Cut the correct glass circle is not so simple. Usually on the sheet steklografom put the outline of future disk, and then not spend a dozen tangents. The resulting polyhedron is brought to the circle by a fine-grained whetstone. It is much easier to make this work with a homemade tool. Its basis is the caliper. The inner leg is clipped and hard solder attach pad. After Stripping through her and the leg is drilled through hole. In the resulting plug is inserted carbide roller from a standard glass cutter. As the axis is used, the bolt of suitable diameter. On the anchor leg of the caliper push the plastic mold. And the last thing you need to do is the metal disc Ø 30 mm with naturalnym in its center a recess with a glued to it with rubber gasket.STANGENSELLERIE
Cut the correct glass circle is not so simple. Usually on the sheet steklografom put the outline of future disk, and then not spend a dozen tangents. The resulting polyhedron is brought to the circle by a fine-grained whetstone. It is much easier to make this work with a homemade tool. Its basis is the caliper. The inner leg is clipped and hard solder attach pad. After Stripping through her and the leg is drilled through hole. In the resulting plug is inserted carbide roller from a standard glass cutter. As the axis is used, the bolt of suitable diameter. On the anchor leg of the caliper push the plastic mold. And the last thing you need to do is the metal disc Ø 30 mm with naturalnym in its center a recess with a glued to it with rubber gasket.

The second of may 1952 from London Heathrow airport and went to the first commercial flight to Johannesburg, the world’s first passenger jet airliner “Comet” created by the British firm “De Hevilend”. Subsequent accidents and disasters that accompanied its operation, did not stop the desire of the world’s leading aviation powers to progress and the creation of new reactive machines.
One of the most critical components of the machines crawler — tanks, all-terrain vehicles, armored personnel carriers, tractors, trucks is the suspension, particularly caterpillars. Their tapes, as you know, is assembled from separate parts — the tracks connected by fingers. Each track has a grooved surface — lugs deliver reliable traction. On the side of the track facing the rollers, is guide comb, preventing a descent of rollers with treadmill tracks the motion of the model, especially during turns.
The principle of operation of this device for cutting, or rather, cutting out of teeth on the blades for the hacksaw is simple. Its main part is a wheel with a cage, fortified it with four screws. On the surface of the cage is cut two or three strands of outer thread with a pitch, height and profile of the future teeth of a saw. Extreme thread thread partly removed with a cutter, or a chisel and chopped off the right angle: the end will perform the role of a punch. To increase the impact force to the flywheel attached two opposed.


We offer proven our ship mug method: to make propellers with electric current from foam. Simple device allows you to quickly produce a series of identical screws, which in appearance is no different from bronze, but do not sink in water.

Battles in Normandy in summer 1944 was discouraged by the command of tank units of the allies, including the us. The fact that it is hoped for their means of combating tanks of the Wehrmacht: anti-tank guns, self-propelled artillery installations, including on the American M10. M10 Gun Motor Carriage is self-propelled artillery, which had the informal name of Wolverine (“Wolverine” – “Wolverine”), was the most numerous tank destroyer in U.S. army during world war II. She belonged to the class of fighters and tanks had to destroy on the battlefield armored vehicles, while their own tanks was to support infantry in battle – such was the doctrine of military command of the U.S. army.
In the journal “modelist-Konstruktor” No. 4 for 2008 have already been published, one of my small bench drill press. Now offers readers a different, in my opinion, a more versatile and interesting design. Meanwhile, this upright drilling machines single-spindle work hard also not hard to make yourself, having practical skills in machining metal parts and metal build, and some of the most complex parts can be ordered as a master-technician.