Step 1: Gathering Materials
1). Two 2qt tea bottles
3). Plastic tote (5"x11") found at any big box store
4). Sharp pair of scissors
5). Drill with a 1 1/2 diameter bit for cutting wood or pvc
6). Eye bolts (size is up to you)
7). Box cutter
8). 1/8 diameter drill bit
Please note, while you may in fact use any plastic bottle, the tea bottles listed are by far the most rigid I have come by, and for this particular set up I highly recommend using a very rigid bottle.
Step 2: Prepping the Bottles
After removing the label turn the bottle up and carefully cut away the top ring. Be careful not to cut yourself, make sure your hands, fingers, and loved ones are away from the blades trajectory path.
Step 3: Cutting
With our line drawn now we make a small incision into the bottle. With care gently push on your box cutter until it cuts into the bottle. Make sure your incision is large enough to insert your scissors through.
Insert your scissors into the incision and cut out the bottom of the bottle. If you're using the bottles I use in the picture cutting will take a bit longer due to the thick gauge of the plastic.
Once completed your bottles should look like the last picture.
Step 4: Measure Once Cut Twice...wait What?
Step 5: Pilot Holes
Now take your 1/8 bit and drill a hole through the center of you bottle cap.
Step 6: Elbow Grease and a Press Fit
Once through secure the bottle to the cap. Your end result should resemble the last picture.
Please note, if you're having a tough time fitting the bottle through the hole you can try a larger bit or heating the hole up slightly.
Step 7: Functionality
1). Watering automation can easily be added, the tote below acts as a reservoir collecting waste water, a small fountain pump fixed toward the bottom of the tote could recirculate water back to the plant. Swapping out soil for a soiless media and you could retrofit the system to a hydroponics system with relative ease.
2). In terms of functionality the tote below will allow you to recycle waste water and check nutrients/PH of your soil.
Step 8: Building Your Trellis
Take your eyebolts and screw them into the frame. If your house is block you will need anchors and a concrete bit. If your house is wood a drill bit will suffice to make your pillow hole.
With your eyebolts in place thread, wire or fishing line through the eyes. Keep a good tension on them as you tighten your line.
Now that the lines are tight and in place, you can introduce your tomato. The lines will help keep the tomato up from toppling over once it begins to fruit.
Step 9: Plant Some Tomatoes Already!
Now you might be tempted to go with a large tomato variety, larger tomatoes can be a pain to keep after. They tend to put on considerably more vegetation then cherry varieties. You have been warned!
If you've enjoyed this instructable, share it with your friends. Sustainable agriculture starts with you!
-Happy growing :)