Production Techiques

3D printing techniques and materials

For this project we did some research at 3D printing.

We searched for suitable printers and at the same time available printers. At the TU Delft there are the following printers:

The ProJet 360 (3Dsystems)

The ProJet 360 prints white objects from starch powder, which is at the same time the support material. The prints are fragile, to increase the strength of the model it can be sprayed with varnish.

Materials: White starch powder
Resolution: 0.1 mm
Build size: 200x 250 x 200 mm
Print speed: (vertical) 20 mm/hour
Input Format: STL, VRML, PLY, 3DS, FBX, ZPR
Price/cm³ BK students € 0,40

 

The Dimension Elite (Stratasys)

The Dimension Elite prints in nine colors of real ABSplus thermoplastic with a resolution of 0.178 mm , Catalyst software can speed up printing with a layer thicknesses of 0.254 mm.
Modeling bases provide a stable platform where your prototype builds. Once printing is done, you simply take the recyclable plastic base out of your 3D printer and snap off the model.

Materials: ABSplus in nine colors
Resolution: 0.18 mm or 0.25 mm
Build size: 200 x 200 x 300 mm
Print speed:Input Format: STL
Price/cm³ (model and support) BK students €0,60
Modeling base 1/16 modeling base € 0,50

The Objet500 Connex (Stratasys)

These printers are able to print in many different materials and combine them.

Model material: opaque materials (various neutral shades and vibrant colors)
rubber-like flexible materials
High Temperature RGD525 white
Transparent: VeroClear and RGD720
Resolution: Horizontal build layers down to 16 microns
Build size: Objet350: 340 × 340 × 200 mm  
Objet500: 490 × 390 × 200 mm
Print speed: Printing mode builds parts at 12 mm per hour/strip in 16-micron
Input Format: STL, OBJDF and SLC File

Other materials

All printers named above print in plastics. Though it is interesting to look at other materials since the original cups and plates are made of ceramics.

Iris 3D printer MCOR Technologies (Paper)

With the Iris printer it is possible to print full colour in paper. One of the advantages is that the costs are much lower than other 3D print techniques.

Materials: Paper (full colour, FSC certified)
Resolution: 5760x1440x508 dpi
Precision: 0.12 mm
Measurement accuracy: 0.1 mm

Formatec DLP printer (Ceramics)

Though we like to print our final design in ceramics. This is possible with the Formatec DLP printer. Because this method uses ceramic powder it is possible to create more detailed ceramics than with the traditional technique. after printing the product will be fragile and needs to be fired and glazed. Watch the video.

Materials: ceramic powder
Resolution: 40 um
Build size: 76 x 43 x … mm
Print speed: 2.5 mm/h
Input format: STL

 

Potential companies where we can print

Ridix (Rotterdam)

Printers available: Projet 660 Pro (Full color sandstone)
Max. dimensions: 254x381x203 mm
Imput format: STL (monochrome colour) VRML or WRL (full colour)

Myeasy3D (Amsterdam)

Online print service.

Printers available: Iris 3D printer

Dsign & More (Amersfoort) Printing with high resolution

Multi Jet Modeling (MJM)

Multi Jet Modeling is suitable for models with a high level of detail. The support structure of wax is melted away afterwards which leaves a finished end-product.
Materials: Semi-transparent plastic
Resolution: 16 µm
Build size: 300 x 185 x 200 mm
Input Format: STL, STEP, XT, IGS of WRL

(DLP)

With DLP printing it is also possible to print very detailed models
Materials:
Resolution: 15 µm
Build size: 500 x 195 x 108 mm
Input Format: STL, STEP, XT, IGS of WRL

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