DIY cement gun

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During construction work, it becomes necessary to fill joints and cavities on vertical surfaces. Throwing the right place with mortar from the spatula in an old and inefficient way, a cement gun is useful for such needs.

A homemade device works from a drill or a screwdriver. The feeding principle is based on the rotation of the worm shaft to which the solution flows by gravity from the tank. The worm shaft is made very simply: a wire is wound on a steel rod in a spiral.

The gun consists of a piece of polypropylene pipe inside which there is a worm, a container embedded in the middle of a plastic bottle and nozzle borrowed from a sealant tube.

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