eXtrudy App for Android Launches - 2d to 3D

[old man emu]

so I've added a version with audio for tutorial 10 (might still take a while until the upload is done) - I hope it proves useful to you:

http://youtu.be/hTTwjfHuhcA

Viewed the video. It provides a good explanation of the process, however, I have these questions:

1. Where do you define the measurement system. I see that at the end of the process, you can scale in millimetres, but what is the measurement system used in the earlier stages such as when setting depths within the boundaries of the object? (Adding Decoration section)

2. Are our American friends required to use the metric system when the stl file is generated, or can the file be generated in the Imperial system?

3. How would you use this software to create an object such as a rubber duckie like this?
Rubber Duck.jpg
4. Would you add narration to Tutorial 7, please?

OME