hello everyone, I created a BRACHIOGRAPH with a raspberry pi 3 and a three servo here is the documentation https://www.brachiograph.art/ and also here is the github link of the project https://github.com/evildmp /BrachioGraph.git , I noticed that it draws me every time a half circle, so I tried to test the GPIOs of the raspberry pi with the servos I distinguished that the GPIOs do not work except GPIO 14 it's the only one that works can you help me
That technique is featured in the video 
. It's a treasure throve of reliable prototyping - with a little flavouring with high frequency sauce
Very good video.
Also sometimes tape can be added to the mix, i.e. cut out some parts, and also use tape where it's convenient. Not as rugged though. More pricey too.. conductive adhesive versions of it are crazy expensive now compared to a few years ago (although a reel of the tape could last for years).
With cladboard, there is also the technique to cut round isolated pads with a broken drill or special tools.
Edit: This is also mentioned in the video that Jan Cumps linked earlier, so 'no news'.
