Getting the Clay to Stick and the Wheel Up to Speed
Okay. Your clay's wedged, your seat's set up, your water's where you can reach it without leaning. Now we actually turn the wheel on.
Two separate problems live in the title of this lesson, and beginners usually only think about one of them. Problem one: getting the clay to stick to the wheel head so it doesn't slide around while you're trying to center it. Problem two: getting the wheel itself up to a speed where centering is even possible. Skip either one and you'll fight the clay for twenty minutes and blame yourself for something that was never your fault.
Sticking the clay down
Your ball of wedged clay needs to go dead center on the wheel head, more or less. Don't obsess over this part. You're not centering with your eyes, you're centering with your hands once the wheel's spinning. Eyeballing it close is enough.
Wet the wheel head first. A little water, not a puddle. Then throw the clay down with some actual force, straight down, not a gentle placement. You want a solid smack. If you set it down soft like you're plating a cookie, it won't grab, and the first time you apply pressure it'll slip sideways and you'll be chasing a wandering lump around the wheel head, which is its own kind of miserable.
Once it's down, give it a shove side to side with your palm before you turn anything on. If it doesn't budge, it's stuck. If it slides, pick it up, wet the wheel head again, and smack it down harder. That's it. That's the whole skill. Four seconds, most days.
Speed
Here's the part people don't expect. You center at full speed, or close to it. Not a gentle spin. Slow speed is for shaping later, for trimming, for the delicate stuff. Centering wants speed and a steady hand fighting against it.
New folks tend to ease into the pedal like they're driving in a parking lot, worried about hitting something. Push the pedal down further than feels reasonable. The wheel should be moving fast enough that the clay blurs into a smooth cone shape instead of a lumpy circle you can still make out the edges of. If you can see the lump wobbling as individual shape, you're going too slow and you'll be pushing against that wobble the whole time instead of a clean spin.
Elbows locked into your hips, not floating in the air. That's a physical instruction, not a mood. Your arms are going to get tired fast if they're doing the work instead of your body weight. Brace in, lean your weight down through your arms into the clay, and let the wheel do the spinning while you hold steady.
The part where it goes wrong, which is fine
Your hands will slip. The clay will wobble off to one side. It'll feel like the clay has a mind of its own and it's decided to hate you specifically. It hasn't. It's just clay and speed and your hands not agreeing yet.
This is where I'll say the thing I say a lot in this class: I run my hands wetter than most instructors teach it. That's a preference, not gospel, but it's mine and I'll defend it. Dry hands drag and catch on spinning clay, and dragging hands tear up a beginner's centering before it ever gets a chance to work. Keep your water bowl close and go back to it more than feels necessary. A little too wet is a much smaller problem than dry hands ripping your cone apart.
One real caution here, not a scary one, just a true one: keep your sleeves rolled up and don't wear anything loose that could catch on the wheel head while it's spinning at speed. It's a slow machine as machines go, but it doesn't know the difference between clay and a shirt cuff.
My first mug that actually survived the kiln had a handle that pulled a little to one side. I've still got it. I drink coffee out of it every morning, on purpose, because a straight handle would've told me I did everything right, and I didn't, not that time. The lopsided one's more honest. Same thing applies here. Your first few attempts at speed and stick are going to look uneven and feel out of control. That's the information you need, not a failure.
What you're actually practicing tonight
Not centering yet. Just the stick and the speed. Smack the clay down, check that it holds, get the wheel moving fast enough that the wobble disappears into a blur. Do that ten times if you have to. It's boring and it's the whole foundation for next week, so don't rush past it just because it's not the fun part yet.
Before next time, if you've got access to a wheel outside class, practice just the throw-down and speed-up, no centering attempt at all. Get comfortable with the pedal before you ask your hands to do anything complicated on top of it.