General concept

Our first idea was to create a tracked robot able to climb stairs and plenty of others obstacles, to reach a good speed (around 10 or 15 km/h) while filming and transmitting data. It will decide itself if it can go through an obstacle like a slope, stairs or a hole.  Recognizing people and following them, take panorama pictures, follow a GPS designate way are its objectives.

Step 1: Chassis

We made a wooden chassis because wood is cheap and easy to transform. We used 5 mm plywood. This chassis need to be quite big if you want to set batteries, engine and electronics in it and suspensions, wheels and turret at the exterior; there is no maximum size but making it too big can be a problem  for the gravity center of the robot when it climbs stairs.
Very cool looking vehicle. I am glad you posted this. I have been collecting parts for a robot project for a few weeks and was about to make a small rc car sized vehicle. After seeing your larger project, this seems like a better idea for future upgrades and experiments. Could you post the size of the engines (I could not find it in the pictures) and is power supply you are using a 12v lantern battery? It looks like it has individual cells. Also, how heavy is the wooden frame you created? For less jostling, I was going to use a rubber disk suspension, but that might not be enough if the vehicle is weighty. <br> <br>Thanks again for posting this. Great job! <br> <br>C Anderson
We are currently using some parts of a RC tank (1/16). But we have some problems, two plastics gears just broke while we were trying to move the robot. <br>We are looking for some new gear (maybe int metal) and new motors. <br>Here is a link of similar stuff : http://www.absolu-modelisme.com/chenilles-metal-german-panther.html <br>I don't know &quot;Lantern battery&quot;. <br>But we are using a 12V lead battery for the RaspBerry Pi and the arduino (after DC/DC conversion). <br>For motors, we are using a 11.1V Li-Po battery with 2200mAh, but we will probably use a bigger one after. <br> <br>The wooden frame is very strong, we can load it with 5kg and more without any problem. <br> <br>The approximate weight of the robot is 5kg with all the electronic/motors/batteries... <br> <br>I hope it will help you, if you have other question, ask me! <br> <br>SnowViet <br> <br>PS : tell me about the evolution of your project.
Thanks u very much big help
You're welcome!
What did you use for the creation of the blueprints?
For 3D modelisation, I used SolidWorks. <br>It's not the best but I used it in school.
What software did u use.
For 3D modelisation, I used SolidWorks. <br>It's not the best but I used it in school.
Thanks for the upload.
This looks cool, <br> <br>and &quot;Tanks&quot; for posting it
GREAT JOB! Can't wait for vids. Let me know when this project is complete, I would like to feature it. <br /> <br />Audrey <br />Community Manger <br />Instructables.com
Thanks for your feedback ! <br>I added some videos, hope you will enjoy. <br>We had a problem with the motor gear, so next update will not be soon.

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