Once that road is complete, the head will move over the purge bucket, and the Z stage will descend to the bottom of the envelope. In the Pause State the printer can be resumed, material can be loaded and unloaded, the build can be canceled, and printer maintenance may be performed. Electronics Overview Figure 1: Electronics Overview detail I/O PDB Controller Board Support heater +120 VDC power supply +5 and +12 VDC Power Supply SBC +24 VDC power supply 120-240 VAC AC Input 120-240 VAC in -6