Bench drilling machines (such as NA-10, NA-12), as a rule, is at any station of young technicians in every school workshop. There are some in our school (I work as a teacher). And once a pupil of the 6th class when drilling holes in small parts dropped it in a vise. Began to turn them over to get the detail, didn’t hold, and the grip fell to the floor. Only by sheer luck that this incident was closed with a foot injury, although the consequences for the child could be much more serious. I think that such incidents are not uncommon: in school workshops and at the premises of technical circles often seen on the floor next to astelinastelin press dents from the clutches of the fallen.
THE GRIP ON THE LEASH
It would seem that there is nothing easier, than to hammer in a nail. This can make any boy, not to mention women. Why is it even the men but this seemingly simple operation sometimes does not go smoothly: the nail is hammered badly and suddenly bent; or the hammer blow falls not on the nail head, and a finger!
The furnace is designed for metals with suitable melting temperature in a volume of 10 cm3. It is an electrical transformer, the secondary winding ends of which are closed with a conductive vessel in which melting occurs. Oven can be used for artistic casting, in jewelry, for casting billets, alloys.
To design present a universal (I believe) bench is a necessary desktop DIY I came across several years of studying technical creativity. It was designed based on their needs. But I think about the same requirements to such equipment his Studio have most other home handymen. Workbench foldable and small in size. However, due to the original pressure of the knot on it to handle you can pin a fairly large parts and products, installing them in a vertical plane, and at multiple fixed angles.
In the conditions of a home workshop without special tools and fixtures can be performed, perhaps, only the so-called “collective” keyway: when impaled on the shaft gear or pulley is drilled by the drill joint hole centered on the circle stitching. Then in this hole is inserted a cylindrical key. But such a connection of the parts securely — no wonder because it is not in any Guest.
Today’s “unobtrusive service”, which have to apply for the small problems of household systems, effectively “bite”. Even the call an electrician, technician or plumber to diagnose, not to mention the simple elimination of minor faults, is quite expensive.
During the construction of the models is often necessary to apply a veneer of varying thickness. Typically the desired thickness is obtained by grinding with fungus with glued on end cloth, is inserted in the Chuck of the drilling machine. This method is most affordable, but it has several drawbacks: poor performance, inability to process veneer with thickness less than 0.5 mm, because of the rotation of the fungus veneer escapes from the hands and broken, and finally, the main drawback is the large air pollution wood dust. To handle more than three or four plates is not possible even a respirator.
Advantages of adhesive bonding are well known. So to advertise no need. Amateur masters have long been actively using the method of bonding parts in their designs.
In your journal in one of the rooms of yesteryear has published an article — “the plug”. I must say that the proposed options combined metal dowels rather complicated to manufacture, but their use is justified for hollow panels and panels of partitions, which in modern buildings are not too frequent. Novosel is usually found with the need to drill or punch holes in concrete, brick and rarely in gipsolitovye panels, and requires significant skills, experience and special tools. Besides produce during operation the noise causes discomfort to the neighbors.
To create a lathe-boring woodworking machine me prompted memories of school days when in the classroom I received the first skills of work on a lathe — lesson interesting and exciting. Since then, as they say, much water has flowed, but the desire to do of wood pieces of furniture with a beautiful chiseled details is preserved, but the necessary lathe I had. And I decided to do it, adapting to the bed of the other machine, consisting of a “circular saw” and electrofunk (see 