In Blender it is easy to create a form and turn it into a round object by using the spin function. I took a foto of a friend. This picture I made a background image in Blender. Then I created a path alongside the profile of the friend. When this was ready I spinned it. It looks great.
Because there is alot of overhang I split the object into three parts. This way I get a very smooth object on the outside and the visualisation of the profile is without disturbances. The bottompart is ready. It took 3:25 hours to print on the Ultimaker. It is 1.1 cm height and 7.7 cm wide.
The spool with the green filament was almost finished. So I had to melt another spool to it. I took white filament. (I don't have more green at the moment) Here is the melted together filament. It is always a little tricky if the this meltpoint will pass smoothly through the extruder.
When it is almost near the extrude I put a little pressure on the filament to encourage it to go through the extrude. This time it went smoothly. Here is the second part of the profile (the top part) at 72% done and after 5:23 of print.
After 6:52 hours the top part is ready. It is 3.65 cm height and 9.1 cm wide. The transition to the white filament went smoothly.
In this image the profile starts to get form. The forehead, eyebrow and beginning of the nose is visible.
The last part took another 5:12 hours to print. The height is 3.35 cm.
And here finally is the complete object. I have still to glue the parts together and will put a better picture later on.
The profile is visible. But you can see the difference between designing and reality. On the computer I have a perfect side view of the object and the profile is correct. In reality perspective is getting in the way a bit...
Here is a picture after I glued it together... I noticed that the split part between the top part and the middle part has not an equal surface allthough it should have been. Between the two lower parts you can see a small gap. This shouldn't be there according to the design. The reason for this is the printer platform. I don't have a heated platform. My platform has to be prepaired with blue tape. This leads a lot of the time to a slightly disformed bottom surface. Because of the cooling and heated part of the object in progress the first layers of filament curls upwards.... The division between the middle and the top part, which were both the toplayers during the print, fit perfectly.
Total Print time: 15:29 hours.
Total height : 8.1 cm
Wide: 9.1 cm
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