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Rotary-Dasher Box Churn: Float Boards on Crossed Arms in a Curved Box
An up-and-down dash churn is slow, tiring work.
Rufus Porter of Billerica, Massachusetts, received US 735, dated 10 May 1838, for a churn: a box eighteen inches long with a bottom curved from end to end; a wooden shaft running between a hollow cone and a pointed centre screw; two parallel pairs of rods through the shaft at right angles, carrying float boards parallel with the shaft — "what is termed the rotary dasher" — turned by a crank whose twisted tenon is pressed into the shaft and comes out when the occasion requires.
This rung compares his churn's sweep with a tabletop one, then prints the dasher, builds the box, and makes butter.
Katamtaman
About 5 hours, plus printing
Mga Tagubilin
1
1
Butter yield and sweep
Butter yield and sweep
Naglo-load ng Jupyter notebook…
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A board pushed through liquid before it
A board pushed through liquid before it
The embedded blueprint drives a boat with a flat paddle. Porter's float boards push through cream the same way, turning on a shaft.
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Read US 735
Read US 735
"Four round bars or rods, sixteen inches long and one inch in diameter, pass through the shaft; two of these rods are parallel, and about five inches apart, each being one inch from one end of the shaft. The other two are parallel to each other, but at right angles with the first pair, and three inches apart; the four bars thus constituting eight arms."
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Print the dasher
Print the dasher
Print the rotary dasher: core, two parallel pairs of arms at right angles, and four float boards (/uploads/blueprints/rotary-dasher-box-churn-dasher.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Mga materyales para sa hakbang na ito:
PETG filament1 pirasoMga kailangang kasangkapan:
Limbagang 3D na FDM5
5
Use a box with a curved bottom
Use a box with a curved bottom
Take a food-safe storage box about 150 × 100 mm and 150 mm deep. Drill both ends on the dasher's axis, 85 mm up. Bed a plywood strip curved from end to end in its floor with silicone, as his curved bottom.
Mga materyales para sa hakbang na ito:
Lalagyang HDPE1 piraso
Plantsa ng playwud1 piraso
Silicone Sealant1 pirasoMga kailangang kasangkapan:
Lagaring Pangkurba
Walang-Kableng Barena
Hanay ng Talim ng Barena6
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Cone, centre screw and crank
Cone, centre screw and crank
File an M5 screw to a point and run it through one end as the centre screw into the dasher's end hole. Through the other end pass a 5 mm rod into the dasher's seat as the hollow-cone bearing, bent outside into a crank.
Mga materyales para sa hakbang na ito:
Mga turnilyo ng makina1 piraso
Tuerkang Heksagonal1 piraso
Bilog na Bara ng Malambot na Asero1 pirasoMga kailangang kasangkapan:
Kikil (Kikil na Pangkamay)
Bais sa Mesang Panggawa
Llaveng ingles7
7
The patent drawing
The patent drawing
US 735 drawing sheet, public domain (expired patent).
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Make butter
Make butter
Let 500 ml of heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour it into the box, close the lid, and crank steadily; time until the butter comes. Pour off the buttermilk, add cold water, churn a few turns and pour off again until it runs clear; work in a pinch of salt and weigh the butter.
Mga materyales para sa hakbang na ito:
Makapal na krema500 ml
Magaspang na Asin sa Dagat1 piraso
Tubig1 pirasoMga kailangang kasangkapan:
Termometro na naiiwang nakatusok
Panukat ng Oras
Digital na Timbangang Pangkusina
Malaking mangkok na panghalo na asero na hindi kinakalawang9
9
A dasher that sticks, a box that leaks
A dasher that sticks, a box that leaks
Rotary-dasher box churn troubleshooting.
Flow
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10
History and honest limits
History and honest limits
**Rufus Porter** of Billerica, Massachusetts, received US 735, dated 10 May 1838. His box is eighteen inches long, ten wide and eighteen deep, of boards three-quarters of an inch thick; the bottom, three-eighths thick, is curved so its centre is three inches lower than its ends; a lid with ventilation apertures fits a rabbet; the float boards are eight inches long and three wide. He gave the dimensions of every part.
**Honest limits.** A storage box and a printed dasher at tabletop scale stand in for his. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.
Mga Materyales
10- 1 pirasoPlaceholder
- 1 pirasoPlaceholder
- 1 pirasoPlaceholder
- 1 pirasoPlaceholder
- 1 pirasoPlaceholder
- 1 pirasoPlaceholder
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- 500 mlPlaceholder
- 1 pirasoPlaceholder
- 1 pirasoPlaceholder
Mga Kinakailangang Kasangkapan
11- Placeholder
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- 1 vendor sell this, none ship to you yetPlaceholder
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Ang blueprint na ito ay gumagawa ng
Kaugnay na Blueprint
Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo
Churning Butter from Cream — The 5,000-Year-Old Fat Separation
ni TheChef
CRAFTS
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0
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Carving a Wooden Paddle from a Single Piece of Hardwood — Prehistoric Watercraft Propulsion
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Paggawa ng Kahoy
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Making Aged Farmhouse Cheese in a Cheese Press — Medieval Dairy Craft
ni TheChef
Pagkain
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CC0 Pampublikong Domain
Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.
Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.