There was a challenge at the HL2 world forums:
I accomplished this, as other people have also.
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Finally..after 4 hours i've finished my watermelon cutter. This one will get the watermelon into the bucket 100% of the time, I had to test it alot to get this possible. Here's pics, with a save.
The contraption before launch.
http://img30.exs.cx/img30/6908/buildingblocksfinal00000oz.jpg
Shoot the first barrel.
http://img72.exs.cx/img72/2523/buildingblocksfinal00011zg.jpg
Explodes and ignites the second barrel.
http://img72.exs.cx/img72/5483/buildingblocksfinal00026mh.jpg
When second barrel explodes it does 3 things:
Ignites 3rd barrel.
Breaks melon.
Breaks and sends piece of wood flying, hitting the basket, which the melon is in, causing it to roll out of basket.
http://img72.exs.cx/img72/7456/buildingblocksfinal00049gc.jpg
3rd barrel explodes, igniting 4th barrel.
http://img72.exs.cx/img72/3290/buildingblocksfinal00050xy.jpg
4th barrel explodes, activating the canister, which is tied to the big wooden thing. The big wooden thing is also holding the see-saw up.
http://img72.exs.cx/img72/9986/buildingblocksfinal00069so.jpg
Cannister happily flies away, with its new friend.
http://img72.exs.cx/img72/7991/buildingblocksfinal00071rg.jpg
Now that the mean big wooden thing is gone, the see-saw tilts, causing the broken water melon to fall into the box. Free watermelon for all the little monkeys.
http://img72.exs.cx/img72/7530/buildingblocksfinal00083mp.jpg
Link to Save: http://dl.downloadhosting.com/download/Slip778/half-life-053.zip
The challenge is to cut (or more accurately, break) a watermelon and deliver it into a box or any other container. Simple enough. The difficulty here is that you must accomplish this action through a Rube Goldberg device!
If you don't know what a Rube Goldberg device is, it's the step-by-step machines that accomplish easy tasks in complex and drawn-out ways. In addition to the example below, the board game Mousetrap IS a Rube Goldberg device (a diving man has to participate in order to snap a mousetrap?) and The Incredible Machine revolves around making such devices.
I accomplished this, as other people have also.
_______________________________________________________
Finally..after 4 hours i've finished my watermelon cutter. This one will get the watermelon into the bucket 100% of the time, I had to test it alot to get this possible. Here's pics, with a save.
The contraption before launch.
http://img30.exs.cx/img30/6908/buildingblocksfinal00000oz.jpg
Shoot the first barrel.
http://img72.exs.cx/img72/2523/buildingblocksfinal00011zg.jpg
Explodes and ignites the second barrel.
http://img72.exs.cx/img72/5483/buildingblocksfinal00026mh.jpg
When second barrel explodes it does 3 things:
Ignites 3rd barrel.
Breaks melon.
Breaks and sends piece of wood flying, hitting the basket, which the melon is in, causing it to roll out of basket.
http://img72.exs.cx/img72/7456/buildingblocksfinal00049gc.jpg
3rd barrel explodes, igniting 4th barrel.
http://img72.exs.cx/img72/3290/buildingblocksfinal00050xy.jpg
4th barrel explodes, activating the canister, which is tied to the big wooden thing. The big wooden thing is also holding the see-saw up.
http://img72.exs.cx/img72/9986/buildingblocksfinal00069so.jpg
Cannister happily flies away, with its new friend.
http://img72.exs.cx/img72/7991/buildingblocksfinal00071rg.jpg
Now that the mean big wooden thing is gone, the see-saw tilts, causing the broken water melon to fall into the box. Free watermelon for all the little monkeys.
http://img72.exs.cx/img72/7530/buildingblocksfinal00083mp.jpg
Link to Save: http://dl.downloadhosting.com/download/Slip778/half-life-053.zip