A blog run by DroidFreak, AKA Mark Dykstra. A mixture of all sorts of cool stuff, from Rubiks cube solutions to Lego robots.
Epic Lego Shotgun Sneak Peek
I recently had an idea for an awesome Lego gun, so I constructed a magazine for it. The magazine has 6 barrels that you load with 3 3-unit beams each, and each is held in the cocked position by a pin that stick trough the side of the magazine. The gun will be semi-automatic, each time you pull the trigger you pull out one of the pins, releasing one of the barrels and ejecting the pin from the side of the gun. This makes it shoot (because the barrel shoots the 3 bullets) and eject a "shell" at the same time, which will be pretty cool.
Semi-Automatic Lego Shotgun Sneak Peek
Update: I now have it in full operation, semi-auto. It's pretty sweet.