Help with Ruida 8445 controller

Hardware settings, adjustments and fixes and other hardware discussion. This includes the "doHICky" Laser Power measurement system by Russ.
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YnotAZ
Posts: 2
Joined: Mon Jan 19, 2026
Location: Phoenix, AZ
Country: USA
Nickname: AJ
Laser Machine Make or Type: DIY- original China import
Laser Power: 100
Laser Bed Size: 750x500
Home Position: TR
Control Software: LIGHTBURN
RDWorks Version: 8.00.32
LightBurn Version: 2.0.05
Ruida Controller: Other
Windows Version: 11
Accessories: Ruida controller RDC8445S(EC)

I bought a laser and it was reset to factory original with Chinese as the only language selection. For many reasons I decided to just replace the Topwisdom TLA1 with a Ruida 8445 which I found a deal on.

I have it running and burning, but a couple problems remain and not all features are working. Rather than making a laundry list here I am hoping to solve them one at a time.

My first problem is on startup, X, Y, and Z values are all 99999. I've done what I could find, checking X&Y limit switch function, and setting machine homing to the correct upper right corner to no avail. I can reset the values to zero after startup and the machine functions, but I can't get the startup to act normally. any ideas or help is appreciated.

I will tag these questions China-Ruida because there are more to come. Thanks
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