Adjustable Trimming Bat
Our local clay store stocked bat-contraptions with adjustable feet to clamp your workpiece. These were more than $200. So I took a look and modelled one to print.
My wheel has a 12” head. I decided to make a 10” diameter bat. My printer’s build volume has a 6” square footprint, so I had to split the circle up into 3 pieces.
The clay piece sits on the top layer. It has 3 little feet that clamp the workpiece, sliding up through slots, The base layer sits flat on the wheelhead and has a spiral guide for 3 sets of feet to travel radially. The spiral is s.t. it tightens on the piece when trimming clockwise.