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As one who builds electronic circuits I've tried to create a virtual version
of the famous 555 astable LED flasher. I had problems with the breadboard
creating the holes; using a loop took too long and without wasn't much
faster. So, I created the holes of one row in a block just once and then
used that again and again to build the breadboard.
Any comments please!
James S.
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Attachments:
Download 'astable 555 on cbreadboard.jpg' (0 KB)
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Sorry, no picture, I'll try again...
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Attachments:
Download 'astable 555 on breadboard.jpg' (170 KB)
Preview of image 'astable 555 on breadboard.jpg'
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"JS" <bos### [at] yahoo couk> schreef in bericht
news:web.46fc3228b72f4cd2b6429ee0@news.povray.org...
> As one who builds electronic circuits I've tried to create a virtual
> version
> of the famous 555 astable LED flasher. I had problems with the breadboard
> creating the holes; using a loop took too long and without wasn't much
> faster. So, I created the holes of one row in a block just once and then
> used that again and again to build the breadboard.
>
That is indeed the fastest way, as is also explained by Mike Williams:
http://www.econym.demon.co.uk/holetut/index.htm
Thomas
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"JS" <bos### [at] yahoocouk> wrote:
> As one who builds electronic circuits I've tried to create a virtual version
> of the famous 555 astable LED flasher. I had problems with the breadboard
> creating the holes; using a loop took too long and without wasn't much
> faster. So, I created the holes of one row in a block just once and then
> used that again and again to build the breadboard.
>
> Any comments please!
>
> James S.
Hi James
This takes me back a few years. Why did you not use a 556 and you could have
twice as many flashing lights for the same virtual money? :-)
Comments:
I want to see it flashing so you need to animate it. :-)
The devil is in the detail as they say, so this is an excellent project (I
circuits albeit quite a while ago.
I like the modelling, especially your resistors and colour code markings
(BBROYGBVGW).
The Ceramic Cap could do with a small blob on the end of the leads.
The 555 should have a seam round the body where the legs enter it, Did you
intersect the numbers from the body? IIRC the numbers were printed on along
green LED looks too flat. (Maybe make it more transparent and put a small
light source inside. Or you could use media.)
The wires from the battery are too regular, a sphere sweep might help.
The leads from the unused components are too clean. Maybe a few scratches
through the oxide to the metal?
With the breadboard you did the right thing about the holes by referencing
one block but again IIRC the holes should be square and we should be able
to see the contacts inside.
you connect pin 4 to the supply using three links? Did you run out of wire?
:-)
One last thing, use a skysphere so that you have something for your shiny
components to reflect.
I know that I have criticised just about everything but you are close to
having a really good image.
Stephen
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You might already be aware of it, but there's a great library of pov models
of electronic components at:
http://www.matwei.de/doku.php?id=en:eagle3d:eagle3d
It's set up for use with the Eagle layout software, but I don't have that,
so I've just been using the library of components and manually placing them
in a hand-coded scene.
Ken
JS wrote:
> As one who builds electronic circuits I've tried to create a virtual
> version of the famous 555 astable LED flasher. I had problems with the
> breadboard creating the holes; using a loop took too long and without
> wasn't much faster. So, I created the holes of one row in a block just
> once and then used that again and again to build the breadboard.
>
> Any comments please!
>
> James S.
Post a reply to this message
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JS nous apporta ses lumieres en ce 2007/09/27 20:00:
> Sorry, no picture, I'll try again...
>
>
> ------------------------------------------------------------------------
>
I've done some hobying like that. The printing on the 555 is prety plain and
white: use some san-serif font like arial of some simple font. It also bear some
logo and a serial number.
The legs are way to shiny, those I still have are rather dull.
The wires of the various components looks to perfect.
The board itself looks to shiny and to flat. The square holes had curved in
edges. Also, there was rails-like extentions on all sides to allow you to
assemble several boards together.
My connector wires all had "U" shapes when in use and were never flat against
the board.
You use a "B" type batery. The contacts are blade-like, round ended and somewhat
jutting up, they also, usualy, are brass coloured. You usualy use paper clips to
tie in the wires, there is no hole where you can plug them in.
--
Alain
-------------------------------------------------
Any society that would give up a little liberty to gain a little security will
deserve neither and lose both.
Benjamin Franklin
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Thanks for your comments but:
*My components that I have bought new DO have shiny leads.
*I found it easier to use rectangle bending.
*You must have a different battery to the one I used to make the model.
James S.
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Thanks, indeed the LED's need work, however, I did use a skysphere. The
circuit is a 555 standard astable or LED flasher. Pin 4 is reset which is
connected to +4.5V so it doesn't reset. The reason there are so many links
is beacuse of the limitation of bending the wires.
James S.
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JS nous apporta ses lumieres en ce 2007/09/29 18:51:
> Thanks for your comments but:
> *My components that I have bought new DO have shiny leads.
> *I found it easier to use rectangle bending.
> *You must have a different battery to the one I used to make the model.
>
> James S.
>
>
The one "B" battery I ever saw was several years ago, and it was an old dead
one, maybe they changed the model since. I can't find any now, and for the last
40 years, in my area.
--
Alain
-------------------------------------------------
Caught Asleep At Your Work Desk
Just in case your boss catches you asleep at your desk, be ready to blurt out
this excuse #1: I was working smarter - not harder.
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Among other things, Alain saw fit to write:
> JS nous apporta ses lumieres en ce 2007/09/29 18:51:
>> *You must have a different battery to the one I used to make the model.
>>
> The one "B" battery I ever saw was several years ago, and it was an old
> dead one, maybe they changed the model since. I can't find any now, and
> for the last 40 years, in my area.
I don't know the English or standard name, but I think what James tried to
model was this type of battery:
http://www.maplin.co.uk/Module.aspx?C=SEO&U=SiteMapByDept&ModuleNo=31494
which, I agree, has round ends in the blades (and a sweet-metallic taste if
you touch it with your tongue).
--
light_source{9+9*x,1}camera{orthographic look_at(1-y)/4angle 30location
9/4-z*4}light_source{-9*z,1}union{box{.9-z.1+x clipped_by{plane{2+y-4*x
0}}}box{z-y-.1.1+z}box{-.1.1+x}box{.1z-.1}pigment{rgb<.8.2,1>}}//Jellby
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