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

Creato da

Karen

6. ottobre 2026SE
24
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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

Istruzioni

1

The orbit

Caricamento del 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.

Materiali per questo passaggio:

Filamento PETGFilamento PETG1 pezzo

Strumenti necessari:

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

Materiali per questo passaggio:

Nastro di acciaio armonicoNastro di acciaio armonico1 pezzo
Tasselli di legno duroTasselli di legno duro1 pezzo
Vite da legno #8 x 1"Vite da legno #8 x 1"1 pezzo
Secchio da 20 litriSecchio da 20 litri1 pezzo

Strumenti necessari:

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

Materiali per questo passaggio:

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
Tasselli di legno duroTasselli di legno duro1 pezzo

Strumenti necessari:

Sega a manoSega a mano
Trapano a batteriaTrapano a batteria
Serie di punte da trapanoSerie di punte da trapano
Set di cacciavitiSet di cacciaviti
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.

Materiali per questo passaggio:

Panna da montarePanna da montare3000 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

A rack that slips, a churn that turns

Orbiting churn troubleshooting.

Flow

Loading...
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.

Materiali

10

Strumenti richiesti

9

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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