Hello,
I have, unfortunately, a requirement to model a Reef Knot (or Square Knot, as you might know it) again.
In the past, I have made a couple of wiggly curves orthogonal to each other and intersected them and run a VSS along them to create each half loop. A few mirrors and you have a passable looking knot. It takes a lot of tweaking and fiddling to get it looking presentable, though. Then there was the added complication that I was required to model a Slip-Reef Knot - one with a loop on one side that you could pull to undo the knot, a bit like a shoelace.
Is there an equation (or equations) to define such a knot? The nice thing about the equation approach would be that it took less work to make it look good and it would also scale nicely. That way, it would be done once and for all and I wouldn't have to repeat all the tweaking every time.
I'm sure someone out there has sorted this out.
Currently using WF4, M220, but I would imagine the principle applies equally well to any version. Bear in mind that I won't be able to open your solutions created in Creo 2.0, though...
Cheers,
John