Hack Chat 0x02: Introduction to 3D Printing



  • Steag Center for Smart Technologies is organizing second HackChat exclusively for the Rajagiri students.

    This week we are going to learn about 3D Printing Technologies.

    Venue: Steag Center, KE Block Extension. Rajagiri Engineering college.

    Date: Feb-13-2020
    Time: 5:00 PM to 5:30 PM

    Register here: bit.ly/hackchat2

    No Registration Fee

    HackChat 0x02.jpg



  • 3D PRINTING

    3D Printing is an additive manufacturing process that creates a physical object from a digital design. There are different 3D printing technologies and materials you can print with, but all are based on the same principle: a digital model is turned into a solid three-dimensional physical object by adding material layer by layer. In an additive process, an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a thinly sliced horizontal cross-section of the eventual object.(Source:- https://www.3dhubs.com)

    alt text



  • There is a different way to print a 3D object.

    Stereolithography(SLA)

    This process that converts liquid plastic into solid objects.

    alt text

    These 3D printing technologies are also available in desktop 3D printers. Materials are limited to resins, but new varieties have appeared recently providing strength or flexibility to the final objects.SLA and DLP 3D printers produce highly accurate parts with smooth surface finishes and are commonly used for highly detailed sculptures, jewellery moulds, and prototypes. Because of their relatively small size, they are not recommended for printing large objects.(Source:- https://www.3dhubs.com)

    Material Jetting (PolyJet and MultiJet Modeling)

    Material Jetting (Stratasys PolyJet and 3D Systems MultiJet Modeling) technologies are similar to inkjet printing, but instead of jetting drops of ink onto paper, these 3D printers jet layers of liquid photopolymer onto a build tray and cure them instantly using UV light.

    alt text

    Selective Laser Sintering (SLS)

    Selective Laser Sintering (SLS) uses a laser to melt and solidify layers of powdered material into finished objects.

    alt text

    Fused-deposition moulding (FDM)

    The FDM printing process starts with a string of solid material called the filament. This line of filament is guided from a reel attached to the 3D printer to a heated nozzle inside of the 3D printer that melts the material. Once in a melted state, the material can be extruded on a specific and predetermined path created by the software on the computer. As the material is extruded as a layer of the object on this path, it instantly cools down and solidifies – providing the foundation for the next layer of material until the entire object is manufactured.

    alt text

    As the cheapest 3D printing technology on the market, FDM also offers a wide variety of plastic-based materials in a rainbow of colors including ABS, PLA, nylon and even more exotic material blends including carbon, bronze or wood.(Source :- https://www.3dhubs.com)



  • PRINTING MATERIAL

    The material used will affect the mechanical properties and accuracy of the printed part, but also its price. The most common FDM materials are summarized in the table below. (Source:- https://www.3dhubs.com/knowledge-base/introduction-fdm-3d-printing

    alt text



  • FlashForge Pro
    alt text

    FlashForge 3D Printer Creator Pro, Metal Frame Structure, Acrylic Covers, Optimized Build Platform, Dual Extruder W/2 Spools, Works with ABS and PLA.

    alt text

    alt text

    alt text

    Source: https://www.flashforge.com/consumer/detail/Creator Pro?id=4


Log in to reply
 

Recent Posts

  • @Ggreeshma-stani Nailed the PCB in terms of the schematic. But you got it a little bad on the layout side. There are some thumb rules while designing a layout of PCB.

    Always place the oscillator and it's capacitors(C1, C2) near to the IC. If you have a doubt on this try checking the Arduino boards or any other boards. you will find an SMD chip crystal alongside of the Arduino XTAL pins. If you ask the reason for this that's simple, to avoid noise creeping in. Crystals provide the clock to the entire digital logic inside the IC. So, there should not be any noise in it. If noise is there, obviously you'll have timing issues.

    The bypass caps on the voltage regulator must be placed close to the regulator's input and output pins. The reason for this is also pretty simple, bypass caps will filter out noise coming from the power supply and few other reasons too. So, try placing these bypass caps as close as possible to IC.

    Apart from these points, the PCB looked good. Great work. Remember that this message is not to discourage you but just to give a suggestion so that you'll improve it in the next design.

    read more
  • Calling All Innovators - IgniteX Accelerator

    6BhFEbJr_400x400.jpg

    Do you have a solution that can reduce the severity of the coronavirus outbreak, but need help commercializing and rapidly deploying? The Black & Veatch COVID-19 Response Accelerator is designed for growing companies looking to scale emerging solutions to save lives, help communities cope, and protect the economy.

    Apply here https://www.bvignite.com/

    read more
  • M

    @salmanfaris the pressure range that we have to measure is between 5-10 cmH20 (ie almost 0.07 - 0.0.14 psi)

    read more
  • G

    final redone project eagle.png final project redone.png final project redone back view.png final project eagle.png

    read more
  • Startup India - Challange

    startup-india

    The Challenge is open to all the Startups, Companies, Innovators etc. whose innovation can plug the gap between the demand and supply of essential medical items to fight the Covid-19 outbreak as well as an innovative tech for applications such as motion tracking, geofencing, fake news detection, etc.

    Powered by Startup India

    Apply before Wednesday, 15th April

    Submit Solutions to combat Covid19 here -https://www.startupindia.gov.in/content/sih/en/ams-application/challenge.html?applicationId=5e79126ee4b055bfaea9ef66

    read more