Then it was assembled.
I connected brake and shift wires. Then rear durailluer adjusted.
I found my poor technique of welding. I couldn't cover the wider hole of BBS.
So I tried it one more time. This time, I used welding rod to cover the large hole.
On above photo, There is a small snake on BBS, it's left welding rod. I welded there with it. I welded some parts of around BBS again. Because my welding technique was poor when I welded the BBS.
I tried to ride this python. However I couldn't ride it today. I had practice for about 2 hours, But I couldn't. The why is that my legs are too shorter. This time, I made my python based on the original pyrhon's website construction page.
Now, I think that I needed re-desigining for my shorter legs.