Hi all i am new to robotics and am trying to build a hexapod bot with bluetooth control and camera modulesand possibly some thermal detection as well.This is for my final year project. I was wondering what kind of parts would be good for my project so far the estimations i have done include the following:
Estimated weight: 1.5-2.0 KG
power requirements:
Not sure about this one i am thinking of using MG996R servos as i had a few from my previous project (and because this is self funding). i will possibly use 2 16 pin servo drivers and connect them with 9 servos each.
i looked at a couple online forum projects and found that someone was using a Li-poly 11.1V 3000mah battery with same servos would this be sufficient in my case ? I was also advised to use a UEBC Converter but not sure how it works exactly.
apart from that i plan to mount a camera module on the robot to see the current location of the robot.
This is really early stages for the construction and i am seeing all alternatives i can for the hexapod. Any help is appreciated
Would servos require energy to hold a leg position or pressure?
Our muscles contract to pull tendons. Forearm powers fingers and mechanical leverages turn short pulls into long swings.
With a stepper motor and a threaded shaft you can pull on cable and hold position without energy cost. What kind of joints will your legs have?
Consider bicycle hand brake and gear shift cables in guides, they have a spring at the end but act push/pull across distance with low mass as mechanical tendons.
I plan to make a spider bot with 6 legs and 18 servos in total 3 per leg. Initially I was thinking maybe I can use some cheaper servos for the middle joints but my professor suggested that it would just create weak links as the total pressure would be distributed among all the 3 motors when the robot is standing up.
The way I want to layout the robot is:
1 Arduino mega in the centre of the chassis with 2 PCB servo controller on both side connecting to 9 motors each and a camera module on the top frame. I would also like a thermal sensor and Bluetooth/wifi module for remote control and a rechargeable battery.
The servos will require to hold the robot up and move as well. Hope that answers your questions and thanks for the suggestion will include that in my alternative design concepts:D
