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Channel-Ring Dasher Churn: A Hollow Column of Cream Traps Air at Every Stroke
Moses D. Wells of Morgantown, Virginia, received US 13,281, dated 17 July 1855, for a dasher of a central disk and a ring "separated by a passage or channel whose sides incline inward and upward, toward the dasher shaft." Each down stroke throws up a hollow column of cream that closes over air.
This rung prints the dasher and lever bracket, builds the churn and makes butter.
Beginner
About 3 hours, plus printing
Instructions
1
1
The channel
The channel
Loading Jupyter Notebook...
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2
An up-and-down dasher before it
An up-and-down dasher before it
Webber forces cream up between two cones; Wells forces it up a channel.
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3
Read US 13,281
Read US 13,281
"Its descent causes a rush of cream through the channel e, which current taking the direction of the sides of the channel, forms a continuous hollow column of cream, running upward toward the shaft c, where it meets and incloses the body of air which has been drawn down by the disk portion of the dasher."
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4
Print the parts
Print the parts
Print the dasher (/uploads/blueprints/channel-ring-dasher-churn-dasher.stl) and the lever bracket (/uploads/blueprints/channel-ring-dasher-churn-lever-bracket.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Materials for this step:
PETG Filament1 pieceTools needed:
FDM 3D Printer5
5
Churn and dasher
Churn and dasher
Use a straight-sided round food-grade container about 190 mm across inside. Glue a 10 mm square hardwood shaft into the dasher and pass it up through a hole in the lid.
Materials for this step:
Food-Grade Storage Container1 piece
Hardwood Dowels1 piece
Two-Part Epoxy1 pieceTools needed:
Hand Saw
Cordless Drill
Drill Bit Set6
6
The lever
The lever
Screw the bracket to the churn's side. Pin a pine link in it, pin a pine lever to the link's top, and pin the lever's short end to the shaft.
Materials for this step:
Pine Board1 piece
Mild Steel Rod1 piece
#8 x 1" Wood Screw1 pieceTools needed:
Hand SawCordless Drill
Screwdriver Set7
7
The build in 3D
The build in 3D
FreeCAD model of this build: the churn cut away to show the disk-and-ring dasher with its sloping channel, the shaft and the lever on its link and bracket.
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8
Churn
Churn
Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Work the lever so the dasher lifts clear of the cream each stroke; time until the butter comes. Pour off the buttermilk, add cold water, churn a little and pour off again until it runs clear; work in a pinch of salt and weigh the butter.
Materials for this step:
Heavy Cream2000 ml
Coarse Sea Salt1 piece
Water1 pieceTools needed:
Leave-In Probe Thermometer
Stopwatch
Digital Kitchen Scale
Stainless Steel Mixing Bowl (Large)9
9
Troubleshooting
Troubleshooting
Channel-ring dasher troubleshooting.
Flow
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10
History and honest limits
History and honest limits
**Moses D. Wells** of Morgantown, Monongalia County, Virginia, US 13,281, 17 July 1855. He claimed the dasher with an inclined continuous channel for the upward flow of a hollow column of cream. A container and printed parts stand in for his churn. FDM prints hold food in their layer lines, so wash well and replace when worn.
Materials
10- 1 piecePlaceholder
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- 2000 mlPlaceholder
- 1 piecePlaceholder
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Tools Required
9- Placeholder
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- 1 vendor sell this, none ship to you yetPlaceholder
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Design Files
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CC0 Public Domain
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