Transflowera,

Nice handy planters to place on the sink or wherever your hart desires.
Here an instructable for how to make these foldable planters.
You will finally have something nice to place your plants, your basilicum, your koriander, you name it.
Easy to stack, Easy to use.
Make it, enjoy it!

Step 1: What Do We Need

first, first we start off by collecting everything we need to build the planters.

-wood: a piece 100 x 40 and a tickness of 12 mm will do.

-a thick stringer 100 mm long, 5 mm wide. I took one they use for sailing.

-a cheap umbrella (i'll explain later)

Step 2: Sawing the Wood in Proper Pieces.

we need

1 piece 276 x 100 mm
2 pieces 120 x 100 mm
3 pieces 132 x 100 mm

Make sure they are sawed correctly en straight.
Also, number the pieces you have so you won't have trouble puzzling them together.

Step 3: Putting the Pieces in Place and Drawing the Line of the String

Put the pieces in place to get an overview of the whole structure and placing of the wooden parts.
Instead of using hinges, we're using 2 strings to keep the whole thing together.
How?
By cutting a fine line same as the thickness from the string on the topside and the downside of the wooden panels, we create a place to put the string in so it won't go anywhere.

But first, choose the path of your string. draw this with a pen so you wont mistaken where to cut the wood.

Step 4: Cutting the Top and Downside.

Now cut the topside and downside of each panel. The stroke you cut has to be the same thickness as your string.
My string was 5 mm wide so my stroke is 5 mm wide and 6 mm deep.

Once cut the panels at each side, put them back together as they were and try to imagine how you would lay in the string.
You'll notice that there is Always a conflict with the side of the other pannel.
Thake a little handsaw and take the little piece of wood down that's standing in your way.

Step 5: Drilling Extra Holes and Make Some Spots Deeper (cutting Wise, See Previous Step)

Now, as you've made it so far, you can lay in the string and you'll notice that there will be 2 extra conflicts, 2 places where the string crosses itself. This is a problem because the groove we cut out is only 6 deep and the strings that cross each other need on that moment 12.
So, do what you have to do and make those places deeper.

One of those crossing spots is the ending and also the beginning of the string's its path.
Drill a hole in the side of one plane as the groove ends but just 5 mm under the groove.
Now, create sort of a slide so that you can guide your string through the hole . (test it before going to the next step)

Repeat this on the other side.

Step 6: Laying in the Stretcher

It's handy if you team up for this step. One can guide the stretcher in his place and one can see that the stretcher is constantly stretched. Also, use duck tape to tape over the edge you've already filled so the stretcher won't be able to escape.
Start with putting the string trough the hole we've drilled up to the slide and tie it with an eight-knot so it won't go anywhere.
Now lay the stretcher bit by bit into place while Always stretching it a little bit.
This creates the pressure orientated to the inside pushing our panels together and keeping its structure.
End by making a knot at the finish.

Do the same with the other side.

Step 7: Extra Layer

Now we have you stretcher into place, we cover up the top side and down side with thin plates 12 mm wide.
We glue these plates but be careful the glue doesn't touch the stretcher.
Like this, the stretcher will never come out of place.

Step 8: Making It Aquaproof

This is where the umbrella comes in. Take your cheap umbrella and remove the aquaproof clothing.
Cut out a piece that fits in the inside and use glue to attache the clothing to the different sides.
Only glue a distance of 70 mm each side. Like that, when we fold up our product, the clothing won't get harmed.