CG-1 machine Software V6.4-4 release notes.  



  1. We fixed a bug in the “resume build” routine where the firmware was not accurately taking into account of the height of the build when resuming builds with more than 200 layers built.   This error caused the gantry to crash into the build during resume which could only be cleared by re-initialising the printer and also meant that build recovery of >200 layer builds was impossible. 
  2. We fixed a bug where under certain conditions during job start the printer would acknowledge input to start the print job on the HID Screen but afterward nothing would happen.  This was caused by incorrect processing of prior HID error messages.