What you can't see in the pic is the base. The upright is a 1/2" pipe and the base is a flange. The flange is clamped to the wheel now but some sort of permanent attachment will follow. The height is set with the bottom block and uses an eye bolt as the set screw. The top block is left free to rotate out of the way until needed. I use a brush as the pointer because it is a lot softer than other options and won't mark the pot being thrown. The brush is held in a hole drilled through the block and is held in place by jamming a toothpick in the hole with the brush handle.
Pointers aren't needed for a lot of throwing but I find them especially useful when making things that need to be a specific size like nesting bowls and drinking mug sets.
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