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Contact (User Office)

 

Karlsruhe Nano Micro Facility
KIT-Campus North

Building 440

H.-von-Helmholtz-Platz 1

76344 Eggenstein-Leopoldshafen, Germany

 

phone: +49(721)608-23123

fax: +49(721)608-26273

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User Office

KNMF Profile

3D Printing (3DP)

KNMF Laboratory for Micro- and Nanostructuring

3D Printing provides a wide range of possibilities for the realization of freeform 3D structures. Recent developments allow for a wide range of materials to be processed, from pure polymer materials to highly filled composites for creating metal parts. In the FDM process, the material of choice is provided as a filament and molten in a hot end before deposition on the building platform layer by layer.

Download technology description

Contacts (3DP)
Name Phone E-mail
 
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Details (3DP)

Equipment

FDM-Printers

  • Stratasys uPrint SE Plus
  • Leapfrog Xeed
  • Leapfrog Bolt
  • zMorph 2.0 SX
  • Makerbot Replicator 2x

3D Scanning

  • Einscan Pro (Accuracy up to 0.05 mm)

Filament fabrication

  • Filafab Extruder & Winding

Coming soon: 3D Inkjet Printing with dual printheads (multimaterial inkjet)

 
Features

  • Resolution: 50 µm (z-axis), 200 µm (x/y-axis)
  • Accessible printing area: 300 mm x 320 mm x 205 mm
  • Dual printheads (two build materials or one build/one support material)
  • Printhead temperature up to 250 °C
  • Graded structures possible (see Samples)

 
Limitations/constraints

  • Depending on object size & geometry: long build time
  • No transparent objects possible
  • Currently no materials with melting temperature >250 °C possible

 
Materials

  • ABS, PLA, PVA, Nylon
  • Filled materials (optical effects, magnetic, electrically conductive)
  • Custom materials

 
Samples

Sample 1 Sample 2 Sample 3 Sample 4

 
Data

  • STL format
  • Various CAD files can be exported to STL format
  • Wall thicknesses should be multiples of x/y resolution for better accuracy
  • Use correct units during designing the structures
  • Avoid duplexes (use snaps)
  • Overhangs with degrees >30° need support
  • Models must be solid bodies, not surfaces. No open faces, models must be watertight
  • In case of periodic structures a single unit cell is sufficient