lastcoolnameleft / intro-to-3d-printing

A presentation on Intro to 3D printing

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Introduction to 3D Printing

Presented by: Tommy Falgout

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Agenda

• What is 3D Printing?
• Realities of 3D Printing
• How does 3D Printing work?
• Real world scenarios
• My 3D Printer
• Demo Time!

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Me

• Long-time Maker
• Ex-VP + Board Member of TheLab.ms (Local Makerspace)
• Builder and organizer of trebuchet events (even on IMDB!)
• Bought 3D Printer during COVID

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What is 3D printing?

• Additive manufacturing
  • Adds one layer on top of another (like layers of a cake)
  • Different from subtractive manufacturing like a CNC mill which removes parts
• "A glue gun, attached to a robot" - Einstein, probably

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Types of 3D Printing

• What we're focuing on today
  • FDM - Fused Deposition Modeling
    • What most people think of regarding 3D Printing at home
    • Exemplifies the two A's of a new hobby:
      • Affordable & Accessible
• Cool stuff we're not focusing on
  • Stereolithography (SLA)
  • Digital Light Processing (DLP)
  • Selective Laser Sintering (SLS)
  • Selective Laser Melting (SLM)

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Hard Truths about 3D Printing

• It's not "Plug 'n' Play"
• It takes longer than you think
• Your prints will fail occasionally
• You can't 3D Print ALL THE THINGS

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Awesome Truths about 3D Printing

• You're only limited by your own brain and physics
• 3D printing is a gateway to other skills
• Create amazing things
• There's a large communities

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How to 3D Print

• Design - create a 3d model of the object
• Slice - turns design into instructions
• Print - tell the printer what to do

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Design - Download an object

• Thingiverse
• Printables
• Thangs

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Design - Make yourself

• Tinkercad
• OpenSCAD
• Fusion 360
• Blender

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Slice - Create printer instructions

• Types of instructions
  • Print head temperature
  • Print bed temperature
  • How fast to print
  • Where should the print head be at any moment
• Apps
  • PrusaSlicer
  • Cura

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Print

• Can print more than one model at a time
• Options
  • Load from SD card
  • Use Print Manager - WebApp
    • OctoPrint - Installs on RaspberryPi
    • Prusa MK4 is built-in

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Result

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My printer

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Why I chose a Prusa

• Quality product
  • Costs more, but worth it
• Can buy as a kit and assemble yourself
  • RECOMMENDED to assemble. It's fun, you learn a lot and if there's an issue, you know how to fix it
• GREAT instructions and community
• Many of my friends have them (bounce ideas/support)
• Most parts are 3D printed and Open Sourced!
  • Inspired by RepRap
• In some cases, you can skip the slicing step

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DEMO TIME!

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Demo

• Design - Tinkercad and/or OpenSCAD
• Slice - PrusaSlicer
• Print - OctoPrint

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Tip and Tricks

• Clean bed, happy print
  • Before print, wipe with 90%+ IPA (isopropyl alcohol)
• OctoPi - Manage your prints
• Spaghetti Detective - Monitor your prints

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Q & A

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Fin. Et merci.