I made this using a bezier curve along with bevel object. I created control points at ever intersection and moved them forward or backward to weave the knot under or over. I just noticed I got it wrong on one spot. That’ll be easy enough to fix.
After this, I want to work on the border knots to frame the image and work on some more appropriate materials for this.
Hey, WingedOne,
That is a cool idea for a project - did you have in mind to convert to mesh after you are done, or leave it as a curve object? Only crit I would offer right now is to check your render resolution versus the default resolution - it looks like you could use a little more where it seems to get the polygon like edges. Nothing else to point out, other than this is really cool and should make for a nice picture when you are done.