Lathe with manual drive. Drawing, description

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Lathe with manual drive. home workshop

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Fragrant shavings curl from under the cutter. And now, from a small workpiece, the contours of a rolling pin, pushers, handles of the day of a hand tool arise ... but you never know useful things can be done with a lathe at hand. But to make its simplest version, say, on the basis of a drill, but any home craftsman can do it, since almost all parts of the machine are made from an accessible and easily processed material: pine or birch bars.

The base of the machine is formed by two guides connected with a gap of 20 mm transverse bars.

Three vertical posts, reinforced on the base with screws, have landing trunnions for the necks of a hand drill fixed by pressing machines.

The tailstock is also made of a wooden block. It can be moved along the guides and clamped in the selected position by a long bolt, the head of which is fixedly fixed in the shoe located under the guides.

In the same way, on the longitudinal bars of the base between the tailstock and the drill mounts, the support plate for the cutters is mounted. The stop post is a thin-walled duralumin tube with a wooden rod inserted inside. A cut in its upper part and an annular clamp bent from a metal strip make it possible to fix the rod with a horizontal stop at the required height. The carrier plate having a longitudinal groove can also be displaced in a perpendicular direction.

The leading center, clamped in the drill chuck, is made of a stud with a wing nut screwed onto it. The pointed end of the stud serves as an axis around which the sharpened blades of the nut rotate the part.

The supporting center, also in the form of a pointed rod, is installed in the blind hole of the tailstock.

Section along the axis of the stop post (floor-mounted version of the machine) (click to enlarge)

A simple hand-operated lathe (click to enlarge): 1 - back rack clamp, 2 - rear rack, 3 - hand drill, 4 - middle rack clamp, 5 - middle rack. 6 - front strut clamp, 7 - front strut, 8 - leading center. 9 - supporting center, 10-bolt M8 with nut, 11 - tailstock. 12 - transverse bar of the base, 13 - rear guide. 14 - front guide, 15 - clamping bracket, 10 - carrier plate. 17 - clamping shoes, 18 - stop, 19 - clamp, 20 - stop rod, 21 - stand, 22 - M8 bolt with nut, 23 - M8 pin with nut. 24 - leg

For the floor version of the machine, four wooden legs are required, which are attached to the base with metal threaded pins, tightly planted in the blind holes of the legs, and four nuts fixedly fixed in the sockets of the transverse bars of the base.

As you can see, the design of the machine is simple and affordable. However, in the manufacture of its components and assembly, it is useful to adhere to the following recommendations. Check the surface of the parts with a square and thickness gauge. Finishing with sanding paper; remember to blunt sharp edges. Connection of all elements - on screws or nails. When installing the drill, make sure that its body lies snugly in the trunnions of the racks, and the axis of rotation of the chuck is parallel to the base guides. The tailstock should move without play. The alignment of the leading and supporting centers is ensured when making a hole for the center in the tailstock - by drilling on the machine itself: install a drill in the chuck and feed the tailstock along the guides.

It is more convenient to work on such a machine with an assistant who sets the part in rotation; the use of an electric drill will greatly expand its capabilities.

Author: V.Garshenin

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