Twoleftears, what you describe will work just fine. You can experiment with the height off the floor to see if there is a better height, but lifting the cables 6" or more should work well (4" may also work fine, but going taller might make the difference).
Any paper or wood material should work well. I use corrugated cardboard in a crossing "+" arrangement (as seen from the top). Avoid plastics (which can store energy).
Good luck with your experiments. It's certainly inexpensive enough to try.
Any paper or wood material should work well. I use corrugated cardboard in a crossing "+" arrangement (as seen from the top). Avoid plastics (which can store energy).
Good luck with your experiments. It's certainly inexpensive enough to try.