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								by Xenocrates » 
			
			
			
			
			
			TR means Transmit receive.  Is it connected to anything via USB, such as a computer?  Is it powering on in a particularly strange pattern?
			
			
									
						
							Machines:
Rostock Max V2, Duet .8.5, PT100 enabled E3D V6 and volcano, Raymond style enclosure
Automation Technology 60W laser cutter/engraver
1m X-carve router
Sic Transit Gloria Mundi
01-10011-11111100001