Here is our robotic project; Robotrex. A robotic dinosaur. Its name comes from the words `Robot` and `tyrosaurus-Rex`. Inspired from our older projects `Bigfoot` and `the Goggles`, this project was built specially for our endtas. com fair stand in 2004 Izmir international fair. Instead of forgetting it around somewhere under dust i worked on a plyw
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ood cutting plan and a computer model of it to share the project with our visitors. The Robotrex uses the walking principle of the "Bigfoot". But along with the placing of servos to its foot shape and the center of gravity, it has got some important structural improvements which are the results of a careful study which took several days of time before the fair. Just like the Bigfoot, this robot is also powered by two servos. But with one big difference instead of the servo placing scheme of the Bigfoot where the servos were looking towards the outside of the body, (with links also outside) this robot has them all inside the body. The power transferring parts are also placed between the legs, inside the body almost completely hidden. The feet-up-down servo is placed at the back, facing the inside of the robot-body where it used to sit in the front of Bigfoot facing forward. The feet-forward-reward servo is placed at the front bottom, facing backwards into the robot-body where it used to sit at the rear part of The Bigfoot facing down. Where the power of the feet-forward-reward servo is transferred to the legs by means of a iron wire, in Robotrex, a rigid plywood piece is used for the same purpose. And this concludes to a robot which moves more determinently with better balance. The power of the feet-up-down servo is transferred not to the tip of the feet like it is in the Bigfoot but to the mid part of the feet resulting a...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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