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Double-Motion Dasher Churn: One Crank Spins One Dasher and Plunges the Other
Emma

创建者

Emma

6. 十月 2026SE
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Double-Motion Dasher Churn: One Crank Spins One Dasher and Plunges the Other

Hall combined "a vertical reciprocating-dasher with a horizontal rotary-dasher so as to break and agitate the cream in two directions at once." Alexander Hall of Loydsville, Ohio, received US 6,777, dated 9 October 1849, for a churn with a vertical spindle carrying a rotary dasher at its foot, turned by a bevel pinion and wheel from a horizontal driving shaft on the lid; a crank on the inner end of that shaft works, through a rod, a reciprocating dasher on a tubular stem sliding on the spindle, so "the currents produced by either dasher are broken and distorted by the other." This rung works out the two motions, then prints a crown wheel and lantern, the two dashers, builds the drive on a box lid, and makes butter.
高级
About 5 hours, plus printing

说明

1

Two motions from one crank

正在加载 Jupyter 笔记本…
2

Rotary and vertical motion together before it

The embedded blueprint gives one dasher both motions through a spiral slot. Hall gives each motion its own dasher, from one crank.
3

Read US 6,777

"The cream or milk is placed in the tub and power being applied to the driving shaft (c) a rapid rotary motion is communicated through the wheels c d to the dasher b while at the same time the upper dasher h receives a vertical reciprocating motion through the crank k and rod i."
4

Print the parts

Print the crown wheel with its pegs and crank pin (/uploads/blueprints/double-motion-dasher-churn-crown-wheel.stl), the lantern pinion (/uploads/blueprints/double-motion-dasher-churn-lantern.stl), the rotary dasher (/uploads/blueprints/double-motion-dasher-churn-rotary-dasher.stl), the perforated reciprocating dasher with its sleeve (/uploads/blueprints/double-motion-dasher-churn-reciprocating-dasher.stl) and the crank arm (/uploads/blueprints/double-motion-dasher-churn-crank-arm.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.

此步骤所需材料:

PETG线材PETG线材1 个

所需工具:

FDM 3D 打印机FDM 3D 打印机
5

Spindle and dashers

Glue the rotary dasher on the foot of a 10 mm square hardwood spindle and stand it in a seat drilled in the centre of a food-safe box's floor. Slide a 16 mm tube over the spindle as the stem, glue the reciprocating dasher's sleeve on its lower end, and glue the lantern on the spindle's top above the lid.

此步骤所需材料:

食品级贮存容器食品级贮存容器1 个
硬木销钉硬木销钉1 个
PVC 管PVC 管1 个
木工胶木工胶1 个

所需工具:

充电式电钻充电式电钻
钻头套装钻头套装
钢锯钢锯
6

Drive on the lid

Screw two pine standards to a plywood half-lid and pass a 10 mm square driving shaft through them, with the crown wheel on its inner end meshing the lantern and the crank arm on its outer end. Join the crown wheel's crank pin to the stem's top with a pine rod on screws.

此步骤所需材料:

胶合板胶合板1 个
松木板松木板1 个
硬木销钉硬木销钉1 个
机螺钉机螺钉1 个
六角螺母六角螺母1 个
#8 × 1 英寸木螺钉#8 × 1 英寸木螺钉1 个

所需工具:

手锯手锯
充电式电钻充电式电钻
钻头套装钻头套装
螺丝刀套装螺丝刀套装
活动扳手活动扳手
7

The build in 3D

FreeCAD model of this build, not of the patent: the box cut away to show the rotary dasher at the spindle's foot and the perforated dasher on its sliding stem, and on the lid the crown wheel and lantern, the rod and the crank.
设计文件BLENDCC0 - Free
8

Crank and make butter

Let the heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour in 2 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.
步骤 8 - Image 1

此步骤所需材料:

鲜奶油鲜奶油2000 毫升
粗海盐粗海盐1 个
水水1 个

所需工具:

留置式探针温度计留置式探针温度计
秒表秒表
数字厨房秤数字厨房秤
大号不锈钢搅拌盆大号不锈钢搅拌盆
9

Gears that skip, a stem that binds

Double-motion dasher churn troubleshooting.

Flow

Loading...
10

History and honest limits

**Alexander Hall** of Loydsville, Belmont County, Ohio, received US 6,777, dated 9 October 1849, signed 7 August 1849. The spindle could be stepped in the bottom with a bearing in the top, or hung from the top alone; and by putting the pinion on the tubular stem instead, the upper dasher could revolve and the lower reciprocate. He claimed "the combination of a reciprocating dasher with a revolving dasher." **Honest limits.** A pegged crown wheel and lantern pinion stand in for his bevel wheels; a food-safe box and printed dashers for his tub and dashers. FDM prints hold food in their layer lines, so wash well and replace when worn. Your times and weights are the result.

材料

13

所需工具

11

设计文件

1

CC0 公共领域

此蓝图以 CC0 协议发布。你可以自由复制、修改、分发和使用此作品,无需征得许可。

通过购买蓝图中的产品支持创客,他们将获得 创客佣金 (由供应商设定),或创建此蓝图的新版本并将其作为连接包含在你自己的蓝图中以分享收入。

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