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Two-Frame Percussion Dasher Churn: The Upper Frame Strikes the Lower at Every Down Stroke
Spindle

Creato da

Spindle

7. ottobre 2026SE
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Two-Frame Percussion Dasher Churn: The Upper Frame Strikes the Lower at Every Down Stroke

W. H. Burnham and B. Hibbard of Cortland, New York, received US 15,412, dated 29 July 1856, for a dasher of two slatted frames loosely joined: at each down stroke the lower frame meets the bottom and the upper frame is "driven violently in the contact with the lower frame," forcing the cream up between the bars in thin sheets. This rung prints the two frames, key and wedge, builds the churn and lever, and makes butter.
Intermedio
About 4 hours, plus printing

Istruzioni

1

The slack between the frames

Caricamento del notebook Jupyter…
2

Slats that close on the cream before it

Clement folds a slatted box; Burnham and Hibbard strike one frame on another.
3

Read US 15,412

"Then when the dasher is forced downward, the lower frame of the dasher will be first arrested by the bottom of the box, which will cause the upper frame of the dasher to be driven violently in the contact with the lower frame thereof and by so doing, will cause the cream which is carried down before it, to be driven with percussive force into the spaces between the bars of the lower frame and thence up in thin sheets."
4

Print the parts

Print the upper frame (/uploads/blueprints/two-frame-percussion-dasher-churn-upper-frame.stl), the lower frame (/uploads/blueprints/two-frame-percussion-dasher-churn-lower-frame.stl) and the key and wedge (/uploads/blueprints/two-frame-percussion-dasher-churn-key-and-wedge.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Materiali per questo passaggio:

Filamento PETGFilamento PETG1 pezzo

Strumenti necessari:

Stampante 3D a filamento (FDM)Stampante 3D a filamento (FDM)
5

The dasher

Glue a 12 mm square hardwood handle into the lower frame and two 6 × 12 mm laths into the upper frame's sockets. Cut a slot 40 mm long down both laths. Set the handle between the laths and push the key through a hole in the handle and through the slots.

Materiali per questo passaggio:

Tasselli di legno duroTasselli di legno duro1 pezzo
Colla da legnoColla da legno1 pezzo

Strumenti necessari:

Sega a manoSega a mano
Trapano a batteriaTrapano a batteria
Serie di punte da trapanoSerie di punte da trapano
6

Box and lever

Use a rectangular food-grade container about 210 by 150 mm on a pine platform. Hinge a pine upright at one end of the platform and pin a pine lever to its top; pin the two laths to the lever above the box.

Materiali per questo passaggio:

Contenitore di conservazione per uso alimentareContenitore di conservazione per uso alimentare1 pezzo
Tavola di pinoTavola di pino1 pezzo
Tondo di acciaio dolceTondo di acciaio dolce1 pezzo
Vite da legno #8 x 1"Vite da legno #8 x 1"1 pezzo

Strumenti necessari:

Sega a manoSega a mano
Trapano a batteriaTrapano a batteria
Set di cacciavitiSet di cacciaviti
7

The build in 3D

FreeCAD model of this build: the box cut away to show the two slatted frames, the double handles and key, and the lever on its oscillating upright.
File di designBLENDCC0 - Free
8

Churn, then gather

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 litres. Work the lever steadily; time until the butter comes. Push the wedge into the slots above the handle to hold the frames apart, and work on slowly to gather the butter. 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.
Passo 8 - Image 1

Materiali per questo passaggio:

Panna da montarePanna da montare2000 ml
Sale marino grossoSale marino grosso1 pezzo
AcquaAcqua1 pezzo

Strumenti necessari:

Termometro a sonda permanenteTermometro a sonda permanente
CronometroCronometro
Bilancia digitale da cucinaBilancia digitale da cucina
Grande ciotola da impasto in acciaio inossidabileGrande ciotola da impasto in acciaio inossidabile
9

Troubleshooting

Two-frame dasher troubleshooting.

Flow

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10

History and honest limits

**W. H. Burnham and B. Hibbard** of Cortland village, Cortland County, New York, US 15,412, 29 July 1856, signed 5 June 1856; the drawing reads "Reciprocating Churn." They claimed the dasher of two independent frames combined with each other and the lever. A container, pine and printed parts stand in for theirs. FDM prints hold food in their layer lines, so wash well and replace when worn.

Materiali

10

Strumenti richiesti

9

File di progetto

1

Questo progetto realizza

CC0 Pubblico dominio

Questo progetto è rilasciato sotto CC0. Sei libero di copiare, modificare, distribuire e utilizzare quest'opera per qualsiasi scopo, senza chiedere permesso.

Supporta il Maker acquistando prodotti tramite il suo progetto dove guadagna una Commissione Maker stabilita dai venditori, oppure crea una nuova iterazione di questo progetto e includilo come collegamento nel tuo progetto per condividere i ricavi.

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