Electric Drill

Using an electric drill with a drill diameter of 3.5 mm drilled in identified points of the hole, perpendicular to the plane of the circle. For the motor screw angle bracket or band parallel to the plane of the circle. This bracket screwed into the existing economy hinges with a smooth and accurate way. The second wing hinge screws with a block cutter. Knot with the tool is a rigid structure, sawed-off from the corner (at least 45 of the first corner) with a width of 20 mm. By the basis of the block parallel to the shelf corner is attached lengthy M8h80 bolt nut that allows you to change the distance the tool from the beginning corner, that is set arbitrarily (within the circle) diameter disk cut. Diameter cut out discs regulated by the amount rectangular strips (size 30×20 with a hole diameter of 8.2 mm in the center), sawed-off from 2 mm iron sheet. Number of pads can reach up to 20 pieces.

Sam cutter can be made from an old knife planer, from saw blade, etc., but the thickness was not less than 2,5 mm. Height of the cutter – about 10 mm and a height depends on the distance between the shelf corners and parallel attached to her long bolt. Sharpen tool will have to manually grinding wheel so that the end is a triangle height of 5 mm, with angles of 95 and 60 degrees. Of the place can undermine the end of the cutter so that the edge of the disc was cut parallel to its axis. At the level of tool mark and drill holes in the bracket and site tool so that a homemade thumb screw passing through them, draw them closer to the surface of the cutter wheel. Then in the opening bracket threaded M6, and the node – hole diameter 6.5 mm. If it will hinder progress of a site tool, then drilled a hole the same diameter in the direction opposing the movement. Crank micrometer can be drawn from suitable handles, which can conveniently be great. Between the bracket and hub cutter pass a screw through a suitable diameter and stiffness of the spring and washer, check the smoothness of the tool at the site. The machine is ready, but to cut discs necessary to make several triangular pattern corresponding to the holes in concentric circles. Template-cut triangles with three holes, three screws are clamped on the wheel, turn engine and the rotating handle, cutter begins to cut a disc.

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