Have been messing around over the past couple weeks trying to understand the modifications people have been making for the steps and providing an access panel. I purchased the TCW step bushings and an extra and access plate (already had one left over from stall earning that I didn't install) to put in the baggage floor. I had read that people click the bolt 45 degrees to allow removal from the top. I had my neighbor 3D print a drill guide and he ever added a littl window to cleco to the original guide hole that would set the new hole at 45 degrees +/-. I've been trying to mockup the access hole to understand how it all will go together and honestly struggling figure out what to do.
Today I think I figured it out, but I also concluded that I don't need to clock the bolt 45 degrees. I believe I can orient the access panel to allow removal of the bolt straight up and I confirmed that I can reach my hand around the step with a wrench to get on the backside to hole the nut. I'm just going to use the original guide hole. I will go ahead and drill the pilot hole all the way down through the bottom skin just in case I ever need to get to the nut from the outside.
With that figured out, I proceed to mark and drill the holes in the black nylon step support block. When drilling it on the drill press, I didn't hold it tight enough to the table and the drill press picked up the piece, which then tilted in my hand and the bit just ate a big, slanted hole in the nylon. Trashed piece, ordered a new one. I drilled the other one and it came out fine.
Went to the storage unit to retrieve all the cover panels including the baggage floor panels and cleco'd them in place per the plans. Then fit up the step and support block to match drill into the baggage floor ribs. Drill doesn't fit. Ordered some #12 screw in bits for my 90 degree drill. Will continue this after Oshkosh.
I will still use my nice drill guide to final drill the holes and ensure straightness.
8/6: New piece arrived and drilled with no issues.