Windmills vs birds and moles. We have cottages, and in villages was a big crop of cherries. But flocks of starlings raiding is not yet ripe fruit. People saved them as best they could: hung on the branches of the banks, clung to the bottle, strengthened mounts and strips of polyethylene. I decided to scare away the birds hoisted on a cherry tree big windmill.
The choice of material for its production is caused by the fact that it turned out great, light and durable propeller. Once saw at the dump cans of paint on 2.5 kg, and I thought, perfect. As now written: “profit from Waste”. Manufacturer of propeller described in detail. Bank of thin sheets (Fig.1) cleared (burned at the stake) from the remnants of paint and paper labels. Inside the hole (cover) made the markings, dividing the upper part exactly on the eight sectors (Fig.2).
Then the markup continued on the side walls of the banks (Fig.Z). The snips cut Bank along the lines of markup to the bottom. Straightened cut petals and a little obstacle with a hammer to get the flat blank of the propeller (Fig.4).
When you flatten a billet junction of the side walls with the bottom two sides cut by a third line pairing (Fig.5). The remaining joint holds the folded petal of the propeller. For greater reliability propal this place.