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
THE COVER ON THE CHAIR
The problem is small but not invented, and most importantly - serious. The negative influence of draughts on human health obviously, and there was low back pain, and sciatica, and...
Milling cutter instead of a plow
The tiller developed by Heinrich Alekseevich Kuznetsov differs from many homemade designs by using cutters instead of a plow. Rotating on the working shaft, they simultaneously till the...
