Cut two squares same size as your block then cut on the diagonal.
Or watch this video if you need more details. But it's easy peasy.
Jenny trims her block. You can just trim a little and it will float.
I was just making a trial block this a.m. using this method.
Give it a try and see if it works for you.
https://www.google.com/search?client...PatQa5n5mgBg21