It’s rare nowadays that I have those lightbulb moments when making, throwing or trimming pottery, as in I suddenly learn or figure out a new technique that might make some particular process easier. Yet, recently, I’ve been trying to find new, faster ways of hollowing out the thick wads of clay that are often on the bottoms of my bowls, the foot-rings. These are a huge time sink in terms of turning my pots and so, lately, I’ve switched from using a looped steel turning tool to gradually carve away from the centre outwards, to using a exceedingly sharp tungsten carbide trimmer to gouge out a channel of material that then shears away a central portion of clay. It’s tricky and it requires a lot of control but after trimming through my latest batch of medium angular bowls and focusing on this technique, I’m relishing in the few seconds it saves for each piece. Yes, seconds, but twice that by hundreds of bowls throughout the year and it adds up, and I’m all about increasing my efficiency making this particular shape as truthfully, they were taking me far too long. I’ve cut down the trimming time from about 10-12 minutes to about 5-6 minutes, twice as fast isn’t bad, but it’s taken coming extremely familiar with this shape, that’s where the confidence in turning quickly really comes from, I think. Anyhow! My video this weekend explores this specific technique in more detail. There’s not much to it honestly, but it’s a small revelation that I’m quite happy about. It’s the small things.
The speaker shares a specialized technique for trimming and hollowing out the feet of ceramic bowls to increase production efficiency. By shifting from traditional gouging to a shearing method using a tungsten carbide tool, the artist reduced the trimming time per piece from 12 minutes to 6, emphasizing the role of repetition and confidence in mastering the craft.
Sometimes, I want to make a video that explores just one very simple technique.
Well, simple might be underselling it, but it's a way of trimming and hollowing out these tool
feet that's come to really speed up the process, or at least shave a few seconds off of a step
that used to take me perhaps twice as long. That's what this weekend's video will be about.
And to be honest, I think I generally make two styles of videos. There are those that
appeal to a much wider audience, such as the material tests, or the beginning-to-end style
and then there are the videos like this that focus on one very specific step and skill,
which I think are probably consumed by potters mainly.
Anyhow, I've been making a ton of these bowls recently,
mainly so I have enough stock for my next few online shop restocks.
When I first started trimming these shapes, each one would take me about 10 to 12 minutes.
Now, I've managed to work that down to about 6 minutes per piece, and I'll include that full
process uninterrupted and without a narration towards the end of this video.
If you make enough of anything, you will gradually get faster, and whilst not everything is about
speed, these pots were simply taking me too long to trim. And so in the last couple of weeks,
as I've made about a hundred of these, I've been actively thinking how I can speed the process up.
The first and most important thing is simply confidence. The more you throw and trim a
certain shape, the better you get to know it. You begin to learn its limitations and what to do
and what not to do. And with this shape, much of that was learning how to trim the underside of
these with the bowl held upright like so, which is rather unconventional.
The reason this helps me work more quickly is because I can feel the cross-section of
the vessel as I'm turning it. This alone means I can work more confidently, as I can tell if
the walls are too thin or not, and I have a better understanding of the vessel's balance.
Of course though, the biggest time sink with these is probably the foot ring.
That thick block of clay you can see on the bottom is practically entirely solid. This means
that the process of shaping the foot and hollowing it out takes up roughly half the time when turning
these, and so it's this step that I really wanted to speed up. I use a pair of calipers that are set
to 3.8 centimetres wide, and I score a circle on the bottom of the pot to designate its width. This
way the bolts match more closely. I also then switch to a turning tool that has a long blade,
which I can use as a reference and a guide in order to gauge the height of the foot ring itself.
Spinning the wheel more rapidly does help my turning feel more consistent, so I'm intentionally
going fast, and in order to get rid of the chattering that can naturally occur on the
outside surface, I trim these outer planes with the blade held at an angle to them. This way only
a small portion of the blade's length is actually making contact with the clay. This leads to a
smoother surface, which means I have to spend less time fussing over it and tidying it up.
Anyway, all of this is building up to the new technique I've been using, and whilst you may
have already spotted me doing it in some videos, I haven't spoken properly and thoroughly about the
change I've made, why I do it, and how it's helpful. Now, in the past, to begin hollowing
out this block, I would lower a small turning tool into the clay and then gradually work it
out towards the outside, or gouge away a larger segment at a time and slowly move outward, like so.
The problem is this works best either with incredibly sharp tools, or with clay that's
actually on the soft side. If you're working when the clay is soft, it can be problematic,
as the trimmings will simply stick in that hole, becoming lodged in place, and the foot ring itself
can actually bow outward, and things can become quite difficult to control. So, in order to try
and make this more efficient, I've been using this hook-style turning tool that's made of tungsten
carbide that's extremely sharp, and I'm going to press it into the foot ring at about a 45 degree
angle, to essentially create a deep groove that then shears away the clay in the very centre.
