The head will be powered by servomotors and will be built from sheet plastic, metal or plywood. The template which can be used for cutting sheet material can be found at the end of this article. Download the template, compare the size of the printed servomotor with your servomotors at hand. Do the necessary resizing operations by photocopying the
Click here to download the full size of the above Circuit.
print, or you may directly print at the desired dimension. Copy the print onto the sheet material, you may use a simple carbon paper and do the copying by redrawing the lines by hand. The hand will apply some pressure on to the carbon paper and enable it to leave marks on the sheet material. The marks will be the outlines of the template. Cut the marks with a thin plywood saw untill you complete all parts of the head. Sand them a bit to have nicer looking and well fitting parts. After cutting, assemble all pieces according to the renderings in this article. The head at this article is designed to be powered by 7 servos. So the eyes move independently looking to sides, up and down. The head can turn (look) right-left, up and down. The jaw can also move to do movements like speaking or laughing. The article continues with renderings, parts cutting template, various example circuits and microcontroller source codes. Read on, and don`t forget to add your comments ;) The opposite is of course possible. The number of servos can be reduced. to fore example 4 servos. With less servos, the cost of the head will be much lover though the most expensive parts are the servos. The moving parts can be selected as you wish; either the head itself, eyes, or the jaw can move. The independent moving eyes can be connected to the same servo so turn to the same side. With oz ser 1 chip, you can use 6 onboard push-buttons to program 4 servos...
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.....
characters left: