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Discussion and questions related to the course Practical Motorsport Wiring - Club Level
Hi. I was wondering if someone could tell me a method to twist more than 3 wires, like 10 or more.
I'm going to assume you don't mean a concentric twist loom, instead you are asking about what I call "roping".
I have two methods, depending on how many cables I want to lay up together. For anything less than 6 (or so, depends on the gauge) I'll anchor one end of the loom in my plastic jaw bench vise, clamp the other end in my cordless drill, then put steady tension along the length of the loom and spin the drill SLOWLY. Let the twisting action keep the loom tension fairly constant. You'll need to "overtwist" a little more than you want, because it will untwist a little when you release the drill chuck.
My other method, for more cables, is this. I have a 9" length of 2" wide 1/4" thick timber (it's actually a piece of skirting board). I then took a 3mm drill bit, and drilled a sequence of holes in a spiral pattern. Once again with one end of the loom anchored in the vice I then feed each cable through a hole, allowing about 3" to poke out from the timber. When you've fed all the cables through the timber, hold the short ends and pull the tension up on the loom. Then manually twist the cables together. Again, overtwist a little.
I hope my long winded explanation was clear enough :-)