We printed this part on the Stratasys ObJet Eden 260 with the VELOGray compound at the UMass Lowell NERVE Center.
The printer uses a support material to allow for very precise, “droop-less” printing, even of overhangs. Our printer printed the part concave-side down.
On other printers, other configurations or modifications may be required.
A partial timelapse of the print — (the print head has a light. the head moves. therefore, there’s a BRIGHT FLASHING LIGHT in this video. sorry!)