Im trying to make a USB 3.0  cable that is straight for 5 inches, coiled for 10 revs @ 3/4 diameter and then 5ft of straight. Ive tried everything i possibly could and just cant seem to make it. The biggest challenge is making it change dynamically when the part that it connects to moves. Any help would be greatly appreciated. Im trying to make a print for it to send to cable manufactures for quotes. Im also trying to find exactly how many revs ill need.