Ordering a custom cable assembly seems straightforward. You call a supplier, describe what you need, and a few days later the harness arrives at your facility. Until it doesn’t fit. Or fails. Or doesn’t meet the required standard. Or arrives in the wrong conductor size.<\/p>\n\n\n\n
The mistake is almost never in the manufacturing. It’s in the specification. And the specification is almost always written by someone who knows what they need, but doesn’t always know how to communicate it with the level of detail a cable manufacturer requires to get it right.<\/p>\n\n\n\n
This guide is designed exactly for that: so that the next time you order a custom harness, the information you provide is enough to receive exactly what you need.<\/p>\n\n\n\n
The most common mistake and the most expensive one. Without an electrical drawing or at least a structured signal list, the manufacturer works on assumptions. And assumptions are paid for in rework.<\/p>\n\n\n\n
An electrical drawing does not need to be perfect or in a specific format. KiCad, Altium, PDF, even a hand-drawn sketch with the right information are all valid. What matters is that it contains:<\/p>\n\n\n\n
Engineering note:<\/strong> At JM Cableados, when a customer does not have a drawing, we help them build the signal list from the functional specification of their equipment. It is an extra step that prevents a great deal of problems down the line.<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nMistake 2: Not specifying the custom cable assembly operating environment<\/h2>\n\n\n\nThe cable assembly does not work in a vacuum. It works inside a machine, on a factory floor, in a vehicle or in a medical device. The conditions of that environment determine every single material decision in the harness.<\/p>\n\n\n\n Before requesting a quote, be clear about and communicate:<\/p>\n\n\n\n
|