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2.03 TactiPad – Drawing Tools – The set square

The set square

The rectangular 45-degrees triangle has the same measure designation as the drawing board. The two short sides have a measure designation of 10 centimeters, while the long side has a measure designation of 14 centimeters. An indication on the middle of the long side makes it easy to draw a perpendicular.
There are four holes in the set square for fixing it over the knobs. The round hole in the 90 degree corner fits around a knob.
By putting one of the short sides of the triangle aligned with the edge of the frame, the set square creates two angles on the board, one of 90 and one of 45 degrees.

Met de korte zijde langs de rand van het bord vormt de driehoek hoeken van 45 en 90 graden

On one centimeter distance of the edge, in the middle of the long side of the set square, a round hole is made. To the left and right are two oblong holes. When putting the middle hole and one of the others over a knob, an angle of 30 or 60 degrees can be made by turning the set square to its extreme position.
By alligning the short side with the frame, the set square makes a 45 and 90 degrees angle