ART
BEAUTÉ ET BIEN-ÊTRE
ARTISANAT
CULTURE ET HISTOIRE
DIVERTISSEMENT
ENVIRONNEMENT
NOURRITURE ET BOISSONS
INGÉNIERIE INVERSE
SCIENCES
SPORTS
TECHNOLOGIE
TECHNOLOGIE PORTABLE
Rotary-Dasher Box Churn: Float Boards on Crossed Arms in a Curved Box
An up-and-down dash churn is slow, tiring work.
Rufus Porter of Billerica, Massachusetts, received US 735, dated 10 May 1838, for a churn: a box eighteen inches long with a bottom curved from end to end; a wooden shaft running between a hollow cone and a pointed centre screw; two parallel pairs of rods through the shaft at right angles, carrying float boards parallel with the shaft — "what is termed the rotary dasher" — turned by a crank whose twisted tenon is pressed into the shaft and comes out when the occasion requires.
This rung compares his churn's sweep with a tabletop one, then prints the dasher, builds the box, and makes butter.
Intermédiaire
About 5 hours, plus printing
Consignes
1
1
Butter yield and sweep
Butter yield and sweep
Chargement du notebook Jupyter…
2
2
A board pushed through liquid before it
A board pushed through liquid before it
The embedded blueprint drives a boat with a flat paddle. Porter's float boards push through cream the same way, turning on a shaft.
3
3
Read US 735
Read US 735
"Four round bars or rods, sixteen inches long and one inch in diameter, pass through the shaft; two of these rods are parallel, and about five inches apart, each being one inch from one end of the shaft. The other two are parallel to each other, but at right angles with the first pair, and three inches apart; the four bars thus constituting eight arms."
4
4
Print the dasher
Print the dasher
Print the rotary dasher: core, two parallel pairs of arms at right angles, and four float boards (/uploads/blueprints/rotary-dasher-box-churn-dasher.stl). Print in PETG at 0.2 mm layers, 30 % infill, 4 walls; wash before first use.
Matériaux pour cette étape :
Filament PETG1 pièceOutils nécessaires :
Imprimante 3D à filament (FDM)5
5
Use a box with a curved bottom
Use a box with a curved bottom
Take a food-safe storage box about 150 × 100 mm and 150 mm deep. Drill both ends on the dasher's axis, 85 mm up. Bed a plywood strip curved from end to end in its floor with silicone, as his curved bottom.
Matériaux pour cette étape :
Bidon de stockage en PEHD1 pièce
Panneau de contreplaqué1 pièce
Mastic silicone1 pièceOutils nécessaires :
Scie à chantourner
Perceuse sans fil
Jeu de forets6
6
Cone, centre screw and crank
Cone, centre screw and crank
File an M5 screw to a point and run it through one end as the centre screw into the dasher's end hole. Through the other end pass a 5 mm rod into the dasher's seat as the hollow-cone bearing, bent outside into a crank.
Matériaux pour cette étape :
Vis à métaux1 pièce
Écrou hexagonal1 pièce
Rond en acier doux1 pièceOutils nécessaires :
Limes (lime à main)
Étau d'établi
Clé à molette7
7
The patent drawing
The patent drawing
US 735 drawing sheet, public domain (expired patent).
8
8
Make butter
Make butter
Let 500 ml of heavy cream stand until it reaches about 15 °C, checked with the thermometer. Pour it into the box, close the lid, and crank steadily; time until the butter comes. Pour off the buttermilk, add cold water, churn a few turns and pour off again until it runs clear; work in a pinch of salt and weigh the butter.
Matériaux pour cette étape :
Crème liquide entière500 ml
Gros sel marin1 pièce
Eau1 pièceOutils nécessaires :
Thermomètre à sonde à demeure
Chronomètre
Balance de cuisine numérique
Grand cul-de-poule en acier inoxydable9
9
A dasher that sticks, a box that leaks
A dasher that sticks, a box that leaks
Rotary-dasher box churn troubleshooting.
Flow
Loading...
10
10
History and honest limits
History and honest limits
**Rufus Porter** of Billerica, Massachusetts, received US 735, dated 10 May 1838. His box is eighteen inches long, ten wide and eighteen deep, of boards three-quarters of an inch thick; the bottom, three-eighths thick, is curved so its centre is three inches lower than its ends; a lid with ventilation apertures fits a rabbet; the float boards are eight inches long and three wide. He gave the dimensions of every part.
**Honest limits.** A storage box and a printed dasher at tabletop scale 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.
Matériaux
10- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
- 500 mlEspace réservé
- 1 pièceEspace réservé
- 1 pièceEspace réservé
Outils requis
11- Espace réservé
- Espace réservé
- 1 vendor sell this, none ship to you yetEspace réservé
- Espace réservé
- Espace réservé
- Espace réservé
- Espace réservé
- Espace réservé
- Espace réservé
- Espace réservé
- Espace réservé
Blueprints liés
Ces blueprints partagent des connaissances — techniques, matériaux ou principes
Churning Butter from Cream — The 5,000-Year-Old Fat Separation
par TheChef
ARTISANAT
47
0
0
0
0
0
Carving a Wooden Paddle from a Single Piece of Hardwood — Prehistoric Watercraft Propulsion
par Woody
Menuiserie
37
0
0
0
1
0
Making Aged Farmhouse Cheese in a Cheese Press — Medieval Dairy Craft
par TheChef
Nourriture
72
0
0
0
0
0
CC0 Domaine public
Ce blueprint est publié sous CC0. Vous êtes libre de copier, modifier, distribuer et utiliser ce travail pour tout usage, sans demander la permission.
Soutenez le Maker en achetant des produits via son Blueprint où il perçoit une Commission Maker définie par les Vendeurs, ou créez une nouvelle itération de ce Blueprint et incluez-le comme connexion dans votre propre Blueprint pour partager les revenus.