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3D Printing: And its use in RC Modeling

3D Printing: And its use in RC Modeling. Dan Frey 17 NOV 2015. 3D Printing. Makes part from CAD files (STL format) Builds layer by layer ~ 0.010” thick (or thinner) Thermoplastic materials (ABS, PLA, Nylon) mostly Machines now as low as $175, many ~$500, can be >$30K

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3D Printing: And its use in RC Modeling

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  1. 3D Printing:And its use in RC Modeling Dan Frey 17 NOV 2015

  2. 3D Printing • Makes part from CAD files (STL format) • Builds layer by layer ~ 0.010” thick (or thinner) • Thermoplastic materials (ABS, PLA, Nylon) mostly • Machines now as low as $175, many ~$500, can be >$30K • Or outsource your parts

  3. 3D Printing Technologies • Stereolithography • ZPrinting (liquid binding of powder) • Selective laser sintering • Mask image projection • Fused deposition modeling (extrusion deposition)

  4. Dimension uPrint • Fused deposition • ABS thermoplastic • Support material dissolves in solution of NaOH and detergent • Good for large overhangs and possibly for assemblies with relative motion among parts • Build volume 8 x 6 x 6 in • ~$30K

  5. MakerBot • Fused deposition • ABS or PLA • Some have thermally controlled environment • Heated bed • Build volume 10x10x12cm • $1400 (mini) up to $6500

  6. Fabrikator Mini • Fused deposition • ABS or PLA • No thermally controlled environment • No heated bed (masking tape used as bed surface) • Build volume 8 x 8 x 8 cm • ~$180 (plus shipping)

  7. PLA Plastic ~$30/kg

  8. Form 2 • SLA technology (liquid selectively polymerized by laser) • 0.0055” layers • Object pulled from above • 14.5 × 14.5 × 17.5 cm build vol. • Waxy support material removed using high pressure water spray • ~$3500

  9. Objet Connex • Mask image projection (sprays 8*10^6 dropslets/sec) • 0.0006” layers • 19x15x8” build vol. • Waxy support material removed using high pressure water spray • “Digital Materials let you incorporate a range of hardnesses, opacities, shades or thermal properties into a single model…”

  10. eos Formiga • Selective Laser Sintering (SLS) • 0.06mm layers • No support material needed (unbound powder inherently supports the part) • Machine ~$1M

  11. Outsourcing (rather than owning a 3D printer) • e.g. shapeways.com • Has SLS nylon parts (“strong and flexible plastic”)

  12. Materials • Wood • Alum • 3D print

  13. Mark One Composite 3D Printer • Fused deposition • Carbon fiber, fiberglass, nylon • Machine ~$5.5K

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