You will need a spring, which I got from a kids Pez dispenser for its form factor. The balloon membrane or rubber glove is elastic so you may get away without the spring but it is nicer to have it. You also need some tape to seal the gap, and a straw. It is designed for standard straw diameter (which also works with the standard pipette tip) but I can upload others if there is demand, let me know.
Monday, September 9, 2013
Two independent water reservoir are present: the main is placed on the side of the building and composed by eight 200 liters barrels linked together, for collecting rain water. The second one is composed by three plastic "new jersey" street barriers, that can contain 80 - 100 liters each, placed under the shelf.
The circulating system is composed by two 12v pumps, powered by a hybrid power system, a vawt turbine in conjunction with two 10w pv panels.
Energy is stored in a 12v car battery via charge controller and a timer regulate the watering cycle (at this moment the set up is 1 min at 7 am and 1 minute at 7 pm.
Water is pumped from second reservoir to the top of the shelf, into a PVC pipe ( Dia 4 cm) where i drilled eighteen 3 mm holes (one for each planter of the first row). After moisten the first row, water go down to the rows below until go back to the starting tank.
With hand activated valve i can refill the second reservoir with rain water from blue barrels.
Ornithopter: (n) A machine designed to achieve flight by means of flapping wings.
This instruction will show you how to fashion an ornithopter that depicts the fight between an X-Wing and a TIE Fighter. As you see in the photo, the two spacecrafts are built into a single ornithopter. The X-Wing's change of wing shape contributes to the flapping of the wings, where as the TIE Fighter is used as a horizontal & vertical stabilizer.
I didn't mean to be so chatty with the instructions but I figured that would help some makers more than just a photo set with one liners. Click through the steps to find out how you can make your own! And don't forget to vote for this Instructables!
There is a glossary at the end, let me know if there is any other info you want me to add!Supplies
-lined white paper
-half round sterling silver wire 12g (2mm wide x 1mm thick)
-sand paper: 400, 600, 1000, etc
-liver of sulphur (optional, for awesome black oxidized ring)
-steel ring mandrel with ring sizes
-steel ring mandrel without sizes (optional)
-finger gauge (optional)
-jewelry saw and saw blade
-files (large flat and small round)
-plastic jawed pliers
-tumbler with steel shot (optional, otherwise more finer sandpaper and polishing cloth)
-steel block or ring stamping block