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Topic: Dont Waste Your Time (Read 872 times) previous topic - next topic

DuaneB

Hi,
   I have just wasted another hour trouble shooting a working circuit that I have moved from breadboard to strip board, yet again the problem was a very small join between the copper tracks.

   How hard can it be to make strip board !

   Morale of the story, it takes less than a minute to check continuity track to track, but more than 30 to find a short after building.

   Duane B

rcarduino.blogspot.com
 
Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

MarkT

That's why glass fibre backed stripboard is worth the extra money...  I've seen some pretty shoddy paxolin stripboards - but you can usually tell with careful scrutiny if the make of board is suspect.
[ I won't respond to messages, use the forum please ]

DuaneB

Hi,

Mine are labelled 'altronix, made in japan'

They are the only ones available here and are generally pretty bad.

Duane B

rcarduino.blogspot.com

Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

GoForSmoke

I learned the term Go For Smoke from some EE friends about 30 years ago. Hairline traces were both problem and opportunity for fun with them. They would apply a few amps of 12V to supposed to be different traces on the board to overload the hairlines. When the glue under the trace goes with it, you get smoke! So the routine was while one wielded the contacts, the rest chant "Go for smoke! Go for smoke!".

Did I mention we were young back then?

Nick Gammon on multitasking Arduinos:
1) http://gammon.com.au/blink
2) http://gammon.com.au/serial
3) http://gammon.com.au/interrupts

DuaneB

Hi,
   Thats something I hadn't though of, I had a track appear to crumble away on a circuit recently, from what you say it was possibly another unseen short.

Here it is after bridging -



Duane B

rcarduino.blogspot.com
Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

AWOL

We used to blow them out with a 200A 5V supply, using auto jumper cables.
Happy days. {{sigh}}
"Pete, it's a fool looks for logic in the chambers of the human heart." Ulysses Everett McGill.
Do not send technical questions via personal messaging - they will be ignored.

GoForSmoke

AWOL, I bet that was fun! A little overkill but if it works, WTH?

DuaneB, any time you get dissimilar metals in contact there is some potential between. Often some moisture will complete a circuit (a bit like a lemon battery) and one of the metals will corrode from oxygen in the air. It happens a lot when people nail aluminum gutters and siding up with steel nails. Maybe that is what happened?

Nick Gammon on multitasking Arduinos:
1) http://gammon.com.au/blink
2) http://gammon.com.au/serial
3) http://gammon.com.au/interrupts

DuaneB

Hi,
   While there is certainly a lot of electolyte rich sweat in the Dubai heat, these strip boards are just plain bad quality. On some the copper strips visibly wander and on some the pin spacing changes, the worst do both ! I try to pick the best, but as there never seems to be any new stock my selection is getting worse and worse :-(

Duane B.

rcarduino.blogspot.com

Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

CrossRoads

Any chance you can order some boards from a Velleman distributor for delivery there?
They make high quality boards, its the only kind I build on.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

DuaneB

Hi,

I will get the wife to pick some up when she is in Europe next month, I am also desperate for heat shrink small enough for component wires. In Dubai you can buy the parts to start anything whatever your interests are, you just can't buy the parts you need to finish it.

There is a metaphore for The city as a whole in there somewhere.

Duane B

rcarduino.blogspot.com



Read this
http://rcarduino.blogspot.com/2012/04/servo-problems-with-arduino-part-1.html
then watch this
http://rcarduino.blogspot.com/2012/04/servo-problems-part-2-demonstration.html

Rcarduino.blogspot.com

retrolefty


Hi,

I will get the wife to pick some up when she is in Europe next month, I am also desperate for heat shrink small enough for component wires. In Dubai you can buy the parts to start anything whatever your interests are, you just can't buy the parts you need to finish it.

There is a metaphore for The city as a whole in there somewhere.

Duane B

rcarduino.blogspot.com






LOL That's quite a sad motto actually.

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