minimize excess material return and ensure even layer formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a traditional build material supply system is used without a vane mechanism, then the system structure is simpler, but excess build material accumulates and becomes airborne causing contamination

Engineering Contradiction:

Improveairborne contaminationVSAvoidsystem structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

A vane mechanism is introduced as an intermediary component between the build material store and the build platform. The vane selectively distributes powdered build material along the edge of the build platform, preventing excess material from becoming airborne while maintaining a relatively simple overall system structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If build material is freely distributed without a controlled mechanism, then the system is easier to operate, but uneven layer formation and excess material accumulation occur

Engineering Contradiction:

Improvelayer formation uniformityVSAvoidoperation simplicity

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The vane mechanism performs preliminary action by pre-distributing build material along the edge of the build platform before the layer formation process. This preliminary distribution ensures uniform material placement and prevents uneven layer formation while maintaining ease of operation through automated material delivery.

Inventive Principle:

Principle #10Preliminary action

3Loss of substance

If excess build material is not minimized, then more material is available for printing, but material waste increases and airborne contamination occurs

Engineering Contradiction:

Improvematerial wasteVSAvoidavailable material

Core Design Contradiction:

Loss of substanceVSQuantity of substance

Solution Approach 1:

The vane mechanism enables selective distribution of build material, allowing excess material to be discarded or recovered by directing it back to the build material store. This prevents material waste while ensuring only the required amount is used for layer formation, maintaining adequate material availability.

Inventive Principle:

Principle #34Discarding and recovering

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system effectively reduces airborne contamination, ensures consistent layer formation, and optimizes the use of build materials by minimizing excess material and maintaining a stable environment for printing.

Implementation Method 1

forms a predetermined dose of build material along an edge of the build platform

Methodology Applied

Scientific EffectGravity: Gravitation

Implementation Method 2

using a horizontally movable spreader and controlled vane angles to minimize excess material return

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS11485074B2Supplying build material

Publication Date: 2022.11.01 PERIDOT PRINT LLC

AI summary

According to one example there is provided an apparatus for supplying build material to a three-dimensional printing system. The apparatus comprises a rotatable vane.