centering clay on the wheel

Centering is pressing a spinning lump of clay into perfect axial symmetry, so that it stands still in your hands while rotating at speed. Until you can do it, every pot you attempt will wobble itself apart. There is no way around this skill, no shortcut through it, and no potter alive who found it easy. Plan for weeks. It is the best-spent frustration in the craft.

the setup does most of the work

• Slam the wedged lump as close to the wheel head's centre as you can and pat it down firmly so it grips.
• Sit close. The wheel head should be almost under your sternum, not out at arm's length.
• Brace your left elbow against your hip bone or thigh. Loose elbows transmit every heartbeat into the clay.
• Wheel speed fast for centering: roughly two-thirds of full speed. Water on your hands, always, before contact.

The single most common error is trying to centre with hand strength. Your hands only deliver force; the force comes from your braced skeleton leaning in. When teachers say 'use your body', this is the entire content of the instruction.

coning up and down

You do not squash clay into centre; you move it through centre. Squeeze the base with both hands and the clay rises into a cone, forced through its own axis. Then press the cone down with the heel of one hand while the other steadies the side, and it settles wider and truer. Two or three cycles of this and the wobble visibly dies. Coning also finishes the job wedging started, aligning particles around the throwing axis.

how you know it is centred

Rest a fingertip lightly on the spinning wall and close your eyes. Centred clay feels like nothing: no pulse, no push, a surface standing still while moving. If your finger ticks outward once per revolution, there is a high side. Find it with your eyes open, then lean in again. Beginners trust their eyes; the skill arrives when you start trusting your hands.

the plateau is normal

Nearly everyone centres once, celebrates, and then cannot repeat it for two sessions. The skill consolidates unevenly, like riding a bike in reverse. Keep sessions short and frequent: three half-hours a week beats one three-hour battle. When it locks in, you will centre without thinking about it for the rest of your life, and you will be ready for your first cylinder.