Ladder Peg Toy 3000: Codename Overkill

I'm learning Fusion360 and had to decide on a first project. I used to have one of these tumble-down-the-ladder toys when I was a kid and had been thinking for a while to design one for the 3D printer so: behold the Ladder Peg Toy 3000 !!!

To start playing with the thing you just need to print these three files: ***LPT3K_peg, LPT3K_ladder*** and ***LPT3K_ladder_base***. For me layer resolution 0.2mm works well; if you use 0.3mm layers you may have to file or sand the inner part of the peg for