DIY LASER BED BUILD - Under $30 From Steel With Highly Accurate Grid Overlay for Light Burn

DIY STEEL BED BUILD PART 1 - $30 Build for 400m x 810mm but I can spread the gap to make 850mm. When I originally purchased my OLM 3 a couple of months ago I bought the aluminum bed along with it. But shortly after I figured out I should of bought a steel bed be be able to use the magnets. But I did not read the fine print as the TWO TREES bed said 400mm x 400mm but the cutting area really is 360mm x 360mm which I made another mistake! The bed worked fine as my templates all fit on it..
But when I got my Extension kits a couple of weeks ago I had to redesign my workspace and make some improvements.. Which I figured out a way to still use both my steel bed and aluminum bed worked good after making the wood holding pins..
But the issue I will have is that the beds are different heights so that will be an issue when ENGRAVING or CUTTING larger projects. There is some ways I could raise one of them to work but I saw someone mention about the metal peg board. I found it and Home Depot and it cost $11 bucks.
So I decided to make DIY STEEL BED that would be uniform and integrate into my workspace and it seems to have worked out great. I am just finishing it up the build but it actually works really. There will be a part 2 which shows the grid overlay in Lighburn that matches the grid holds on the bed.
Again this is just idea or experiment that I just went with as no plans in advance. Just make do with what I got in the garage.. Any input appreciated.. Keep on Burning!