Bokakob 2" slanted plate (mini-still) column

[Pikluk]

Edited thread. Original thread here. The original thread deals with more details about this design, and running it.

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This is the way I built my Bokabob slanted plate still.

Head

1/4" OD copper tube
copper plate (used a piece of the 2" pipe cut open lengthways on one side, and hammered flat)
2" copper pipe
2" copper threaded adapter male
1/4" inline brass needle valve

Used this template for the cuts. The file name says 1.5" but it includes a 2" template too.

I didn't follow the 1/4" between plates, I gave it more like 3/4".

Made the cuts with one blade on the saw then used sand paper folded with sand on both side, made a nice tight fit. Took me about 5 min with #180 paper, easier to solder like this.

Column

2" copper pipe
2" threaded copper adapter female

Condenser

2" copper test cap (lot cheaper then a regular one, not soldered on)
2x 1/4" 90°brass compression fitting
1/4" copper tube
3/8" copper tube

Boiler Connection

2" copper end cap
8 x 6-32 stainless bolts/nuts
cardboard (no ink or gloss)

Didn't have the right tool so I made a bunch of little holes and finished with a Dremel.

The head is 13.5" high, total column is 63.5". The coil is only 7", and from the column top to the bottom plate is 10", so I could have made the head a bit shorter.

If you are building a still like this start with the coil so you know how much space you need for it.

The packing is structured copper mesh from Home Distilling.

There is a siphoning problem on the take off line when the output (in reflux mode) goes above 500 ml/h. See original thread for more details.

[Pikluk]

Some more stuff.

Used a piece of oak for a seal on the thermometer probe.

Used a 5 gal bucket handle bent into a coil with a hook, and a chain bolted to the ceiling to support the column. (The lid on the boiler is not very strong and will not hold the weight of the column on its own.)

[Pikluk]

Made a short column for stripping (low wines) runs and pot stilling, and a small Liebig condenser for the output line to cool the condensate.

2" copper pipe with 2" threaded female copper fitting for the column.

1/2" copper pipe
2' x 1/2" copper end caps
3/8" copper pipe
1/4" copper pipe

Drilled 1/4" hole in the end caps and 3/8" holes on the 1/2" pipe.
Was easy to make, took me like 15 min.

[Pikluk]

Learning to drive, I'm almost there.

At 300ml/h from ~50% low wine with only 32" of packing in the 52" column.