A KNIFE INSTEAD OF SCISSORS

A KNIFE INSTEAD OF SCISSORSIt took me home a few flat rings of cardboard. Cut with scissors for a long time. I have set a goal to make the device comfortable to simple.

 
In industry, these rings are made die-cut stamps. To make such a stamp at home difficult. I took a knife (folding, pocket, price of 22 kopecks), drilled in its hilt two holes of Ø 3 mm and attached circular foot as follows (the circular leg of the enterprise LSSM, price 42 kopecks). Circular leg pencil has a mount, whose top and bottom three petals. Central petals I bent back outwards by 90°, inserted them into the drilled holes of the handle of the knife and bent towards each other.
 
1 — screw legs, 2 — in circular foot, 3 — knife handle, 4 — petals feet, 5 — blade.
 
Using my devices, you can cut circles with diameters from 20 to 200 mm.

Recommend to read

  • TRICYCLE “GRASSHOPPER”TRICYCLE “GRASSHOPPER”
    The “Grasshopper” tricycle was designed and manufactured in the small-sized equipment design laboratory of the KYUT of the Novosibirsk academic campus by seventh-graders Anatoly Mikhailov,...
  • BUGGY – SPORTS CROSS CARBUGGY – SPORTS CROSS CAR
    The student design bureau of the Mari Polytechnic Institute named after A. M. Gorky is known not only in its native lands, but also far beyond the borders of the republic. Original...