Servo Bracket

Lynxmotion Legged Robots
1

Hi,

I would like to make a quadruped robot based on the below one made by david hend:
instructables.com/id/Synopsis/?ALLSTEPS

Do you know if all the part listed are enough to build the robot or do I need something more such as Servo bracket to install the actuators?
Robot Body (Qty. 1) Price: $19.95
robotshop.com/lynxmotion-sym … -mini.html
Aluminum Femur Pair (Qty. 2) Price: $16.95 (each)
robotshop.com/lynxmotion-3-a … air-2.html
Tibia Pair (Legs )(Qty. 2) Price: $19.95 (each)
robotshop.com/lynxmotion-rob … rl-01.html

Thanks in advance for your help.

2

The products in your list will only get you the frame. You would still need the electronics, servo motors, battery and remote control.
robotshop.com/en/lynxmotion- … oller.html
robotshop.com/en/lynxmotion- … oller.html
robotshop.com/en/lynxmotion- … er-v3.html
12x robotshop.com/en/hitec-hs645 … motor.html
4x robotshop.com/en/sea-01-serv … ble-6.html
robotshop.com/en/bat-05-6v-2 … ttery.html
robotshop.com/en/nimh-nicd-s … -1025.html

You will need some spare 0.1" spaced wires / headers for connections between the PS2 receiver, SSC-32 and BotBoarduino.

Hope this helps,

3

Hi CBenson

Thanks for your reply, however you raise some new questions:

What are the advantage to use Lynxmotion BotBoarduino instead of Arduino Mega 2560?
HS-645MG is quite expansive, can it be possible a combination of HS-422 and HS645 instead?
You recommend the SEA-01 Servo Extender Cable - 6", is it for the servo at the end of the legs?

thanks for your help~~

4

The BotBoarduino works directly with the sample walking code, whereas you will likely need to make modifications if you want to use it with the 2560. The 2560 is a better chip overall, but when the BotBoarduino was created, a board which used the 2560 would have been quite a bit more expensive. You’ll need to understand the walking code and troubleshoot yourself if you encounter issues.

Certainly, but at the shoulder, be sure to use 422s for forward and backward motion, and 645MG for up and down. Keep in mind that legs in a walking robot are supporting the weight of the entire robot at all times, so the servos need to provide quite a bit of torque.

Correct.

5

Hi CBenson

Thanks again for your reply and explanation, I already order some stuffs, will need probably some time to build everything~~

should be in touch when I will be in trouble.