Why I Use Bats with Pre-Drilled Holes for Centering Large Batches

When I am throwing a group of matching bowls, cups, or small plates, the first few minutes at the wheel set the rhythm for the entire batch. A well-prepared bat keeps each piece stable, makes lifting safer, and gives me a repeatable starting point. For larger forms, that consistency matters even more because a small wobble in the beginning can become a serious distortion by the time the walls are pulled.

I use bats with pre-drilled holes because they turn a fiddly part of studio work into a dependable system. The holes align with pins or a bat mate fixed to the wheel head, so I can remove one piece and place another bat in exactly the same position. It is a simple solution, but it supports everything from production pottery to the hands-on clay sessions I run for people discovering ceramics for the first time.

Why A Bat Makes Batch Throwing Easier

A bat gives freshly thrown clay a firm surface while it is still soft and vulnerable. Instead of trying to wire a large piece from the wheel head, I can let it firm up on its own bat before trimming or moving it. This is particularly useful for wide platters, serving dishes, and low bowls, where lifting directly from the wheel can cause the base to flex.

With a pinned bat system, the placement is repeatable. I can centre the bat, secure it, and begin wedging and throwing without spending time checking whether the board is slightly off-centre. When I am making ten or twenty related forms, that saved time adds up quickly. The process becomes calmer, and my attention stays on proportion, wall thickness, and the character of the surface.

For Australian makers working in shared studios, this also helps with scheduling. Wheel time can be limited, and a shelf may need to be cleared before the next class or firing cycle. Pre-drilled bats allow several pieces to be prepared efficiently, then moved to a designated drying area without disturbing the work around them.

How Pre-Drilled Holes Improve Centring

The holes themselves do not centre the clay; they centre the bat and keep it from shifting. I still need to place the clay firmly, compress the base, and use even pressure while bringing the lump into alignment. The advantage is that the platform beneath my hands is already stable, so I am not correcting movement caused by a loose or poorly seated board.

I prefer holes that match the wheel’s pins precisely, with enough clearance for easy removal but no noticeable side-to-side play. If the fit is too tight, changing bats becomes frustrating. If it is too loose, the bat can knock slightly as the wheel turns, which shows up as an uneven rim or a soft, wandering profile.

The surface of the bat matters as well. Timber, MDF, plastic, and composite boards each behave differently with moisture. A porous surface can help a wet base release some water, while a smoother board may be useful for pieces that need to remain easy to lift. I keep several sizes ready, from compact boards for mugs to broad bats for sculptural work.

Managing Moisture And Large Forms

Large batches often fail through moisture imbalance rather than poor throwing. If the base stays wetter than the walls, a bowl can slump or crack as it dries. A bat with pre-drilled holes lets me move the piece in a controlled way and place it on a breathable board, plaster surface, or ware board when the timing is right.

I also pay attention to local studio conditions. A humid summer in Brisbane can slow drying, while a dry, hot day in Adelaide can pull moisture from exposed rims surprisingly fast. In Melbourne, a cool studio may require more patience between throwing and trimming. The bat is not a substitute for careful drying, but it makes it easier to respond to those changes without handling the clay unnecessarily.

For wide pieces, I sometimes cover the rim loosely with plastic while leaving the base area more open. This reduces the difference between the top and bottom. I avoid stacking freshly thrown forms too soon, even when I am keen to clear the wheel. A little extra time on a stable bat is far less costly than repairing a warped platter.

A More Efficient Production Rhythm

My batch process begins with preparing all the bats, wedging the clay, and deciding the target weight for each form. I mark or group the bats by size so I am not searching for the right board with wet hands. Once the first piece is thrown, I can repeat the same sequence: centre, open, pull, shape, compress, and check the profile.

The system also supports small variations without losing a family resemblance. I might alter the height of a bowl, soften a curve, or add a carved line inspired by coastal rock pools. Because every piece begins from a similar setup, those artistic differences feel intentional rather than accidental. Visitors can see available and sold work through my ceramic art portfolio and notice how related forms still carry individual marks.

For workshops involving wine and tapas, preparation is especially important. Participants need room to focus on the tactile experience of clay, not on a wheel accessory that keeps slipping. I can set up bats in advance, keep the working area organised, and make the session feel welcoming and relaxed. As we might say in Australia, it keeps the whole thing “no dramas”.

Practical Habits For Australian Potteries

Australian clay bodies can vary widely between suppliers, and firing temperatures, grog content, and shrinkage rates all affect how a batch behaves. I test a new clay on a few bats before committing to a large run. A board that works beautifully for a fine porcelain-like body may not be ideal for a heavily grogged stoneware.

Transport is another consideration when selling at makers’ markets or shipping work interstate. A piece left on a bat for too long can bond to it, while a piece moved before it has enough strength can distort. I use the bat as a temporary support, then transfer work carefully once the base has firmed. This is useful when preparing stock for markets in Sydney, Melbourne, or regional coastal towns where handling and travel add extra movement.

The following habits keep my system reliable:

• Check every hole and pin before beginning a large batch.
• Keep bats flat, dry, and stored away from direct sun or sudden heat.
• Match bat size to the form, leaving enough support around the clay.
• Record clay type, piece weight, and drying conditions for repeat orders.
• Replace boards that warp, swell, or develop loose holes.

A pre-drilled bat system is modest equipment, but it gives me control over timing, movement, and repetition. It lets me centre large batches with less interruption while leaving enough space for the organic lines and surface details that make each finished piece personal.

Explore my pottery, decorative plates, sculptures, and upcoming clay experiences through Amelia Creations, and follow along as each batch develops from a quiet lump of clay into work made for everyday spaces.