OT (a little bit) nice job!

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We just had a course at uni building a small mechatronic system (using avr micros of course!). These photos were from a group of get this, (international) masters students! It reminded me of a quote one time i heard from Prince Philip,husband of Queen Elizabeth, a guy renowned for making some awsome comments, one of his best was........

Quote:
"It looks as though it was put in by an Indian." -- Observation on a messy fuse box during a visit to a factory in 1999.

now i really know what he meant!

enjoy!

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Hmm, looking at the PCB's and relays, it looks like this post must have been delayed about 30 years.

/Jesper
http://www.yampp.com
The quick black AVR jumped over the lazy PIC.
What boots up, must come down.

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So this is what it would look like if I just went and wired up my electronics according to the -Rats nest- in my PCB layout software...

But as long as it's doing what it's suppose to do, I think it's cool... As long as you don't have to fix anything later on...

"...Is this the FIRE switch or is it the DISARM switch...??"

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Hey, you don't have to be so nasty.
I guess that there still is something more to wait for, to see: An AVR device with vacuum tubes (== thermionic valves) on board...

Giorgos.

I hope for nothing; I fear nothing; I am free. (Nikos Kazantzakis)

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Wow! This should be shown to all newbies: - "Look kids, that's what happens when you're too lazy to make your own PCB's. The author of this was caught inside of this knot and died of suffocation when he tried to add another I/O port".

I actually have seen some projects with wirewrap.. They are not necessarily awful looking - take a look at http://www.homebrewcpu.org for example. But I'm always wondering, how do you find a problem when something goes wrong and how do you fix it in such a mess?

The Dark Boxes are coming.

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Replace the veroboards (?) with some breadboards & make all the cables the same color and You're
pretty close to what I call my "latest project" :-)

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Even worse...

JChristoff
Illinois

Last Edited: Fri. Jan 7, 2011 - 04:49 AM
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jussishow wrote:
Replace the veroboards (?) with some breadboards & make all the cables the same color and You're
pretty close to what I call my "latest project" :-)

Ok, here' s a photo of my old project that made me absolutely positive that PCB's are very very very necessary.

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The Dark Boxes are coming.

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Eeek ! A Medusa project ! ;-)

/Jesper
http://www.yampp.com
The quick black AVR jumped over the lazy PIC.
What boots up, must come down.

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What? Don't you build stuff that way :wink:

---
Formerly Torby. Stitch626 just seemed a more descriptive nicname.

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There are folks here who need to be introduced to 30ga. wire-wrapping wire. Maybe some soldering classes too!

I like cats, too. Let's exchange recipes.

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Bah, amateurs. At the university I graduated from it was common for Xilinx FPGAs (the multi-hundred pin ones) to be wirewrapped. :)
That said, wire-wrapping really isn't that bad compared to a PCB _if_ it is done right. It is much cleaner to unwrap and rewrap a
30awg wire to move a "trace" from one pin to another than to hack and slash a fibergalss PC board. I know, I have done a lot of
each. Mind you I'm referring to first run prototypes on a budget here, not production quality work. Once you are reasonably
certain of the connections and layout then spin a board and enjoy the beauty. :)
-Will

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whein wrote:
Bah, amateurs. At the university I graduated from it was common for Xilinx FPGAs (the multi-hundred pin ones) to be wirewrapped. :)
That said, wire-wrapping really isn't that bad compared to a PCB _if_ it is done right. It is much cleaner to unwrap and rewrap a
30awg wire to move a "trace" from one pin to another than to hack and slash a fibergalss PC board. I know, I have done a lot of
each. Mind you I'm referring to first run prototypes on a budget here, not production quality work. Once you are reasonably
certain of the connections and layout then spin a board and enjoy the beauty. :)
-Will

I was just going to post the same thing. I still wire-wrap most of my hobby projects.

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At least those works of art have more than one colour wire.
I did this card some 18 years ago, and as Henry Ford said: You can have it any color you like, as long as it's black.

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Didn't your significant other try to remove cobwebs from the otherwise good looking pretty greeny board? :)

The Dark Boxes are coming.

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If you bill your time out by the hour I find it's cheaper to just have PCBs made up. I do this even for the proto phase. Less errors and faster.

Ken