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

Erstellt von

Karen

6. Oktober 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.
Fortgeschritten
About 4 hours, plus printing

Anweisungen

1

The orbit

Jupyter-Notebook wird geladen …
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.

Materialien für diesen Schritt:

PETG-FilamentPETG-Filament1 Stück

Benötigte Werkzeuge:

FDM-3D-DruckerFDM-3D-Drucker
5

Print the rod holder

The rod holder, printed as step 4 describes.
DesigndateiSTLCC0 - Free
6

Print the orbit crank

The orbit crank, printed as step 4 describes.
DesigndateiSTLCC0 - 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.

Materialien für diesen Schritt:

FederstahlbandFederstahlband1 Stück
HartholzdübelHartholzdübel1 Stück
Holzschraube #8 x 1"Holzschraube #8 x 1"1 Stück
20-Liter-Eimer20-Liter-Eimer1 Stück

Benötigte Werkzeuge:

HandsägeHandsäge
AkkubohrschrauberAkkubohrschrauber
Schraubendreher-SatzSchraubendreher-Satz
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.

Materialien für diesen Schritt:

KiefernbrettKiefernbrett1 Stück
Rundstahl (Baustahl)Rundstahl (Baustahl)1 Stück
Holzschraube #8 x 1"Holzschraube #8 x 1"1 Stück
HartholzdübelHartholzdübel1 Stück

Benötigte Werkzeuge:

HandsägeHandsäge
AkkubohrschrauberAkkubohrschrauber
BohrersatzBohrersatz
Schraubendreher-SatzSchraubendreher-Satz
9

The patent drawing

US 9,218 drawing sheet, public domain (expired patent).
Schritt 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.

Materialien für diesen Schritt:

SchlagsahneSchlagsahne3000 ml
Grobes MeersalzGrobes Meersalz1 Stück
WasserWasser1 Stück

Benötigte Werkzeuge:

Einsteck-FühlerthermometerEinsteck-Fühlerthermometer
StoppuhrStoppuhr
Digitale KüchenwaageDigitale Küchenwaage
Große Rührschüssel aus EdelstahlGroße Rührschüssel aus Edelstahl
11

A rack that slips, a churn that turns

Orbiting churn troubleshooting.

Flow

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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.

Materialien

10

Benötigte Werkzeuge

9

Designdateien

2

Dieser Bauplan stellt her

CC0 Gemeinfrei

Dieser Blueprint ist unter CC0 veröffentlicht. Sie dürfen dieses Werk für jeden Zweck frei kopieren, ändern, verbreiten und verwenden, ohne um Erlaubnis zu fragen.

Unterstützen Sie den Maker, indem Sie Produkte über seinen Blueprint kaufen, wo er eine Maker-Provision von Anbietern festgelegt, verdient. Oder erstellen Sie eine neue Iteration dieses Blueprints und verbinden Sie ihn in Ihrem eigenen Blueprint, um Einnahmen zu teilen.

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