This is the way!
Slow spindle. I run mine at 12k RPMs. Usually the slowest or close to on a trim router, depends on which one you have.
That’s moving. I think I run mine at 25mm/s on my LR3. Can it go faster? Absolutely. Do I get a nice clean cut running like this? Absolutely
Full depth in a single pass (also why I run a little slower). That will clean your edges up a LOT.
5% is good at that thickness. for 1/4" (6.35mm) I run 7.5%. Your plate looks like its closer to 10mm so I would stay at the 5%
That’s awesome! The way you are doing it is the best way to learn. Just jump in and try it!
When you get to the LR4 Plates, my suggestion would be to drill all of your holes first, then screw down the plate through 2-3 of the holes where the M5 screws go to attach to the brace. Then run your outside cuts with no holding tabs. The screws will keep the plate from moving and give you a better finish. some 3D printed washers under some washer head screws (pocket screws) works well for me.
If you haven’t already check out this thread as well…