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S-Dasher Friction-Board Churn: A Double-Curved Dasher Throwing Cream Over Grooved Boards
Woody

Criado por

Woody

6. outubro 2026NO
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S-Dasher Friction-Board Churn: A Double-Curved Dasher Throwing Cream Over Grooved Boards

The Walkers lined a square churn with grooved boards so the cream would be thrown against them "thus keeping up a constant friction on all sides." William Walker and Matthew C. Walker of Lancaster, Pennsylvania, received US 7,554, dated 6 August 1850, for a square water-tight box about fourteen inches each way holding about 40 quarts, half filled, with a "double curved or S shaped dasher" revolving in the centre by a crank and a thumb screw. Four grooved cross pieces run along each side of its curved ends; a friction board grooved underneath inclines across the top; a triangular board returns the cream onto it; a grooved friction piece sits in the lower right corner. This rung checks the box's capacity, then prints the S dasher, friction boards and corner piece, fits them in a box, and makes butter.
Intermediário
About 4 hours, plus printing

Instruções

1

Capacity

A carregar o notebook Jupyter…
2

A shaped dash in a box churn before it

The embedded blueprint twists its wings into a screw. The Walkers bend theirs into an S and add grooved boards round the box for friction.
3

Read US 7,554

"As the churn is put in operation, the cream is thrown against the grooves of the incline board E, dashed around and under it, and passed over and against the friction piece G, in the right hand corner of box, while the ends of the dasher H and wide cross piece N keep the cream continually dashing against the grooves of the incline board E thus keeping up a constant friction on all sides."
4

Print the parts

Print the S dasher with its four grooved cross pieces in one piece (/uploads/blueprints/s-dasher-friction-board-churn-s-dasher.stl), the grooved incline board (/uploads/blueprints/s-dasher-friction-board-churn-incline-board.stl), the grooved corner piece (/uploads/blueprints/s-dasher-friction-board-churn-corner-piece.stl) and the crank arm (/uploads/blueprints/s-dasher-friction-board-churn-crank-arm.stl). 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

Fit the box

Take a food-safe box about 180 mm each way. Glue the incline board across the top, sloping down to within 20 mm of the left side, grooves underneath, and a triangular plywood board on that side to turn the cream back onto it. Glue the corner piece in the lower right corner. Drill both ends on the centre for the dasher's shaft.

Materiais para este passo:

Recipiente de armazenamento de grau alimentarRecipiente de armazenamento de grau alimentar1 peça
Placa de contraplacadoPlaca de contraplacado1 peça
Vedante de siliconeVedante de silicone1 peça

Ferramentas necessárias:

Serra de recortesSerra de recortes
Berbequim sem fiosBerbequim sem fios
Jogo de brocasJogo de brocas
GramposGrampos
6

Dasher and crank

Pass a 10 mm square hardwood shaft through the box and the dasher, glue the crank arm and a dowel handle on one end, and hold the other with a thumb screw through a washer, as theirs. Cut an air hole in the lid.

Materiais para este passo:

Cavilhas de madeira duraCavilhas de madeira dura1 peça
Parafusos de máquinaParafusos de máquina1 peça
Anilha planaAnilha plana1 peça
Cola de madeiraCola de madeira1 peça

Ferramentas necessárias:

SerroteSerrote
Berbequim sem fiosBerbequim sem fios
Conjunto de chaves de fendasConjunto de chaves de fendas
7

The patent drawing

US 7,554 drawing sheet, public domain (expired patent).
Passo 7 - Image 1
8

Crank and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Fill the box half full, about 2.9 litres. Crank 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 bater2900 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

Dasher that strikes, cream that escapes

S-dasher friction-board troubleshooting.

Flow

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10

History and honest limits

**William Walker and Matthew C. Walker** of Lancaster, Pennsylvania, received US 7,554, dated 6 August 1850. Their box was of inch boards; a ledge at the top confined the lid, with a projecting strip on its underside to close it tight, and an aperture M let the air through. They claimed the double-curved S-shaped dasher with the grooved pieces. **Honest limits.** A food-safe box and printed parts stand in for their wooden churn, at about a third of its size. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

Materiais

11

Ferramentas necessárias

11

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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