I just want to have a discussion about wire thicknesses. Not being really knowledgeable about this subject, i wanted to get some thoughts on it.
I was running about 8 servos and delivering power through spare servo wire from some AA batteries. The signal wires were taken from an old usb cable, it having some really thin wires inside it. All was well.
I added extra servos to my project to give 13 and the servo's seemed to loose power. I couldnt understand why. I replaced the main wire that came from the battery with a much thicker one, and this seemed ok.
My question therefor is, is a thick wire always better? What are pro's and cons. What if a thick wires was used for something like the signal wire or to deliver a low current @ 3.3v?