It seems that I was right to make up those extender cables for SC110 after all, even though there were real piggies and I really had to try hard to get my tongue at just the angle. Had I not done that, it would have been even harder to find the fault as where the actual problem was right underneath the vertical board and hidden by a screening plate... ![Face Palm :palm:](https://www.eevblog.com/forum/Smileys/default/facepalm.gif)
https://www.amazon.com/Elegoo-EL-CP-004-Multicolored-Breadboard-arduino/dp/B01EV70C78/
Oh... and I guess right now is either the best possible time or the worst possible time to bring these to your attention... you know, seeing as I didn't think of it before you spent the money and grief making them yourself. ![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif)
mnem
*frustionated360*
![](https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/?action=dlattach;attach=1448008;image)
Nope, I saw those and thought about them and then discounted them because it only needed me to connect just one or two of those incorrectly, and it could be curtains for the scope. So made up proper leads with 5 and 6 pin blocks at each end to minimise the risks. What I really needed was 1x11pin lead, 1x6 pin and 2x5pin leads, the maximum no of ways the kit went to was 10. So I made up leads in the most common configurations I have come across, 6 and 5 pin versions.
Ummm.... okay. Old engineer trick... as in taught me by a old engineer at one of my hackspaces:
![](https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/?action=dlattach;attach=1448212;image)
You build the connector you need by plugging the individual pins in order into a length of pin or socket header, then put a dot of CA between the individual shrouds where the faces meet.
![](https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/?action=dlattach;attach=1448218;image)
Now, just pinch the outermost two shrouds towards each other and the CA sets as normal; capillary action pulls it evenly across almost all the convergent surfaces.
![](https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/?action=dlattach;attach=1448224;image)
Glue
only on the side opposite the retention fingers or the CA will get into the connector itself. This technique does require a steady hand and good glue control, or application with a toothpick.
![](https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/?action=dlattach;attach=1448230;image)
Alternately, once you have them laid out on the pin header, instead of CA you can wrap around
just the shrouds with Kapton tape, then trim off the excess on the ends with scissors. Regular old desktop Scotch tape or clear carton tape will even work in a pinch. This technique isn't as durable as the CA approach, but it does eliminate all possibility of glue contamination. It is also nice for applications where you just need something temporary and quick for a single job.
Either technique can be used to make headers of all sizes, in single and double-stack. I made a 2x12 just a little while ago with my QT-Py tinkery. Making more than double stack is doable, but you have to build in double-stacks first.
![](https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/?action=dlattach;attach=1448236;image)
Took me about 3 minutes to make this one, tho I did cheat a wee bit with CA accelerant, which is what made the blobbies.
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/wink.gif)
Of course now that you have the kit, you can always use the shrouds from that kit to turn these into custom header cables and save the assache of fighting with the crimps. If you buy large assortments, the already-made cables are as cheap or cheaper than you can buy the crimps and shrouds.
![Confused :-//](https://www.eevblog.com/forum/Smileys/default/confused0024.gif)
mnem
![Tweak :-/O](https://www.eevblog.com/forum/Smileys/default/smiliey_cal.gif)