A hand holding the rib against a rising cylinder, wheel turning, slip curling off the trailing edge.
CT-104
Throwing Rib R60
The rib most throwers reach for first, and the one that decides whether a cylinder comes up straight or bellied.
The numbers
- Size
- 118 × 62 × 4.0 mm
- Also
- R60 convex face, R25 shoulder, 18 degree single-sided bevel
- Flex grades
- 1 ultra soft, 2 soft, 3 medium, 4 firm, 5 hard
- Material
- PA12 nylon, sintered
- Finish
- Vapour smoothed, satin
- Weight
- 26 g
- Made to your size
- face radius, 25 to 160 mm
- Ready in
- 4 to 6 days
Every number here is off the drawing rather than off a finished tool. Name the radius and the grade you want and the drawing comes back with your numbers on it.
A 60 mm convex face rides the wall, a 25 mm shoulder radius takes the turn into the base, and the single-sided bevel means it cuts on the way up and burnishes on the way down. Ask for it in any of the five grades and it becomes a different tool without changing shape.
Why it is shaped like that
A rib flatter than the pot only touches it in one place, so the wall thins where the rib bites and stays fat everywhere else. R60 is drawn to sit along a mug-sized cylinder rather than across it.
Living with it
- Rinse it while the slip is still wet and the edge stays glass-smooth for the next pot.
- Store the soft grades flat and they hold their curve for years.
- It is dishwasher-safe on the bottom shelf, and nothing about it minds being left in a bucket of water.
Made to order
Make one that fits your hand.
Send the code and the grade, or a photograph of the curve you want. A dimensioned drawing comes back the same working day, and nothing is printed until you say yes to it.
Request a tool
Tell us what you need. We will confirm the drawing, price and lead time with you.