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

Criado por

Karen

6. outubro 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.
Intermediário
About 4 hours, plus printing

Instruções

1

The orbit

A carregar o notebook 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 (/uploads/blueprints/orbiting-churn-with-rod-rack-rod-holder.stl), the blocks n, and the orbit crank (/uploads/blueprints/orbiting-churn-with-rod-rack-orbit-crank.stl), 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.

Materiais para este passo:

Filamento PETGFilamento PETG1 peça

Ferramentas necessárias:

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

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.

Materiais para este passo:

Fita de aço-molaFita de aço-mola1 peça
Cavilhas de madeira duraCavilhas de madeira dura1 peça
Parafuso para madeira n.º 8 x 1"Parafuso para madeira n.º 8 x 1"1 peça
Balde de 20 litrosBalde de 20 litros1 peça

Ferramentas necessárias:

SerroteSerrote
Berbequim sem fiosBerbequim sem fios
Conjunto de chaves de fendasConjunto de chaves de fendas
6

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.

Materiais para este passo:

Tábua de pinhoTábua de pinho1 peça
Varão de aço macioVarão de aço macio1 peça
Parafuso para madeira n.º 8 x 1"Parafuso para madeira n.º 8 x 1"1 peça
Cavilhas de madeira duraCavilhas de madeira dura1 peça

Ferramentas necessárias:

SerroteSerrote
Berbequim sem fiosBerbequim sem fios
Jogo de brocasJogo de brocas
Conjunto de chaves de fendasConjunto de chaves de fendas
7

The patent drawing

US 9,218 drawing sheet, public domain (expired patent).
Passo 7 - Image 1
8

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.

Materiais para este passo:

Natas para baterNatas para bater3000 ml
Sal marinho grossoSal marinho grosso1 peça
ÁguaÁgua1 peça

Ferramentas necessárias:

Termómetro de sonda permanenteTermómetro de sonda permanente
CronómetroCronómetro
Balança digital de cozinhaBalança digital de cozinha
Taça grande de aço inoxidávelTaça grande de aço inoxidável
9

A rack that slips, a churn that turns

Orbiting churn troubleshooting.

Flow

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10

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.

Materiais

10

Ferramentas necessárias

9

CC0 Domínio Público

Este blueprint é liberado sob CC0. Você é livre para copiar, modificar, distribuir e usar este trabalho para qualquer finalidade, sem pedir permissão.

Apoie o Maker comprando produtos através do Blueprint, onde ele ganha uma Comissão Maker definida pelos vendedores, ou crie uma nova versão deste Blueprint e inclua-o como conexão no seu próprio Blueprint para compartilhar receita.

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