[kai]

Let me finish my left presentation in this post.
1. My design about connecting rod between booster and 1st stage (I'm not sure about its English jargon) since I came out with this idea by myself.

I use toothpicks and trim them to wooden(or bamboo) sticks:



The white box covering the rod is used to contain separation explosive devices.



And the result is:



2. Some other pictures I'd like to share...








OK. That's all for these days. I will come back and inform you when I finish translating the manual.