I started off by looking at form of the tipping gutter. There is many factors that I need to account for that will directly influence what the form will look like.

Because the whole mechanism is based on weight and transfer of weight, the form is influenced by this.

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The deeper and larger the overhanging side of the flip lid the more rainwater and leaves it can hold meaning the more weight it will have. This side needs to be able to collect enough so that it becomes heavier then the gutter lid side (left) cause the whole thing to flip and force leaves to fall to the grown.

Another factor is the pattern on the gutter side. There will be a perforated pattern of holes that sit on the gutter, allowing rainwater to easily flow into the gutter and prevent leaves from entering as they will catch and sit on top of the perforated holes. But the larger the perforated holes the more water that can be let in and less will sit on top of the  lid consequently if the holes are too large then it will still allow smaller leaves to enter the gutter which is the opposite of what this while idea is trying to achieve. However the gutter lid side needs to remain light enough to flip. If the gutter side becomes heavier then the over hang it will not flip and the leaves will not be able to be removed.

The form is very important as it will help achieve both sides of the tipping gutter collect what they are both individually supposed to.

The surrounding factors

  • Roof over hang already covers a portion of the gutter. An allowance of this needs to be considered, if the flip lid lies flat on the gutter it will not fully flip as it will be stopped be the overhang of the roof. This may mean it is better for the lid to slid ob top of the roof.
  • Profile form – the form of the gutter will effect how the overall gutter system appearances. If the shape of it is too robust or obvious it may look ugly along the house. (The profile of the lid may need to be parallel to the roof to appear more subtle and linear).
  • Differences in roofs depending on houses. Angle between roof overhang and gutter varies as, shapes of roofs varies, 15º – 30º degrees for residential houses usually. (APPROX: 15º for newer houses, 20º for renovated older houses and 30º for original roofs of older houses)
  • Gutters usually sit 10-20mm from the roof, so there is not a lot of space and tolerance for movement in this area.

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