08:30, the first board
Three points that are not in a line lie on exactly one circle: Euclid, Book IV, Proposition 5. Three jaws at 120°, closing together, therefore agree on one centre, and a stick of any width is held on the holder’s axis: the principle of the lathe chuck. Two jaws would let it slip sideways; four have to be set one by one.
Objects · Solid brass chalk holder
Three Jaws
CHF 58 working price
For the hand that fills four boards a day: clean fingers, and the stick used to its last centimetre.
A solid brass holder for the chalk in the box. Three jaws close on the stick and centre it, whatever is left of it. It stands in the jackets’ chalk slot, where the two sticks would go.
A study: nothing can be ordered yet. The photograph is a generated image, not a picture of a made piece or of a real person.
- Solid brass, turned and left raw: it darkens with use and stays bright where it is held; 120 mm long, 64 g
- Eight-sided barrel, 14 mm across: it does not roll off a ledge
- Three-jaw collet for the 11 mm sticks of Twelve and One, closed by a knurled nut; it holds a stick down to its last centimetre. A spare collet in the box
- Numbered on the end and marked nowhere else. Nothing on it is red: it is red when the chalk is
- Cut for: Twelve and One
