After some thinking, I decided to build a huge auto-harvest farm. Anyway, after 10 hours over 3 days, I’ve finally finished. Here are some specs
– 71x71x11 (length x width x height)
– 4 kinds of plants – melon, pumpkin, wheat, and sugarcane
– 4 “divisions”, with 9 “sections” in each “division” except for the sugarcane division
– automatic harvesting of melons and pumpkins
the farm has a large output and one switch that can turn the pistons on and off.
The farm has extensive redstone wiring, with many places where a loop can occur and become inoperative, which took up a lot of time to fix.

if any bugs are found, please post a screenshot with a description and location of the error.

Here are some screenshots for your viewing pleasure :

Download can be found here

http://www.mediafire.com/?qp2pio8pi3r13we

if you want to use this farm, import it to your world using MCEdit (google it).
or, if you own a server (ahem, born &anin) you can use worldedit to import it.

Can you please import it to whocraft?
ill be donating soon, by the way.

Updates to the farm will probably come too.
(currently working on layering and stacking)

Thanks for Your Consideration,
danielxing

I don’t have the original file anymore, but the design has been improved upon by better, more compact designs, or at least it was the last time I was on the server. I built a test prototype in my plot somewhere. The farm (this one and the prototype) required manual collection, favoring compactness over automation.