Notching Tubes at Steep Angles with No Tube Notcher

I’ve been following and enjoying Justin the Fabricator’s videos on tube fab basics/roll cage building. When it comes to notching tubes manually, I was struggling to get my cut angles correct on the first try for steep (not 90 degrees) intersections based on his instructions. After some trial and error I think I figured out a small clarification to go along with his method that seems to make my cuts come out much closer the first time. The effect is more pronounced the steeper the angles. We’ll call it, the Horizon Effect until somebody tells me it’s wrong, or it already has a name (you dummy).

The original video from Justin the Fabricator (   • TFS: How to Notch Tubes Without a Tub...  )