My messy timeline fo the final project.

The first idea

Was to make a quick change multi head machine. Like a 3D printer with laser cutter, cnc and the 3D printer head. Some classmate told me there's a company already making those kind of machines called "Snapmaker", the difference with mine, was that you had to make the change manually, I wanted to do it automatically.

What happened is that it was a very big project for the amount of time we have, I started searching for some pieces I would need and everything is already prefabricated. And the last main thing, there is no market near where I am for those king of things. So discarded.

The second idea

I found some very very old funny chairs that work with vibrations on a plate on the feet, but I noticed everything was very old, and there are many ways I can renovate it, starting with the system, it works with coins and everything is analogic. The idea is to make it digital and add some more features. And renovate also the design.

The producers are footise wootsie and creative concepts, at least thats what the mother board says. I looked for them on internet and I just found very old images.
This one sounds like a good option, I can recreate almost everything and hopefully reuse some pieces (like the metal plate). I haven't found anything like this where I am and there are potential final users than just me. BUT ooooooh, that might be too easy, think something else.

The third idea

Alright, ¿what does industrial consumers need?, Thought about automatizing an industrial process. There is a torque wrench calibration process that that is mainly made by hand, and operator has to repeat the same movements a lot of times, The idea is to automatize that process.
The idea sounded good but this was definitely too easy, It was basically a motor with a (reused) metallic structure and everything was software.
There is a specific final user and specific companies who has already made something like this, C.S.C. Force measurement, INC. and Norbar Torque tools.

With this was also the idea of making a torque transducer with its data collector. That might be too difficult

And still not decided jet.

The final decision

I finally decided to do a remote control car, this car will have a fixed camera on the front so I can see what it sees so I don't have to go behind him all the time I also thought about adding some distance sensors to the rear of the car so I can now if there is something behind it. I wanted it to be kind of a race car but maybe it's better to make it a cargo cart so I can bring thing without having to go for it.

Research

The turning system

What do we need to make a project like this, we need a radio controller, and the car it self. The car, I want the car to have lights, a buzzer, the motors, a camera, it needs a direction and design to put everything together. Now, Talking about the direction system, I know there are 3 main options, the regular direction, with a rack and pinion, servo motor, track, and the suggestion of my local instructor, Omni wheel.
The first option: the rack an pinion is composed by the two front wheel connected to it with a mechanical mechanism which let the wheel rotate and turn at the same time.

Just like this one, this kind of direction is easier to program but the mechanism is kind of complex to make with out braking it on the first crash. I also would like to add that this kind of direction are usually implemented on rear-wheel drive cars, because the the turning wheel need to rotate at different speed, so with this option I would need to implement a deferential, the direction system and I would be using just one motor.

The second type of direction I thought about is the one that you can see on the tanks for example, if you want turn, you have to move just the wheels on the other side, or you can turn the side on the other side the opposite direction to have a faster turn, you can also slow the velocity on one side, to give a smaller turn. The main advantage of this kind of direction is that you can turn 360º on the same place, you don't need to make a whole circle to turn and it is almost immediate, the disadvantage/advantage is that you need at least two motor, one for each side of the car.

Now, for the last option, the omni wheel, this wheel has a very strange design but it allows you to move in different directions without really turning the car, so you can turn without displacing, you can move to a side without turning and crazy stuff. That's a curios option, the disadvantage is that is quite harder to program, and I would need a rotating camera so I can see what's going on on the direction I'm going. On the other hand, each wheel needs it's own motor, and that's what I'm looking for and the mechanism is more simple than the first one. I have to add the fact that my local instructor recommended me this option because of it's simplicity.

So with this last option the number of components and energy consume grows, but I'm looking for a 4wheel drive, and the quick turn sounds like a great option. In addition the turning camera sounds like a good challenge, and in case I couldn't finish, the car can still work without the turning camera.

The communication system

There are 3 main types of wireless communication: bluetooth, wifi , radio frequency. However this kind of toys usually work with radio frequency, so, that's seems like a great option except for the distance and obstacle range of the signal. This kind of signals are easily affected by the surroundings, specially if there the same signal around.

2D and 3D Modeling

Add here your modeling and design.

Some other section

This is an updated text.

Materials

Name	Qty	Description	Link
Batteries	Order many	Rechargeable batteries	https://amazon.com/testoe
Camera	1
Motor	4	https://amazon.com/testoe
Screen	1	https://amazon.com/testoe
Distance sensor	2	https://amazon.com/testoe