How to make a jig to crosscut at an angle. First prototype

Sometimes we need to crosscut at an angle the end of a board. But if we can a homemade table saw with homemade lift it is usually imposible to tilt the table saw disc. So we'll see how to make a table saw jig to crosscut the end of the boards at 45 degrees.
How to improve this 45 degrees crosscut jig: • How to improve the jig...