I don't know if you know how it works but if the server crashed and it Auto-Disconnected you then you get it automatically refunded, if you timed out or it was a community crash like what happened in the past few days get on teamspeak, poke ChuteUK or EMP Your steam id, the proof and the time the server crashed and they will refund the printers for you I am assuming as Chute has done the same twice now for me with my black diamonds that I use. EMP has done it once but it didnt work because I left during the auto disconnect before the server fully crashed. If it was nuclear printer and everything I don't know if they can add it to your refunds or not but I think they can as thats what EMP tried.
Also I don't know if you reconnected or not but if you did Crash and wait out the Auto Disconnect to see if the server fully crashed and you rejoin it should be there with all your items you had on you and the printers you had down when it crashed. If not do what I said above^^