Building an airplane includes a lot of little steps and very big steps. The big ones are easy to keep track of. Wings, engine, landing gear, etc. Those are hard to miss. However, all the small things could slip thought the cracks if you’re not organized.
So as I’ve gone along, I’ve made a list of things that need to done as I see/think about them. Drilling the gear axels was on that list, so today I drilled them for the big castle nut and cotter pins.