Introduction to Digital Fabrication
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Intro to digital fabrication. An overview of the different technologies you can use to make what is in your head. We introduce you to 3D printers, laser cutters and CNC mills. When they should be used as well as what files you need to produce. For more information contact us at www.misformaker.com.au M is for Maker.
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Introduction to Digital Fabrication
- 1. Digital Fabrication An Introduction to 3D Printing, Laser Cutting and CNC Milling
- 2. By the end • Digital Manufacture, what’s that? • What you can make, understand how • Where to start with designing • How to get it made
- 3. • Education • Invention • Tool Access
- 4. What is Digital Fabrication? • CAD > Fab • Machine is controlled digitally (computers)
- 5. Manual skills becomes computer skills • Manual: Manual Lathe • CNC: CNC Lathe • What does the difference mean?
- 6. What uses Digital Fabrication?
- 7. Revolution is afoot • Removes barrier • No stock • Customisable • Complexity is free
- 8. Tools Available toYou • Laser Cutter • 3D Printing • CNC Machining
- 10. Raster Engrave +Vector Cut
- 11. How it fits in • Paper, plastic, wood, metal • Limits (2D, thickness, materials) • Cards, cogs, jewelry, rapid mock • Great for: 2D, engraving, snap together, precise cuts, ~ zero tool diameter, kerf manipulation
- 12. Think about… • Material burns • Material warping • Kerf
- 13. 3D Printing
- 14. How it works
- 15. Types • Extrusion (plastics, concrete) • Powder(high detail plastics, sandstone) • Liquid (plastic) • Sinter (Al,Ti)
- 16. When to use 3D printing? • Internal geometry • Multiple parts • Prototyping
- 17. Think about… • Overhangs + supports • Bed lift • Material selection • Infill
- 18. CNC Milling • Like 3D printing but ‘Subtractive’
- 19. Details on CNC • 2.5D to 5D • Bits, routing, drill, tap • Plastic, wood, metal, glass
- 20. When to use it • Harder materials • 3D, highly accurate • Dies
- 21. Think about… • Tool thickness (internal corners) • Number of part rotations
- 22. Preparing your designs • Half design, half for machine
- 23. Laser Cutting - Rules • Recognise Cut vs Raster – Vector + Red + hairline = cut – Image or thicker + not red = raster • Files – SVG, AI, EPS, DXF (vector capable) – Not JPEG, PNG etc (unless only raster)
- 24. Laser Cutting – Software Recommendations • Adobe Illustrator(designer, $$) • Inkscape(general, free) • Fusion 360(accurate, varies free to $25/m)
- 25. 3D Printer – Rules • Accepts 3D models – STL or OBJ • Careful with overhangs
- 26. 3D Printer – Software Recommendations • Autocad Fusion 360 (parametric) • Blender (freeform, free) • Sketchup(free, plugin to STL)
- 27. CNC Milling – Rules • Accepts 3D models – STL, OBJ, DXF • Think of # dimensions needed • Think of tool diameter (remove square internal corners) • CAD to CAM cost (feeds + speeds)
- 29. CNC Milling – Software Recommendations • Autocad Fusion 360 (recommend) • Blender (freeform, free) • Sketchup(free, plugin to STL)
- 30. Getting it made – Finding Suppliers • http://misformaker.com.au/equipment- access-locations/ • Maker space coming soon • Or Email and we connect you with the right one (hello@misformaker.com.au)
- 31. Thank you gift Each person receives: • $15 off fabrication through M4M • Obligation free consultation • Discount on future presentations • Discount on ‘Custom Earrings’
- 32. fin Any questions, comments… Email: hello@misformaker.com.au Or just ask now! Thank you
- 33. Future • Maker Space • Electronics Class • 3D Modeling software class
Notas do Editor
- Aim: Introduction to the new wave of manufacture Audience: If you have wanted to build something but didn’t know where to start this talk will set you in the right direction
- Engineer, build own things, prototype for people Learnt that it is hard to find the resources Now educate and connect people to resources
- Its about converting computer to real life Use Computer Aided Design, then use a machine that accepts it.
- The way things were done Now how they can be -Doesn’t matter the complexity -Accuracy and repeatability are machines specialty With that, now the skill is in the machine, you just tell if the end result, not technique
- What can you make? Some examples Can see they are varied But certain aspects makes it more useful, short runs, unique, intricate Flat pack furniture Aerospace parts Trinkets / jewelry Prosthetics
- Why Care? Barriers > Anyone can create. Don’t need the skill of putting it together Stock > Design anywhere, manufacture locally will shake up logistics Custom > Some prosthetics $50k, dedicated engineers. now, design once, feed parameters, done. Parametric, bracelets, feed geometry and your size Complexity > Machine time doesn’t change too much on details unlike humans
- Each has different advantages, Know what you want to create then break it down to make it fit We will step though each
- How it works High powered laser on an X Y plotter Cuts Engraves
- Examples of cuts and engraves
- 2D but can snap together Different power lasers from paper to inch thick steel Vinyl makes poisonous gas,
- Burns – wood Warping – plastic melts, may bend Kerf, thin at top, microscopic at bottom but still there
- Material is added together
- FDM – Fused Deposition Modeling Layers built up ‘Additive’
- Draw each Extrusion – PLA, ABS plastics Powder – Exotic plastic, high detail, sandstone Liquid – Uses light curing plastic Sinter – Metals PLA – Plant based, prone to snap, easily recyclable, ABS – Petroleum based, degrades in sunlight and moisture
- Draw internal, show off gear Prototyping – Quick functional model, may not have strength
- O PLA – Plant based, prone to snap, easily recyclable, ABS – Petroleum based, degrades in sunlight and moisture
- CNC – Computer Numeric Control Drill head ‘hogs’ out material
- Draw 2.5D vs 5D Different bits 2.5d https://youtu.be/afr64vZ9NmM?t=4m20s 5 axis https://youtu.be/0WPfmdkK5zo?t=14s https://youtu.be/CqePrbeAQoM?t=1m30s
- Will send an email