Additive manufacturing (more commonly known as 3D printing) is the process of building up a part of something one layer at a time. There are a range of 3D printing technologies with each having their own benefits and limitations with the ability to print parts from different materials.
Classification of 3D printing technologies:
- Material Extrusion
- Vat Polymerization
- Powder Bed Fusion
- Material Jetting
- Binder Jetting
- Direct Energy Deposition
- Sheet Lamination
Definition Accessed from: The 3d Printing Handbook: Technologies, Design and Applications. 3D Hubs B.V, 2018, by Redwood, Schoffer, Garret.
Our 3D Printers
This is a printer that can be used for 3D printing, laser engraving and CNC carving. Focusing on 3D printing, the Snapmaker is a Fused Filament Fabrication (FFF) technology that follows the material extrusion process, an additive manufacturing process in which material is selectively dispensed through a nozzle or orifice. It has a build volume of 125mm x 125mm x 125mm and a layer resolution of 50~300 microns.
The LCD Photon printer uses resins to follow the Material Jetting (MJ) process, which is an additive manufacturing process in which droplets of material are selectively deposited and cured on a build plate. It has a build volume of 115mm x 65mm x 155mm and an XY resolution of 47 microns (2560*1440). We also have a UV Curing station for curing the Photon 3D Printed models and an Ultrasonic Cleaner for Resin Prints for high volume printing.
The Polysher uses Polymaker's layer-Free technology. Layer-Free technology involves exposing a 3D printed part to an aerosol of micro-sized alcohol droplets, generated by a rapidly vibrating, perforated membrane called the nebulizer. The aerosol will then be adsorbed by the surface of the 3D printed part and render it smooth and layer-free. It has a volume of 150mm x 180mm (diameter * height).
A drone is an aircraft that does not have a pilot but is controlled by someone on the ground. There are many different types of drones used for varying purposes, such as military, monitoring storms and hurricanes, or commercial use. (Information taken from the Cambridge Dictionary)
We have four Tello EDU models in the lab. Tello is an impressive and programmable drone perfect for education. It can be very easily programmed with languages such as Scratch, Python, and Swift. Multiple Tellos can also be used to create a swarm, allowing one to control all of them through only one device. Mission Pads provided can be used for the programming flight patterns, and the Tellos can also be programmed to do flips and other aerobatic movements. It has an SDK 2.0 and a flight time of 13 minutes while allowing a 720P HD transmission through a camera with a resolution of 5MP.
DJI Mavic 2
The Mavic 2 is a drone offering great image quality with its Hasselblad L1D-20c camera. The Mavic allows up to 8 km 1080p Video Transmission for up to 31 minutes of flight time with 72 kph max speed in Sport mode. It also has an 20MP 1" Sensor and omnidirectional obstacle sensing.
The Raspberry Pi is a low cost, credit-card sized computer that plugs into a computer monitor or TV and uses a standard keyboard and mouse. It is a capable little device that enables people of all ages to explore computing, and to learn how to program in languages like Scratch and Python. It’s capable of doing everything you’d expect a desktop computer to do, from browsing the internet and playing high-definition video, to making spreadsheets, word-processing, and playing games.
Definition accessed from the RaspberryPi website.
Our Raspberry Pi's
Raspberry Pi 3 Model B+
This is the latest revision of a Raspberry Pi third-generation single-board computer. It has a 1.4GHz 64-bit quad-core processor, dual-band wireless LAN, Bluetooth 4.2/BLE, faster Ethernet, and Power-over-Ethernet support (with separate PoE HAT).
Raspberry Pi 3 Model B
Model B of Raspberry Pi 3 is a single-board computer with wireless LAN and Bluetooth connectivity. It has a 1.2GHz 64-bit quad-core CPU, 1GB RAM, wireless LAN and Bluetooth Low Energy (BLE) on board, 4 USB 2 ports, full-size HDMI, and many other features.
