Heidenhain BE412 monitors have been rebuilt using the existing metalwork by us at DNC since 2008. The original i.d.nr. 241 845 01 is a 12″ monochrome CRT monitor running on the TNC355 control among other Heidenhain CNC systems. Our original solution to the rebuild was CRT solution, replacing the existing chassis, tube and wiring with our own electronics. Times are changing and CRT’s have slowly become obsolete from a rebuild point of view. Hence we moved onto LCD rebuilds into customers existing metalwork with the Heidenhain’s being a particular challenge meaning rebuild time was 24 hours rather than same day for most other brands. Now using our proprietary LED system, we are now offering off the shelve replacements to drop straight in place of your BE 412 monitor on your TNC355.