(It is called chiseled printer on the WIKI, but chisel station in the current version of the mod.)

When putting a pattern and a chisel into the printer, the server crashes at the moment you put in the second part - in my case the chisel. The server log shows a NoClassDefFoundError related to a commons collection class. Unfortunately I lost the exact log since I had to restore a backup of the server (twice now already...).

As soon as the chunk with the printer is loaded, the server crashes immediately, so we were unable to resolve the issue without restoring a backup. Briefly removing the mod and restarting - of course - removed all chisel'd blocks, which is undesirable as well.