Raspberry Pi 1 Model B+
Model B+ of the first generation of Raspberry Pi is a single-board computer, with 4 USB 2.0 ports, a micro SD card socket, 100 Base Ethernet, and low-noise audio power supply
4 node cluster (1 GB Ethernet) for experimenting with networked remote clusters
Raspberry Pi 4
Virtual Reality is "an artificial environment which is experienced through sensory stimuli (such as sights and sounds) provided by a computer and in which one's actions partially determine what happens in the environment"
It is also defined as "the technology used to create or access a virtual reality".
Definition accessed from Meriam Webster.
The Oculus Rift is a tethered virtual reality headset by Oculus. Very easy to use but not very portable. The headset comes with two touch controllers and uses sensors to better track movement in space, which it then translates into VR with realistic precision. This headset requires a computer to work and does not allow great movement in space due to the wire. The Oculus Rift has a resolution of 2160 x 1200 pixels, a refresh rate of 90 Hz, and a field of view of 110 degrees.
We have 3 Oculus Go headsets in the lab. Oculus Go is a wireless headset that comes with one controller. The headset can be used anywhere and can be easily managed through the Oculus app; it does not require the use of a PC. The Oculus Go has a resolution of 2560×1440 with a refresh rate between 60 and 72 Hz.
HTC Vive Pro
The HTC Vive Pro is a tethered virtual reality headset that allows movement in an up to 22'11" x 22'11" room-scale stage. It is a fully immersive headset with 360-degree controller and headset tracking, realistic graphics, and directional audio. This head set also allows free movement around the space with the Vive Wireless Adapter. It has a resolution of 2880 x 1600 pixels, a refresh rate of 90 Hz, and a field view of 110 degrees.
Windows Mixed Reality
The Microsoft Samsung Mixed Reality Headsets are tethered virtual reality headsets with two motion controllers. It does not require the use of external sensors, making it a quite portable headset. This headset has a resolution of 2880 x 1600 pixels, a refresh rate that goes up to 90 Hz, and a field of view up to 110 degrees.
This is the least expensive way to experience VR. Through applications on your phone, Google Cardboard allows users to have a more passive VR experience. We also have our own foldable VR viewers branded with the school's logo. Such VR viewers could be used for public VR movie screenings.
The Merge Cube is a very simple and cheap AR/VR tool used for both entertainment and educational purposes. By downloading the Merge Cube App on their device, users are able to experience an immersive form of learning or playing. Merge has developed multiple products that facilitated educators in their immersive teaching and users in their experiences. they have multiple platforms as well as an immersive headset allowing a complete VR experience.
An eGPU (External Graphic Processing Unit) is a graphics processor that resides outside of a computer. It is attached via a high-speed connection, such as Thunderbolt cable, which provides sufficient bandwidth to process graphics in real-time outside the computer.
Definition from TechTerms website.
- AMD Vega 64 eGPU
- NVIDIA 1080 Ti eGPU
Smart Home Devices
A smart home is a house or other dwelling with automated or remotely controlled components. Some "smart" components require a proprietary interface though most smart home features can be controlled by a mobile device or computer. While there are no technical requirements for a smart home, a basic smart home might have remote controlled lighting and an automated thermostat.
Definition from TechTerms website.
Our Smart Home Devices
- Original Alexa + Mini
- Google Home + Mini
- Apple Siri
- Microsoft Cortana
Cameras from the In The Know Lab are used to record videos that can be used in the creation of Virtual Reality environments. These cameras record in either 180 or 360 degrees, allowing the entire environment to be captured in the same shot.
This is the first camera for 3D VR180. It was developed with the thought of mimicking human vision capabilities, and in the same way that humans have two eyes to capture the peripheral vision, LucidCam has two cameras equipped with Lucid built in intelligence which allows LucidCam to sense depth and understand its surroundings better over time
Samsung's Gear 360 camera is a very easy to use 360 camera controlled by a mobile device, making it easy to shoot and share videos and photos. It has a battery life up to 130 minutes and an expandable memory of up to 256 GB. It is compatible with both mobile devices and PCs allowing you to edit and share the content.