Showing posts with label maker. Show all posts
Showing posts with label maker. Show all posts
Friday, 17 February 2017
Build Electronic Project for Home Made Movie Maker
Like real movies, this circuit makes use of a characteristic of the human eye and brain known as the persistence of vision. A sequence of still pictures is projected onto a screen in rapid succession. The pictures differ slightly from one another and the brain interprets the succession of still pictures as continuous motion.
Here the pictures are shadows cast by low-voltage lamps. There are four Lamps in all, which glow in sequence cyclically. This gives the illusion of a simple but realistic movie.
Fig. 1 shows the circuit for the movie maker. It is driven by clock pulses provided by NAND gates N1 and N2. The flickering frequency is adjustable through preset VR1. A suitable rate for perceiving continuous motion is 16 Hz. The clock pulses are fed to counter IC CD4022 (IC2). IC2 has eight outputs, but only the first four (0-3) are used in this circuit. The outputs go high one at a time, in sequence. The fifth output (output 4) is connected to the reset input so that the counter is immediately reset at the fifth count and the first output (output 0) goes high.
The counter outputs are fed to CD4049 hex buffer (IC3). The buffer outputs drive transistors T1 through T4 in a sequence. As each transistor conducts, the lamp connected to it glows. The lamps are rated at 0.3A so these provide enough light to operate the movie show in a dimly-lit room.
Fig. 1: Circuit for movie maker:
Assemble the circuit on a general-purpose PCB. Power-on the circuitusing switch S1 and make sure that the outputs of IC2 (0 through 3) are normally low but briefly go high three-four times within a second. Also ensure that the lamps flash one at a time in a repeating sequence. If the sequence appears to be wrong or any of the lamps fails to glow, check the wiring. The light shield and film holder can be made of a thin card, sheet metal or plywood. Strictly adhere to the various dimensions as shown in Fig. 2. Otherwise, the shadow images may fail to register properly when projected.
Use a plastic cabinet as shown in Fig. 3 to hold the circuit board and battery. Owing to the power requirements of the lamps, it is more economical to use four 1.5V cells in a battery box. Else, you can use a 6V power adaptor.
Fig. 2: Assembly arrangement:
There are two ways of mounting the lamps. The more satisfactory but more expensive method is to bolt the four lamps. Alternatively, drill four 1cm dia. holes on the front of the cabinet, wedge the base of the lamps in these holes and solder wire to the bases.
Fig. 3: Plastic case with assembled circuit:
The easiest way to prepare the film frames is to photocopy the desired drawings onto transparent films. Alternatively, trace them on a transparent acetate film or draughtsman's film, using a fine marker pen. Align all the drawings on the frames and project onto the screen.
Fig. 3: Flim making:
Working of the circuit is simple. First of all, fix the clock frequency at about 16 Hz. Place the film on the holder. Ensure a distance of 12 cm between the screen and the assembled unit and power-on the circuit using switch S1. Now you can see your drawings as a short movie clip on the screen.
EFY note. We have tested this circuit without the mechanical arrangement.
Here the pictures are shadows cast by low-voltage lamps. There are four Lamps in all, which glow in sequence cyclically. This gives the illusion of a simple but realistic movie.
Fig. 1 shows the circuit for the movie maker. It is driven by clock pulses provided by NAND gates N1 and N2. The flickering frequency is adjustable through preset VR1. A suitable rate for perceiving continuous motion is 16 Hz. The clock pulses are fed to counter IC CD4022 (IC2). IC2 has eight outputs, but only the first four (0-3) are used in this circuit. The outputs go high one at a time, in sequence. The fifth output (output 4) is connected to the reset input so that the counter is immediately reset at the fifth count and the first output (output 0) goes high.
The counter outputs are fed to CD4049 hex buffer (IC3). The buffer outputs drive transistors T1 through T4 in a sequence. As each transistor conducts, the lamp connected to it glows. The lamps are rated at 0.3A so these provide enough light to operate the movie show in a dimly-lit room.
