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A useful DIY tool quickly and from junk materials



In carpentry and plumbing, sometimes it becomes necessary to draw large circles. And if this does not happen so often, then buying compasses of a large radius (the price is measured in thousands of rubles) makes no sense.

This tool is capable of being made by a novice master and practically with minimal material costs. It is made of waste materials, and it takes about thirty to forty minutes to make.

Today we will show you how to make this useful tool in home conditions.
For the manufacture of a joiner's compass, we need the following tools: a drill, a circular saw, a detachable machine with a petal disk, a hacksaw, drills, a ruler, a tape measure and a screwdriver.

From materials: A small cut of plywood with a thickness of 15 mm or more (In the trial version, for lack of plywood 15 mm. Used chipboard, the option is not the most optimal, but the goal was to show manufacturing technology), a round rail with a diameter of 16 mm (Length is selected from the needs of the drawn radius, the leg length of the compass is one thousand millimeters, I repeat about the prototype, the length for a radius of 150 millimeters is made specifically for an objective understanding of the product, a compass with a leg of one thousand millimeters does not style would in frame with sufficient clarity and clarity), bolts and nuts lambs, pencil (which will be on hand can carpenter), to simplify the process of exhibiting a radius line. These are all materials, and you must admit that this tool will cost you nothing.

The procedure for the manufacture of joiner's compass for large diameters:






1. We cut the cylinder out of plywood with a circular saw.
2. We drill a cylinder under a rounded rail.
3. We make a cut of the cylinder, as shown in the video clip.
4. We process the rounded rail, as shown in the video clip.
5. We collect joiner's compass.
6. We use the tool.

Video clip of making a joiner's compass for drawing large circles:[b] [/ b]





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Guest Andrey
Why such difficulties, just take a nail, pencil and any thin rope. Next, drive a nail into the center of the future circle, tie one end of the rope to it and make a loop at the required length, insert a pencil into it and twist it .....

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