ivver

Nope, there is none, I've added it later.

It's on the end of instructables.

I haven't completed the project because back then when I was working on that I didn't knew that much programming and so I went to buy proper equipment for drones, that turned out to be much safer and better idea. All in all, I don't have a code finished, sry.

Cad files are at the end of instructables

Rx on arduino to Tx on BT, and vice versa

around 2000 mAh, but voltage is more important, it's 3s, so it's 12V

Well, program is not plug and play type, you have to set your own angles. Principle of moving is by using the loops, when you press forward, loop for moving forward is compiling, there is no inverse kinematics here, you have to spend some time to fine tune its steps.

How do you make molds?

Each step (leg up, leg forward, leg down, leg backwards) is written in void loops, click on the phone send command via Bluetooth to arduino to "play" one or more of these loops. There is no inverse cinematic, just dummy approach to move hexapod :)

Why should I use servo controller? There is servo library which is programmed to use pwm on all digital outputs ;) google it