For two years I have been printing in clay with a Bits from Bytes RapMan using the Unfold ceramic print head adaption. However with 3D Systems stopping the production of RapMan's I was looking for a replacement printing rig. Liking the movement and build of the delta I have had a go at building a very simple version, MDF and bought in parts (I don't print in plastic) and initial test look very promising - see YouTube video
The ceramic print head is adapted from a compressed air paste gun from the adhesive industry. Basically it's a large syringe filled with soft clay that is extruded under around 2 bar of air pressure. The print head weighs about 800 gms, more than a can and a half of baked beans and as you can see the delta carries it well.
What layer heights and speeds do you do in ceramic?