For her we need:
1) A piece of plastic pipe with a diameter of 40 mm.
2) 45 degree angle. 40 mm in diameter.
3) Plug for pipe with a diameter of 40 mm.
4) Adapter for pipe from 40 mm to 50 mm.
5) Electric motor (12V DC motor> 6000 rpm.)
6) switch.
7) Wire.
8) Battery screwdriver.
9) Blades for clerical knife.
10) Plastic bucket.
11) Crocodiles 2 pcs.
12) Soldering accessories, fasteners (screws, nuts), etc.
Manufacture:
1) First, fix the electric motor. On engine seats to a stub.
2) Mark the middle on the stub.
3) We measure the distance on the engine of two landing holes from each other. And transfer the labels to the cover.
4) Drill holes. Moreover, the hole in the center is first drilled with a small drill, and then expanded with a large one (see photo below).
5) We fix the engine to a pair of screws.
6) Then we solder the wires to the electric motor.
7) Then we collect everything in the case. Pulling the connected wires through the corner and the pipe. We connect everything so that it turns out, as it is shown in the photo below.
8) Mark the label for the hole for the switch.
9) We drill.
10) After that we connect the switch and insert it into the pre-made hole.
11) Then we take two crocodiles, which we connect to the output wires. This is necessary in order to easily and quickly connect and disconnect the battery of the screwdriver from the electric mower.
12) From the adapter 40 mm - 50 mm, an excellent holder for the battery from a screwdriver is obtained, which allows not to use additional fasteners.
13) We connect the battery and check the performance.
14) Now we will make the cutting part. To do this, we need the following elements (see photo below).
15) First of all, we fix the screw on the metal plate with the help of nuts.
16) Next, break off some part of the metal plate of the clerical knife blade as shown in the photo below.
17) After which we fix the clerical knife blade on a metal plate, while the blades must be movable. (See photo below).
18) Next, using the clamping clamp for wires, we connect the cutting part with the motor shaft.
19) Then we need an ordinary plastic bucket for the manufacture of a protective casing. Note in the center of the bucket a circle with a diameter equal to the diameter of the pipe.
20) Next, divide the bucket into two unequal parts, one part should be slightly larger than the other. We will need a smaller part.
21) We measure the height we need and transfer the marks to a plastic bucket.
22) In general, we do the markup as shown in the photo below.
23) Cut the smaller part.
24) It should turn out approximately, as in the photo.
25) Glue the blank from the bucket to our electric braid.
26) Done.
Test.
Conclusion.
In general, the electric scythe turned out, rather weak, but it will be enough for the lawn. This will be better than cutting it with scissors (if you do not have a mower). Homemade turns penny if you have a battery. It will also be possible to use a more powerful electric motor, for example, you can take a brushless motor from a 1/10 scale model RU.
Thank you for your attention. I hope the article was useful to you, you can also watch the video assembly of this homemade product.