You can then lift out the excess, and then I use this same tool to do another deep gouge
into the foot, closer to the outside wall. This does create a little flurry of clay in the centre,
but I've created the rough boundaries for this hollow in two movements, which thereafter is
tidied up with one of these steel-looped turning tools. Now, you have to realise that I trim pots
so much, that over the years my technique hasn't really changed that much. I've certainly become
faster and more confident, but this method of sort of shearing away material isn't something
I've done before, nor was it something I've ever been taught. Which is understandable, really,
as I don't know many other potters who trim pots to the degree I do. Anyhow, the foot is tidied up,
and I trim three distinct facets on the very bottom of the base, as this will make waxing
and glazing easier, as it creates distinct lines, as opposed to, say, a fully curved base, which
means it's easier to see where the boundaries are. I can also use them as a guide of sorts,
to glide a knife along, to slice away excess glaze that may coat the foot after it's been dipped.
If I spot any other scratches or burrs of clay stuck into the surface, I'll quickly trim them
away. And that's one of these relatively complex forms finished. Another tip for speeding things
up is mainly about the order of things. I try to minimise on those moments where I'm going back
over a surface I've already finished, in order to perfect it, or change it, or clean it up,
if I've accidentally damaged or scratched a surface that I've technically already spent
time finishing. If you find yourself constantly going back and forth, it can really add a huge
amount of time to the making process. You may need to sharpen your tungsten cut by turning tools
to do this. This is something I'll do very rarely with some diamond files, but thankfully I have
this trimmer, which I haven't used much before, and it's incredibly sharp, especially the tip,
which is great for this technique, as it means the blade really sinks in when you make initial
contact, or at least I don't feel as if I actually have to press very hard, which is a good thing,
it means I can concentrate on holding the blade steadily, focusing on control. I spin the wheel
quickly, as with turning, like throwing, the more rapidly the material passes through whatever's
making contact with it, the more consistent the result and finish that's left. And here are the
two parts. There's the sheared off section, and the longest strand of clay, which is the portion
that's carved away with the turning tool. The more I've practised this, the more confident I feel in
taking larger bites out of the clay, meaning that as this day went on, when I was really focusing
on this technique, the time it took me to trim the feet of these gradually became faster.
It's an interesting thing learning how to make pottery, as at the beginning I could probably
throw about three or four pots an hour, not to mention that making every single pot felt like
a challenge in itself, as in I wouldn't necessarily know if I would get anything off the wheel at the
end of the process, thus at the beginning probably more than half of what you make ends up as a
But as they say, you learn through failure, and it's a good thing to experience, as it's through
failure that you learn the limitations of the materials you work with, be it metal, wood, clay,
stone, or anything really. You're a novice, and therefore you don't know where those limits are,
and it's only through intense practice and experience that you begin to figure those out
and gradually become more fluent. If your aim is to become a production potter, if you can half
the amount of time it takes you to make something, say from 30 minutes to 15 minutes, you're
essentially doubling your output, which is huge when you think about it, and that's why I tend to
push speed in my practice. The other reason is because it allows me to discover things that I
probably wouldn't find without it. For instance, if you have to make five of a specific shape,
you'll barely become acquainted with it, but if you throw and trim a hundred, you'll begin to push
at those boundaries and really figure out the limits, and you'll gain a level of mastery that's
actually quite difficult to achieve unless you've pushed yourself to work in this manner.
The things you end up thinking about as you make shift, too, as at the beginning you're often
running through the making steps themselves. You're thinking about how to centre, how to position your
hands, how to hold the tool, which tools I should be using, and if a pot does collapse or something
fails, you wonder why that happened. But with enough practice, all of that becomes secondary,
and you can begin to think about things such as proportion, surface quality, and you can work on
those intentionally, whereas during those early stages there's sort of an overwhelming amount to
until the making itself sort of becomes subconscious and secondary. But then,
occasionally, something like this pops up, and in my mind, it's one of those aha moments. Something
clicks, and I can't tell you how refreshing that feels after working in this craft for such a long
time. When you're a beginner, you learn something new every week, or even every time you throw.
You see something, or read something, or watch something that informs your making,
suddenly making one particular step you were struggling with make sense. Those moments feel
so rewarding, and I think that's partly one of the things that makes learning pottery so
addictive. But the thing is, you encounter so many of these over the first couple of years,
and then, as you become more practiced, things begin to level out, as those light bulb moments
become less frequent. At least, that's how I've experienced learning this craft. I'm sure that
would be easily altered and changed if I took some time out to attend some masterclasses taught
by other potters. Anyhow, let me know if you try this technique. It's tricky, it requires a steady
hand and a lot of control, but I'm relishing in the few seconds that it saves me. Whoever thought
that I'd be min-maxing my making process? Anyhow, here's how I trim one of these bowls from beginning
to end, and I'll catch you up in about five minutes' time. In the grand scheme of things,
it's still quite slow going, as turning these 20 bowls took me two hours or so, but they're
intricate shapes full of subtlety. They're both curved and angular, sharp and light, and whilst
they may not be the most practical objects in the world due to their tall, narrow feet, I absolutely
love making them, and ultimately, I think that's the most important thing about buying art and
craft. If the person who produced it loved the process, and they like the objects they create,
then what you're buying into is sort of part of their identity. Anyhow, I hope you like this
technique-centric video. Sometimes, when it's been a busy couple of weeks, a straightforward film like
this is an absolute pleasure for me to edit and narrate, even if I know it won't appeal to the
masses like other videos might. Thanks so much for watching, and I'll see you next time.