norwegian creations @ggdtrd 3d-printing 101
TRANSCRIPT
Bridging the Gap between Idea and Creation
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FIX MAKERSPACE
FIX MAKERSPACE
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Rules
Soon available as printed version in the space See: https://reg.fixtrondheim.no/#/soscon
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Trondheims first dedicated makerspace
AGENDA• What is 3D-printing?
• Different types
• "In depth" about the most common type
• Alternatives to printing location
• Post-print work
• Demonstration: Going from model to 3D-print
PART 1
3D-PRINTING“If it can be imagined, it can be made”
What is 3D-printing?• Additive process
• Many differerent type of technologies
EXAMPLES
3D-PRINTING: 3 MAIN TECHNOLOGIES• Photopolymerisation: SLA, DLP, 2PP
• $ 5000 +
• Merging of powder layers: SLS, EBM, DMLS
• $ 10000 +
• Material extrusion: FDM
• $ 500 +
PHOTOPOLYMERISATION
PHOTOPOLYMERIZATION
• SLA, DLP, 2PP
• Liquid plastic exposed to ultraviolet light.
• Light convert liquid into solid.
MERGING OF POWDER LAYERS
"Powder printing"• SLS, EBM, DMLS
Powder printing
MATERIAL EXTRUSION
Fusion Deposit Modeling - FDM• Cheapest, most common, and simplest
• Typ. resolution: 0.1mm/Z
• Repraps, Makerbots, Solidoodle+++
FDM - cheap?
Solidoodle 4 - $ 599
FDM - cheap?
Stratsys Fortus 250 MC - $ 54 000
FDM - How does it work?
FDM - MATERIALS• Most common: ABS and PLA
• But there exists alot of other materials for FDM: nylon, “rubber”, etc.
FDM - SIZE AND SPEED
• Common printer size: 20 cm^3
• Larger print - Larger challenges...
• Divide and Conquer
• Does it take long time?
MODELING FOR FDM
MODELING FOR FDM - OVERHANG
MODELING FOR FDM - OVERHANG
MODELING FOR FDM - OVERHANG
MODELING FOR FDM - WALL THICKNESS
MODELING FOR FDM - “FILLETS”• Not a requirement...
• But can be great to handle stress
• And print-direction is important for strength!
“WARP”
MODELING FOR FDM - HOLES
• Usually to small after print
• Drill!
MODELEING FOR FDM - ASSEMBLY
• Glue
• Skrew
• Make mechanical threads
MODELEING FOR FDM - SOFTWARE
• Solid-modeling
• STL most common
• But STL is a surface modeling language: Control it for errors
• “Slicer”
RECAP• 3 most common types
• “Liquid” - SLA
• “Powder” - SLS
• “Thread” - FDM
• FDM - Challenges
• Overhang
• Warp
• Wall thickness
• …
• Road from model to 3D-print
• Usually through the file format STL
• STL is a surface modeling language, but a 3D-print is solid. Interpretation errors?
PART 2
• Alternatives to printing location
• Post-print work
• Demonstration: Going from model to 3D-print
FROM MODEL TO REAL LIFE
FRA MODELL TIL VIRKELIGHET
FRA MODELL TIL VIRKELIGHET
FRA MODELL TIL VIRKELIGHET
FRA MODELL TIL VIRKELIGHET
ORDERING 3D-PRINTING
• Exists many different suppliers
• Typical easy online quoting systems based on volume
• Different printers and different materials
SHAPEWAYS
POST-PRINT WORK
POST-PRINT WITH ABS - ACETONE
POST-PRINT WORK - FILLER
• Less “chemical”
• Fill gaps with filler
• Sanding job…
POST-PRINT WORK - KNIFE AND SANDING PAPER
FAVOURITES
QUESTIONS?
DEMO!
QUIZ!
