Step 1: Materials for Prototype
Step 2: Steps 1-9: Preparing the Fabric
Step 3: Steps 10-18: 'Sewing' the Fabric
Then, take the nylon twine and begin to ‘sew’ through each hole until the entire circle is complete.
Use your hand to hold the base of the circle down while pulling the excess nylon to create a sac.
Step 4: Steps 19-25: Inserting Into the Subway Grate
Keep a hold of the nylon while pouring soil. Then, squeeze the small plant through, add more soil, and some water. Lastly, tie the nylon to the grate.
Make note that several changes have been incorporated into the procedure for making and inserting this prototype. See next set of images for details.
Step 5: Changes to Prototype Preparation and Insertion
1. The first change was to create a double fold of burlap around the outer edge by folding 1 inch in, then another. To keep this double fold in place, we used small amounts of glue. Once secured, we proceeded to use a single hole puncher to make holes for the nylon to go through, at 2 inch intervals.
2. We further realized that it might be useful to have a double lining at the base of the sac to retain water more efficiently. We cut small plastic circles and punctured holes to allow some water to permeate.
Securing the Burlap Sac: The initial prototype insertion revealed a setback in securing the prototype for adding the soil and small plant. Rather than allow the burlap sac to simply hang loosely and swing around underneath the grate while attempting to pour soil and insert the plant, we decided to use wire to create hooks that serve to temporarily raise the prototype along it’s nylon twine edge.