Rationalization proposal Lyubertsy student of secondary school № 42 of Konstantin Shishkin. If you need to turn on a lathe a few identical parts rather complicated configuration, it makes sense to use a universal strap-holder which can be mounted a set of cutters. It is made very simply is a steel bar with a groove in which is invested cutters. In the holder they are fixed by bolt. To change the distance between the incisors allows a set of replacement crackers. The use of this device in a school workshop allowed us to reduce labor costs and increase accuracy of manufacturing of a number of parts.
Recommend to read
HANDY SCREED
In the manufacture or repair of furniture good help are special furniture clamps with the elongated bracket. However, if there are none in the economy, like any other. Long bracket...
A RAKE WITH WHEELS
An ordinary hand rake for harvesting hay is a tool the ancient and familiar to every villager. As a rule, all parts of this instrument from wood, that was easy, after all, to keep his...
