Even the person far from technicians, often have to Unscrew-screw the screws, bolts, nuts (hardware — so often referred to in abbreviated form these metal products) are designed for this tool — a wrench. Each key caused the size of its working parts, simply — throat. But the corresponding value is the size of the key — referred to in the technical handbooks by the letter S (the distance between the opposite parallel faces on a nut, bolt head or screw), is not listed on any of the fasteners. No, as a rule, these data and the attached to any technology operating instructions and repair even in the notation and in the drawings, although other information about fasteners in them abound: specify thread size, and her step sometimes the length and even the type of heat treatment, often tightening torque. But most of these data — structural, and they need to manufacture parts. When the adjustment, repair or Assembly work of the above settings thread, except the last one are not in demand. For a mechanic it is much more important to know what size front axle you need a key for the head of one or the other of the screw or bolt and nut (or, as professionals say, “the key is how much”).
Once his hands were wound transformer coils, he knows how difficult, unproductive and laborious this work. It is necessary not only to carefully, turn to turn, put the wire on the frame, but do it with the necessary — is the same for all coil — tension and not make a mistake when counting turns.
For bending metal rods and pipes there are many ways and devices. Most often this operation is performed on the bending. But not everyone (even of the workman person) he has. The easiest method is when one end of the workpiece is securely fixed in a suitable place (e.g. in a vise), and holding the other bend If bend the end of the short, he put on a corresponding segment of the pipe, using it as a grip and lever. But this method does not provide either the quality or the accuracy of the bend radius.
Dear editors! Send a description of simple tools that may be needed in the manufacture of furniture Think it will appeal to many I have it used successfully for years.
Pump chamber of a Bicycle wheel, for example after repair or tire, the operation is quite tedious because of the low performance of the supplied pump. Besides, there are pumps, hose attach at the end — then the job is also heavy. Because the pump has to keep on weight, creating pressure with one hand and the other opposing him, that is producing double the work.
You never tried to bend metal sections “area” or “channel”? If you had, then you probably know how hard it is, especially if the profile is lengthy. Simple drawing mill, made by me, allows you to run a variety of shaped metal profiles with a thickness up to one millimeter in almost any length. In the case are plastic and metals 3 steel grades and the stainless steel, aluminum alloys and brass.
In the manufacture of printed circuit boards have to drill a lot of holes. This is best done on a drill press. But many radio Amateurs it is? But it is not so difficult to do.
In the manufacture of personal watercraft, hidrocaribe and other small-tonnage vessels to protect the surface from moisture and make the case the mechanical strength is widely used fiberglass. However, faced with the complexity of the processing surfaces having a large area (an average of about 8 m2). In this rational use of mechanized tools (electric drill, grinding machine, type “Electra” etc.).
Heat the water to 50-60° can setting developed by the participants NTTM special design Bureau No. 1 of the Institute of power engineering Institute imeni G. M. Krzhizhanovskogo. Interestingly, there is no furnace or heaters. Replaces them… the sun. This setup is especially desirable in those areas of the country where local fuel is missing, and the cost of imported quite high.
Yes, on any lathe with a hollow spindle it is possible navit spring diameter up to 12 mm from the wire thickness of 0.1 to 2 mm. More than that — of any length. All this is provided by a simple device introduced by NTTM participants at the Leningrad order of the red banner of Labour plant of lifting and transportation equipment named after S. M. Kirov. Unlike similar devices, there’s a knot in the wire feeding thanks to the ingenious solution available for self-production in rural workshops.