When placing the robosurgeon on a server, the server crashes most times. If it doesn't crash, the robosurgeon isn't used up on placing, and can't be broken, appearing to break but staying there, revealed upon relogging.

Server crashlog:
http://pastebin.com/FaFXQ0Nf

Confirmed. Working on a fix. Thanks for the report!

Fixed in 0.1.2