On a circular Pipa can not only dissolve a wooden Board in straight lines, but cut discs of any diameter from sheet material.
For this you need only do a simple device-a plywood plate, which is attached to the axis of the future drive. The axle is made of screw, a screw or even a nail of suitable diameter. How is “milled” disk – it is clear from the figure.
Recommend to read
TERMINAL SQUARE
Most automatic screw machines have trehkanatnoy the self-centering, which is easy to fix the workpiece cylindrical or hexagonal shape. And if it is of square section! In this case, a...
FOAM “PLASTERER”
Why not just have to face during the repair of the apartment. Perhaps the most trouble delivers incorporation of small shells in concrete structures: have a long "RUB" the putty into...