Fig. 1: Circuit for movie maker:
Assemble the circuit on a general-purpose PCB. Power-on the circuitusing switch S1 and make sure that the outputs of IC2 (0 through 3) are normally low but briefly go high three-four times within a second. Also ensure that the lamps flash one at a time in a repeating sequence. If the sequence appears to be wrong or any of the lamps fails to glow, check the wiring. The light shield and film holder can be made of a thin card, sheet metal or plywood. Strictly adhere to the various dimensions as shown in Fig. 2. Otherwise, the shadow images may fail to register properly when projected.
Use a plastic cabinet as shown in Fig. 3 to hold the circuit board and battery. Owing to the power requirements of the lamps, it is more economical to use four 1.5V cells in a battery box. Else, you can use a 6V power adaptor.
Fig. 2: Assembly arrangement:
There are two ways of mounting the lamps. The more satisfactory but more expensive method is to bolt the four lamps. Alternatively, drill four 1cm dia. holes on the front of the cabinet, wedge the base of the lamps in these holes and solder wire to the bases.
Fig. 3: Plastic case with assembled circuit:
The easiest way to prepare the film frames is to photocopy the desired drawings onto transparent films. Alternatively, trace them on a transparent acetate film or draughtsman's film, using a fine marker pen. Align all the drawings on the frames and project onto the screen.
Fig. 3: Flim making:
Working of the circuit is simple. First of all, fix the clock frequency at about 16 Hz. Place the film on the holder. Ensure a distance of 12 cm between the screen and the assembled unit and power-on the circuit using switch S1. Now you can see your drawings as a short movie clip on the screen.
EFY note. We have tested this circuit without the mechanical arrangement.
Source: EFY
Thursday, 29 September 2016
Get Circuit diagram maker freeware
Topic Circuit diagram maker freeware
Electrical diagram software - create an electrical diagram, Electrical diagram software. then you can use the built-in electrical symbols to prepare and present your electrical diagrams in only a moment..
Electronic circuit design and simulation software list, A list of circuit simulator softwares to download for free. electronic circuit design,analysis,and simulation software based on linux,windows,mac os..
Free visio diagram downloads, Visio diagram software free downloads and reviews at winsite. free visio diagram shareware and freeware..
Building the circuit « the ek's files, Pc board parts and foil layout. these diagrams are not drawn to scale. if you want to make your own board, download this file. see the readme.txt file in that file.
Freeware - wikipedia, the free encyclopedia, Freeware is proprietary software that is available for use at no monetary cost. in other words, freeware may be used without payment but may usually not be modified.
Filter design 4.5 download (free) - filter.exe, Filter wiz pro filter wiz pro provides esketch-like simulation of the filter design..
There are tree reasons why you must see Circuit diagram maker freewareFind here about Circuit diagram maker freeware
you have found it on my blog Before going further I found the following information was related to Circuit diagram maker freeware
here is some bit review
Some images on Circuit diagram maker freeware
Friday, 9 September 2016
Topic Wiring diagram coffee maker
Info Wiring diagram coffee maker
Wiring diagram of samsung microwave oven | electronics, One of my erg members by the name of amitava sen drawn the wiring diagram of samsung microwave oven. if you repair microwave oven i believe it will be a help to you..
Appliance repair los angeles - los angeles appliance repair, With over 25 years in los angeles, appliance repair los angeles has been providing repair, installation and maintenance, for most of the major brands of appliances.
Whirlpool refrigerator parts | same day shipping, Buy whirlpool refrigerator parts to repair your whirlpool refrigerator at partselect appliance parts. great prices on all whirlpool parts you need to help you repair.
Philippine electrical wiring – building our philippine, Wiring your philippine house. philippine electrical wiring. as part of our project to build our house in the philippines, we had to learn about philippine.
Build a behemoth cold brew coffee drip tower | make:, A cold-brew coffee tower consists of three main parts: a water receptacle at the top with a drip control valve, a chamber for grounds in the middle where the brewing.
Wiring termination instructions and diagrams - rj11 and, Schematics, instructions and diagrams for terminating your rj11 and rj45 network cables to network plugs, jacks, or patch panels. cable termination made easy!.
There are tree reasons why you must have Wiring diagram coffee makerDetailed information about Wiring diagram coffee maker
and your search ends here the results of research that many people look for a pdf version too to find Wiring diagram coffee maker
here is the content
Foto Results Wiring diagram coffee maker
Subscribe to:
Posts (Atom)