hi im sure this is the millionth question about this i currently have the SH-G570 rudia board 
when i first got the machine it ran sweet 4 days ago i use lightburn to engrave all my stuff but noticed the polarity was back to front so i went into settings and altered them (i also forgot to backup original ) so now i have a machine that slams from one side to another ive also notice the axis x,y,u show 10000.0 
when i turn it on i have to press esc button to stop it grinding into the side
thanks
ade
            
			
			
			
			
			
			
			
				
			
			
			not sure if this is the right section having control problems
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				Adrian Barrett
- Posts: 6
- Joined: Sat Oct 02, 2021
- Location: cumbria
- Country: united kingdom
- Nickname: ade
- Laser Machine Make or Type: sh-g570 grey and blue
- Laser Power: 80
- Laser Bed Size: 500x700
- Home Position: TR
- Control Software: LIGHTBURN
- RDWorks Version: 23.01.10
- Ruida Controller: RDC6445
- Windows Version: 10
- 
				Lightburn Admin
- Posts: 58
- Joined: Wed May 31, 2017
- Location: California
- Country: United States
- Nickname: LBAdmin
- Laser Machine Make or Type: Kehui 700x500 (Ruida controller)
- Laser Power: 100w
- Laser Bed Size: 700 x 500mm
- Home Position: TR
- RDWorks Version: 8.0.18
- Windows Version: 10
- Contact:
LightBurn automatically saves a backup for you.
Go to File > Open prefs folder and look for an LBSET file from around the time you changed it. Copy that out onto your desktop, then you can Load that from the machine settings window and Write it back to the controller.
            
			
			
			
			
			
			
			
				
			
			
			Go to File > Open prefs folder and look for an LBSET file from around the time you changed it. Copy that out onto your desktop, then you can Load that from the machine settings window and Write it back to the controller.
- Gene Uselman
- Posts: 2180
- Joined: Thu Jul 07, 2016
- Location: Suburban Minneapolis, Minnesota, US
- Country: USA
- Nickname: Gene
- Laser Machine Make or Type: QC
- Laser Power: 130W
- Laser Bed Size: 900x1300
- Home Position: TR
- Control Software: LIGHTBURN
- RDWorks Version: RDw .19 & Lightburn
- LightBurn Version: Latest
- Ruida Controller: RDC6442
- Windows Version: Win 10 Pro
- Accessories: I have a combining lenses, pin tables [homebuilt], honeycomb tables , wireless remote, Modifed Ultimate Air Assist, home built non-powered rotary device, PrusaMK4 and Mini Prusa printers.
That is a wonderful feature Oz- I don't recall knowing that but when I opened Notepad++ there was a lbset file already open... so I once knew it and forgot. I will update our file on recovering the machine/Vendor files to reflect that- it is reason enough to buy Lightburn in itself. Thanks Gene
            
			
			
			
			
			
			
			
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