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

  • Very much informative!!!!

    read more
  • If you are using raspberry pi as one of your main computers and have separate monitor, keyboard and mouse, then you might be tired of copy and pasting terminal commands and codes while doing projects with raspberry pi, because running chromium-browser and reading tutorial will pi slower and using a sperate keyboard and mouse use our workbench space too.

    recently I read a blog Share your keyboard and mouse between computers with Barrier by Gordon Hollingworth which is cool.

    In that blog, he mentioned a software called barrier, it's a software that will allow you to use a single keyboard and mouse to control multiple computers by physically turning a dial on the box to switch the machine you're controlling at any given moment. The barrier does this in software, allowing you to tell it which machine to control by moving your mouse to the edge of the screen, or by using a keypress to switch focus to a different system.

    Follow these to share your computer keyboard and mouse with the raspberry pi

    First, we need setup raspberry pi

    Step 1: Download and Install Raspberry Pi OS on SD Card

    Step 2: Connect raspberry pi to the wi-fi network

    Step 3: Install barrier, for that open your terminal (Ctrl + T) and paste or enter the following

    sudo apt install barrier

    Then click enter.

    Step 4: Setup barrier, Open barrier by typing barrier on the terminal, if you successfully installed the barrier you can see like this.

    2020-07-02_19-54.png

    Select option Client (Use another computer's mouse and keyboard) and Select Auto config option too, also note the Screen name, which we need for the server.

    That's all next we need to set up the desktop/laptop computer.

    Step 5: Download and Install barrier on desktop or laptop computer (The Server), download link

    Step 6: Set up the barrier by selecting Server and position your monitor on barrier software. 004.png

    To Position, the screen clicks the configure server.

    005.png

    Here, to drag and drop the monitor icon to the desired position you need on the grid.

    007.png

    double click the screen and set the screen name, you can obtain the screen name from the raspberry pi barrier client. (See Step 4)

    008.png

    after setup, it should be like this. Then click OK

    2020-07-02_13-05.png

    in the following screen, click Apply and Just wait few seconds then try to move the mouse to the corner. Yes, It should work.

    read more
  • @rafitc99 Looks cool, Thanks for sharing. 👍

    read more
  • This is a speaker call for MakerChat by MakerGram. MakerChat is a webinar series where makers from different domain sharing their expertise with other fellow makers. MakerGram is an Open Community Platform for Makers and hardware enthusiasts to empower them by promoting learning, sharing and collaboration.

    Link: https://forms.gle/R5qhEhQeEe7UnJey9

    photo_2020-06-28_09-45-12.jpg

    Link: https://forms.gle/R5qhEhQeEe7UnJey9

    read more
  • The Challenge

    Do you think you can come up with some interesting ideas revolving around Amazon Alexa? What if we could help you build that idea into a reality. Tell us about your idea and the best one wins an Amazon Alexa Echo Dot.

    🧲 Bonus points for those solutions involving Covid-19 or promoting social-distancing.

    Schedule🗓

    Application - The application starts on 26th June 2020. Closing - The registration will end on 17th July 2020. Results - The results declared by last week of July

    For Registration: https://alexa.hackclub.com/

    AlexaChallenge

    read more