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Orbiting Churn With Rod Rack: The Churn Circles Without Turning, Rods Break the Current
Karen

Creado por

Karen

6. octubre 2026SE
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Orbiting Churn With Rod Rack: The Churn Circles Without Turning, Rods Break the Current

Maxwell moved the whole churn, but not round its own axis. Rufus Maxwell of Lewis County, Virginia, received US 9,218, dated 24 August 1852, for a churn fastened in a frame hung by a hook and staple inside a supporting frame, with a crank connecting the two "so that the center of the bottom of the churn may revolve about a circle, (five or six inches in diameter)." This makes the milk flow round; a rack of parallel rods half an inch apart on a bow of "tough elastic wood" pressing against the sides breaks the current. He claimed forcing the milk through a rack "by revolving the churn in an orbit, without turning it on axis." This rung works out the bottom's speed, then prints the rod holders and orbit crank, builds the frame and rack, and makes butter.
Intermedio
About 4 hours, plus printing

Instrucciones

1

The orbit

Cargando el cuaderno de Jupyter…
2

A churn that moves as a whole, with a grate inside, before it

The embedded blueprint rocks a barrel through a grate. Maxwell circles his churn so the milk flows round through a rack of rods.
3

Read US 9,218

"This rack consists of a piece of tough elastic wood, bent as represented at Fig. 2, so that it will press against the sides of the churn, thus holding the rack in a stationary position, (with respect to the churn)."
4

Print the parts

Print four rod holders, the blocks n, and the orbit crank, whose pin is 70 mm off centre for a 5½ in circle. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Materiales para este paso:

Filamento PETGFilamento PETG1 pieza

Herramientas necesarias:

Impresora 3D de filamento (FDM)Impresora 3D de filamento (FDM)
5

Print the rod holder

The rod holder, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
6

Print the orbit crank

The orbit crank, printed as step 4 describes.
Archivo de DisenoSTLCC0 - Free
7

The rack

Bend a strip of thin steam-bent hardwood or spring steel into a U that springs against the inside of a tapered food-grade bucket. Screw the rod holders to its two legs and push 6 mm hardwood dowels through them, 12–13 mm apart as his, across the bucket.

Materiales para este paso:

Fleje de acero para muellesFleje de acero para muelles1 pieza
Espigas de madera duraEspigas de madera dura1 pieza
Tornillo para madera n.º 8 x 1"Tornillo para madera n.º 8 x 1"1 pieza
Cubo de 20 litrosCubo de 20 litros1 pieza

Herramientas necesarias:

SerruchoSerrucho
Taladro inalámbricoTaladro inalámbrico
Juego de destornilladoresJuego de destornilladores
8

Frames and crank

Fasten the bucket in a pine frame and hang that frame from a hook in a larger supporting frame. Mount the orbit crank on a post under the bucket so its pin sits in a socket at the centre of the bucket's bottom, and run the hanging frame's top up through a guide as the handle. Turning the crank carries the bottom round without turning the bucket.

Materiales para este paso:

Tabla de pinoTabla de pino1 pieza
Redondo de acero dulceRedondo de acero dulce1 pieza
Tornillo para madera n.º 8 x 1"Tornillo para madera n.º 8 x 1"1 pieza
Espigas de madera duraEspigas de madera dura1 pieza

Herramientas necesarias:

SerruchoSerrucho
Taladro inalámbricoTaladro inalámbrico
Juego de brocasJuego de brocas
Juego de destornilladoresJuego de destornilladores
9

The patent drawing

US 9,218 drawing sheet, public domain (expired patent).
Paso 9 - Image 1
10

Orbit and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 3 litres. Turn the crank so the bottom circles steadily; 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.

Materiales para este paso:

Crema de leche espesaCrema de leche espesa3000 ml
Sal marina gruesaSal marina gruesa1 pieza
AguaAgua1 pieza

Herramientas necesarias:

Termómetro de sonda permanenteTermómetro de sonda permanente
CronómetroCronómetro
Báscula digital de cocinaBáscula digital de cocina
Bol grande de acero inoxidableBol grande de acero inoxidable
11

A rack that slips, a churn that turns

Orbiting churn troubleshooting.

Flow

Loading...
12

History and honest limits

**Rufus Maxwell** of Lewis County, Virginia (the drawing reads Weston), received US 9,218, dated 24 August 1852. Four pins in the bow at n, n carry the rods, bored through them. He claimed forcing the milk through a rack by revolving the churn in an orbit without turning it on its axis, and the bow and rods connected together. **Honest limits.** A bucket, pine frames and printed parts 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.

Materiales

10

Herramientas requeridas

9

Archivos de diseño

2

CC0 Dominio público

Este Blueprint se publica bajo CC0. Eres libre de copiar, modificar, distribuir y usar este trabajo para cualquier propósito, sin pedir permiso.

Apoya al Maker comprando productos a través de su Blueprint, donde gana una Comisión del Maker establecida por los vendedores, o crea una nueva iteración de este Blueprint e inclúyela como conexión en tu propio Blueprint para compartir ingresos.

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