11: The sliding triangle is then turned to result in lines at 90°
from the initial lines. Here the sliding triangle is aligned with the
pencil mark for the right edge of the window opening.
11
onto the paper and cut the four sides of the glass without
first drawing the pencil line.
Once you have a pair of triangles in your tool collection, you’ll
find a lot of opportunities to use them. I have three 30/60 tri-
angles (a 4″, a 6″, and an 8″) and a single 6″ 45
o
triangle. The
cost of good acrylic triangles ranges from $2 to $3 each. They
are versatile and inexpensive tools. Drafting tools are available
from a number of online outlets. I purchased some of mine from
Drafting Steals
).
Disclaimer – I love good tools and don’t hesitate to invest in them.
