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
JACK WILL HELP THE CARPENTER
Flooring will be much neater and better if, instead of the traditional wedges to use an ordinary car Jack. Under the support leg of the Jack placed bars of appropriate dimensions. ...
REFRESH… FLASHLIGHT
If the flashlight is to strengthen the tin bracket with a motor from a child's toy, the axis of which is planted miniature celluloid propeller, and connect the motor to the battery of a...
