Rakes Gables and Centres
This wall is
long , the angle is
°, so
It's
high and
long so
It's
high and
long so
It's
long and the angle is
degrees so
We need to go up a rake and mark cleats at centers that are plumb above
the ones below, that are level, but because we're on the rake, the centers need
to be further apart to be plumb. The points below are at
centers on the level and the angle is
degrees. so
Print me out the running measurements
up the rake starting at
mill (level)
 Print Running centers
We need to go up a rake and mark a
point thats directly plumb above a point below.
We cant plumb up because theres stuff in the way. The point below is
level in from the end, and the angle is
°. so
to the point directly plumb above the one below
We need to cut a block at an angle. The block's
wide or long and the angle is
° so
from one side to the other to make this angle
We need to lay these blocks up on an angle,
and the ends have to be cut plumb. The angle is
° and
the blocks are
high, so
that I need to cut the bottom shorter than the top, so as when I lay the end block
on the angle, the cut end is plumb
We have a gable with bond beams on top, and the angle is
degrees. The blocks are
high, the joints are 3/8" and theres
bond beam courses. So
down from the topdo we need to go to start
the stretcher cuts, so as when we lay the bond beams on top, they end up at the
right height
We know the pitch, so how do we work out the angle. Pitch is Rise in Length.
If its 5' long and rises 1', its a pitch of 1 in 5
We have a pitch (rise) of
in length of
so 1 in 1 = 45 °
Circles
We have a circle , and its radius is
from the outside to the middle
so
right
round the outside and
We have a part of a circle. Its radius is
mill, from the outside to the middle, but the circle only goes for
°, so
round the outside of the part of the circle and
of the part inside
We have a part of a circle.
We know where it starts and the radius is
, and the part of the circle goes for
°. We worked out how far round the outside, but we cant measure round
the outside properly to see where it ends. We pulled a tape from the middle to lay
the blocks, but we're not sure where to end. If we measure
straight accross from the start point to where it should end,
sort of like the string in a bow,
Angles
It's an angle, and its supposed to be
° deviation, so if we meausure up each side
from the point
the angle is it between the 2 points
to get this angle
This time we measured up each side of the angle
and its
accross between the 2 points , so
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Wonga Beach Q.L.D. Australia
Questions or Suggestions? ph: +61 7 40987645
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