Cornetto Muto (Mute Cornett)

thingiverse

Steven Silverstein's Mute Cornett design was converted into STL files by simply taking measurements. The Cornett had to be divided into four sections for printing, with alignment cones created to ensure proper X-Y placement during assembly. These cones were made as the negative space within the Cornett. Two-part epoxy was used to glue the pieces together, while silicone-embedded parchment paper prevented the internal alignment cones from getting glued. The print process required caution due to height limitations; gcode was edited accordingly. Both solid and three-shell prints at varying layer thicknesses were attempted for airtightness, with clear Shellac applied as a final coat. The assembled Cornett should play an A440 lowest note. Alignment cones were printed at 99.5% scale, two shells, and .34 layer thickness. For entertainment, a video of the attempt to play the Cornett can be viewed.