This was a project I did a couple of years ago at school. Who ever said coursework had to be boring!
What you need:
- Plywood board about 1.5 x 0.6 m (thickness can vary upon how much you're willing to spend.)
- Plastic sheeting larger than your board, 1.7 x 0.8 m minimum (heavy duty plastic sheet is best, can find at diy stores and garden centres)
- Leaf blower I found the cheapest place to look was eBay. You don't need anything fancy as long as it works! I picked up a 30cc Flymo for £30.
- Duct tape
- Plastic box lid / Long plastic ruler needed for the centre plate
- 90° pipe (this will vary depending on the style of your leaf-blower)
- Staple gun
Step 1: The Board
1. Cut your plywood board down to the correct size of about 1.5 x 0.6 m. The wider you make it the more stable it will be.
2. Round the edges of your board. This will stop the corners breaking through the plastic. I had mine at a radius of about 10 cm. This just made it easier to fold the plastic sheeting round.
3. Drill / cut out the hole for the plastic tube. The diameter of this hole will vary depending upon the size of the pipe from your blower. However, it does not matter if you make the hole slightly too large as you can increase the outside diameter of your tube by wrapping duct tap around it.
If you chose to get a thinner wood: This is no problem, but your board will probably need strengthening. The easiest way to do this is get two lengths of thicker wood (e.g. 2 x 4 x 70cm) and screw them on either side of the top face of your board, look at picture 3.