Samvinna
LIST
FEGURÐ OG VELLÍÐAN
HANDVERK
MENNING OG SAGA
SKEMMTUN
UMHVERFI
MATUR OG DRYKKUR
ÖFUGVERKFRÆÐI
VÍSINDI
ÍÞRÓTTIR
TÆKNI
KLÆÐANLEG TÆKNI
Two-Frame Percussion Dasher Churn: The Upper Frame Strikes the Lower at Every Down Stroke
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7. október 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.
Miðlungs
About 4 hours, plus printing

Leiðbeiningar

1

The slack between the frames

Hleð Jupyter-vinnubók…
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, the lower frame and the key and wedge. Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

Efni fyrir þetta skref:

PETG-þráðurPETG-þráður1 stykki

Nauðsynleg verkfæri:

FDM-þrívíddarprentariFDM-þrívíddarprentari
5

Print the upper frame

The upper frame, printed as step 4 describes.
HönnunarskráSTLCC0 - Free
6

Print the lower frame

The lower frame, printed as step 4 describes.
HönnunarskráSTLCC0 - Free
7

Print the key and wedge

The key and wedge, printed as step 4 describes.
HönnunarskráSTLCC0 - Free
8

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.

Efni fyrir þetta skref:

HarðviðartapparHarðviðartappar1 stykki
TrélímTrélím1 stykki

Nauðsynleg verkfæri:

HandsögHandsög
HleðsluborHleðslubor
BorasettBorasett
9

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.

Efni fyrir þetta skref:

Geymslubox í matvælaflokkiGeymslubox í matvælaflokki1 stykki
FuruborðFuruborð1 stykki
Kringlótt stöng úr deigu stáliKringlótt stöng úr deigu stáli1 stykki
Tréskrúfa #8 x 1"Tréskrúfa #8 x 1"1 stykki

Nauðsynleg verkfæri:

HandsögHandsög
HleðsluborHleðslubor
SkrúfjárnasettSkrúfjárnasett
10

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.
HönnunarskráBLENDCC0 - Free
11

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.
Skref 11 - Image 1

Efni fyrir þetta skref:

RjómiRjómi2000 ml
Gróft sjávarsaltGróft sjávarsalt1 stykki
VatnVatn1 stykki

Nauðsynleg verkfæri:

Hitamælir með nema sem situr íHitamælir með nema sem situr í
SkeiðklukkaSkeiðklukka
Stafræn eldhúsvogStafræn eldhúsvog
Stór hrærskál úr ryðfríu stáliStór hrærskál úr ryðfríu stáli
12

Troubleshooting

Two-frame dasher troubleshooting.

Flow

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13

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.

Efni

10

Nauðsynleg verkfæri

9

Hönnunarskrár

4

Þessi teikning býr til

CC0 opinbert ríki

Þessi teikning er gefin út undir CC0. Þér er frjálst að afrita, breyta, dreifa og nota þetta verk í hvaða tilgangi sem er, án þess að biðja um leyfi.

Studdu smiðinn með því að kaupa vörur í gegnum teikningu hans þar sem hann fær þóknun smiða sem seljendur ákvarða, eða búðu til nýja endurskoðun á þessari teikningu og tengdu hana sem tengingu í þinni eigin teikningu til að deila tekjum.

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