 I've been digging all day it's about four o'clock just enough time for a little project before dinner something I can improve on the zombie chopper here I'm going to mess with the pedal system one thing is the pedal propeller down here I'm going to take that off and then let's zoom in over here all right so here we've got the pedals and this big gear turns this smaller gear here and to keep it from skipping it's got this wheel over here now this wheel is rubber it's pretty hard rubber but it's still soft enough that it'll let this skip once in a while from pedaling pretty hard so I want to put something harder on here someone sent me something all right first thing I want to replace this rubber wheel with something more rigid like this piece of delrin someone sent me someone sent me two of these well the other one's a little bigger and I'm gonna use a piece of this to replace this rubber thing see you get the bearings out of it I wanted to do something pretty simple with this before I go committing a big chunk to something that may or may not work so I can get a bit of experience working with it first total listo all right now this guy right now the propeller blades bend more this way I'm gonna make it slowly bend that way as I found I get much better propulsion when they're bent that way and this way and it makes sense all right there's an old one here's what I just did oh that looks much better a much better technique on this after working on the second propeller it's not bad I say we give it a try go stick this stuff back on love enough sun for a quick test yeah just a quick test in the canal here okay I'm just doing a test acceleration has greatly improved I'm gonna have to get this out in the open water soon and skinny little channel here so I can pull it up without hitting the propeller why am I pulling it up on a tire it's like the hardest surface to move something