Week 06: 3D Scanning and Printing

For my individual assignment I chose printing a downscaled model of the vases I want to print in clay for my final project. I took the design from my week03-assignment on Computer-Aided Design in Fusion360 (Fig.01), since this is a simple (hence supposedly uncomplicated to print) object, which at the same time displays the requested feature that it cannot be produced subtractively. This refers to the processing of a workpiece in a conventional mill: an object that is produced subtractively can only be worked on from the top, hence there is no way to carve voids with overhanging structures - unless the facility is operating a 5-axis device, which is not the case in Kamp-Lintfort. The design was delivered from Fusion360 to Cura as a .stl-file (Fig.02).

Fig.01: Pot design in Fusion360.

Fig.02: Layer view of pot design in Cura.

Cura was adjusted to using a Delta WASP 4070 printer with the following settings:

Profile: fine
Layer Height: 0.2mm
Wall Thickness: 0.8mm
Top/Bottom Thickness: 0.8mm
Infill Density: 10%
Printing Temperature: 200°C

Build Plate Temperature: 60°C
Diameter: 2.85mm
Flow: 100%
Enable Retraction: yes
Print Speed: 60mm/s
Travel Speed: 120mm/s

Enable Print Cooling: yes
Generate Support: yes
Support Placement: Touching
Build Plate Adhesion Type: Brim
Brim Width: 8.0mm
Print Sequence: All At Once

The printer's base plate was prepared with adhesive tape (Fig.03). Unfortunately, the settings did not work very well with the Delta Printer, Fig.04 & 05 show the initial mess. The outcomes improved slightly after increasing the printing temperature manually on the printer to 215°C (Fig.06), still the vase's neck did not come out (Fig.07). Finally, switching the printer to an Ultimaker 2+ Extended with a 0.8mm nozzle did the job after changing the width of the wall from 0.8mm to 2.5mm (Fig.08).

Fig.03: Printer preparation with adhesive tape.

Fig.04: Misprint in action.

Fig.05: Misprinted filament from Delta WASP.

Fig.06: Delta WASP display to be adjusted from 200°C to 215°C print temperature.

Fig.07: Complete vase with misprinted neck.

Fig.08: Final print.

The scanning assignment was performed on my original hand crafted claypot that I brought from Peru (Fig.09), using a Mini iPad with an iSense lens (Fig.10).