I decided to start working on the Airlock to today. First I depressurized the whole ship, picked up my O2 bottle then start grinding. There's no room for trial and error here so I spent sometime draft the whole room out in paper. First I planned to make 2x2 L shaped airlock to save space as much as possible, but I ran out of interior plates midway through making the air vent. The whole ship is in complete vacuum at the time and I am wasting suit O2 so I weld together a makeshift plate wall to patch up the hole, pressurized the ship, took my helmet off and wait for the components to assemble. I didn't want to waste anymore time so while the assembly doing it's job, I sat on the cockpit, Inspect Ebikko exterior and did the math. After ten minutes I got the approximate number of each components required (added ten each to be safe). I depressurized the ship again and grind. I took me like half a hour but turned out the goshdarned L shaped can't hold the air in at all because I put a slope in the corner to cover the exposed reactor. Lost alot of air in the process but meh, It's a long term investment. Back to the drawing board.
After Consulting alot of engineering handbooks (guides) I decided that three blocks straight is the best and most efficient method. I put the vent in the ceiling and a set of buttons underneath in. The airlock chamber also dark as hell so I made it a T shaped airlock to put a light bulb in it. It looks great and still look pretty from the outside.
I also installed a Safety Door Mechanism. Every one minute, ever door and access shaft left open will automatically close it self to prevent any accident.