Mostrando entradas con la etiqueta Selective Laser Sintering. Mostrar todas las entradas
Mostrando entradas con la etiqueta Selective Laser Sintering. Mostrar todas las entradas

lunes, 11 de junio de 2018

Additive Manufacturing of Wind Sensors for UAVs


According to Fred Squire, Director of Sales and Marketing at FT Technologies, “The FT205 is the first in a new generation of lightweight ultrasonic wind sensors. The light weight of the FT205 together with the proven FT ACU-RES technology make it ideal for use on aerial UAVs and other applications where weight is critical.”


FT Technologies, a British company specializing in the development and production of ultrasonic wind sensors, has reportedly launched its first UAV-specific and 3D printed deviceFT TechnologiesFT205 is designed to aid UAV users in environmental projects and to execute more reliable flights.


Selective Laser Sintering (SLS) technology has been used to make the device, achieving a weight of just 100g. According to reports, the material used is a graphite and nylon composite. The device works in extreme environments, at a maximum altitude of 4.000 m and in temperatures between -20 and +70°C.


The FT205 sensor has been 3D printed by fellow British company Graphite Additive Manufacturing (Graphite AM) a specialist service bureau and consultancy firm. The FT205 uses acoustic resonance technology to deliver environmental information about the wind speed, direction and temperature, bases on minute vibrations in the device, and an in-built compass. A versatile piece of equipment, it can be plugged into an UAV’s input/output communications, mounted on a flat surface, or attached to a pole.

Design for Additive Manufacturing


Design For Manufacturing (DFM) has typically meant that designers should tailor their designs to eliminate manufacturing difficulties and minimize manufacturing, assembly, and logistics costs.

However, the capabilities of Additive Manufacturing (AM) technologies provide an opportunity to rethink DFM to take advantage of the unique capabilities of these technologies:

1) Shape complexity: It is possible to build virtually any shape.

2) Hierarchical complexity: Hierarchical multiscale structures can be designed and fabricated from the microstructure through geometric mesostructure (sizes in the millimeter range) to the part-scale macrostructure

3) Material complexity: Material can be processed one point, or one layer, at a time.

4) Functional complexity: Fully functional assemblies and mechanisms can be fabricated directly using AM processes.

These unique capabilities enable new opportunities for customization, very significant improvements in product performance, multifunctionality, and lower overall manufacturing costs.

In the case of UAVs, AM technology enables low-volume manufacturing, easy integration of design changes and, at least as importantly, piece part reductions to greatly simplify product assembly.

jueves, 1 de marzo de 2018

Application of 3D printing technology in aerodynamic study


3D printing, as an additive process, offers much more than traditional machining techniques in terms of achievable complexity of a model shape.

That fact was a motivation to adapt discussed technology as a method for creating objects purposed for aerodynamic testing.

The following paper provides an overview of various 3D printing techniques. Four models of a standard NACA 0018 aerofoil were manufactured in different materials and methods: MultiJet Modelling (MJM), Selective Laser Sintering (SLS) and Fused Deposition Modeling (FDM).

Various parameters of the models have been included in the analysis: surface roughness, strength, details quality, surface imperfections and irregularities as well as thermal properties.

Read more:

miércoles, 8 de noviembre de 2017

General Atomics looks for an Additive Manufacturing Machine Technician



Duties & Responsibilities
Follow established procedures, assembly documentation, work instructions, methods and sequence of operation related to the creation of production parts and tooling using Additive Manufacturing (AM) (3D Printing), FDM and SLS techniques.

Essential Functions
Setup, operate and perform daily maintenance on AM machines.

Desirable Qualifications
Background in FDM (Fused Deposition Modeling) and/or Selective Laser Sintering (SLS) AM technologies.

More info: