Section I – Part I

Overflow / Settling Tank
These two are really just the same big tank with a dividing wall between them. That will allow me to build it as one unit that can be moved as needed.
Overflow/Settling Tank Sills
There are six identical sills that support the Settling tank. In the illustration to the left they are high-lighted in red.

Note: This entire assembly is made up into two major sections – a smaller Overflow Tank and the larger Settling Tank. Essentially it is one large tank with a wall dividing it into two tanks. The sills then are common.

.. and here is the sill with all necessary dimensions. What we have here is a timber that’s notched .125″ (FS 6″) from either end. The notch is .042″ (FS 2″) deep and .250″ (FS 1 ft) wide. The timber is 3″ (FS 12 ft) long.

Note: The dimensions such as the .250″ notch is ‘nominal’. The actual width depends on the size of the vertical post. Stripwood may not be exact so check the size of the stripwood.

I have only had minimal introduction to kits with pre-cut stripwood but what I HAVE seen use butt joints. I’ll just have to make this up as I go along I guess.

Note to self: Some of the dimensions are critical only in that the same dimensin needs to be repeated exactly. For instance we have 2.250″ between the notches on the sills. The Settling Tank posts sit in these notches and are jointed by a Settling Tank Cap .. which will by necessity be that 2.250″ dimension. The point being that if it is 2.240″ .. or .. 2.260″ then the Lateral Braces that span the Settling Tank Caps will be whatever that number comes to. I think it would make sense to identify those pieces that have the same dimensions .. such as the Sills and Lateral Braces and mill them at one time.

In this cae the Settling Tank Sills and Settling Tank Lateral Braces are exactly the same and can be interchanged so it makes even more sense to cut/dap them at one time.

Tank Posts
The settling tank is formed from ten identical posts that are notch-jointed to the sills. These are all 1/4″ x 1/4″ x 2-15/16″ (1′ x 1′ x 11’9″ RS). The most rearward post is common to both the Settling Tank and the Overflow Tank.

In the illustration I call all of these Settling Tank Posts. I suppose since that last post is common to both the Settling and Overflow tanks that I could as easily call them Tank Posts (as I did in the header) – or – Overflow/Settling Tank posts .. but the drawing is already done .. so Settling Tank Posts they will remain. 🙂

The one thing that I need to make sure of here is that they are all the same length.

Tank Caps
Two timbers form the cap for the Settling Tank
Note that they are not 1/4″ sq (1 ft FS) timbers like the posts and sills but measure .250″ wide (1 ft FS) x .208″ tall (10″ FS).

They are dapped (notched) 0.042″ deep to receive the Settling Tank Posts.

These caps set the spacing of the tank posts. When these are notched a pair of additonal jigs need to be notched to hold the sills in the correct position for adding the walls later. Also note that the end of the cap fits into the Overflow Tank Post which itself also sits on a sill. It would make sense for the alignment jig to be long enough to also algin this sill.



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