I got, on occasion, a small, very compact three-phase electric motor with horizontal mounting on the legs and two leads of the working shaft, the electric motor power is 90 watts and about three thousand revolutions per minute.
For operation of the electric motor from a single-phase network, a shifting (working) capacitor is required, its capacity is determined using. The electric motor was put on two wooden slats, in the formed niche, the electric part was installed
according to this scheme
Above, next to the electric motor, on the socket I installed a start button and a reverse switch.
From the time of distant youth, a portable dental drill with a burned-out electric motor lay motionless.
The sleeve with the tips and the connection unit to the motor shaft were removed from the drill.
The assembly was mounted on my electric motor.
and the purpose of this end of the shaft was predetermined,
but one more end of the motor shaft remained free.
Recently, I often needed a grinding wheel, and began to manufacture it. In my wooden disk
drilled a hole with a drill and put an interference fit on the free end of the motor shaft, with a sharp chisel
with the electric motor turned on
and caught
drive, having removed part of the wood from it - the engine did an excellent job. I pasted two on the disc - side tape
and on tape - a piece of sandpaper,
I removed the excess paper with ordinary scissors.
The grinding wheel is ready
with it you can sharpen a knife, a chisel, straighten a screwdriver, work on the edges crafts made of wood, plastic and metals.
Testing showed that the electric motor starts perfectly without a starting capacitor and works well in reverse mode. With a side-tipped drill, the holes in the boards for the radio components are drilled well
with direct tip
work comfortably with cutting, grinding wheels,
various burs
to engrave on many materials.For the grinding wheel it is necessary to make a working table, in the near future my “Baby” will get a working table, will rotate an emery stone and move the file of a homemade jigsaw. Articles will be posted on my favorite websitesign up and get to know the beautiful homemade on many topics.
