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문화 및 역사
엔터테인먼트
환경
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역공학
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기술
웨어러블
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.
중급
About 4 hours, plus printing
안내
1
1
The orbit
The orbit
Jupyter 노트북 불러오는 중…
2
2
A churn that moves as a whole, with a grate inside, before it
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
3
Read US 9,218
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
4
Print the parts
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.
이 단계의 재료:
PETG 필라멘트1 개필요한 도구:
FDM 3D 프린터5
5
The rack
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.
이 단계의 재료:
스프링강 띠1 개
단단한 나무 목심1 개
#8 × 1인치 나무 나사1 개
20리터 양동이1 개필요한 도구:
손톱(핸드소)
무선 드릴
드라이버 세트6
6
Frames and crank
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.
이 단계의 재료:
소나무 판재1 개
연강 환봉1 개#8 × 1인치 나무 나사1 개단단한 나무 목심1 개필요한 도구:
손톱(핸드소)무선 드릴
드릴 비트 세트드라이버 세트7
7
The patent drawing
The patent drawing
US 9,218 drawing sheet, public domain (expired patent).
8
8
Orbit and make butter
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.
이 단계의 재료:
생크림3000 ml
굵은 천일염1 개
물1 개필요한 도구:
꽂아 두는 프로브 온도계
스톱워치
디지털 주방 저울
큰 스테인리스강 믹싱볼9
9
A rack that slips, a churn that turns
A rack that slips, a churn that turns
Orbiting churn troubleshooting.
Flow
Loading...
10
10
History and honest limits
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.
재료
10- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
- 3000 ml플레이스홀더
- 1 개플레이스홀더
- 1 개플레이스홀더
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