RD6432 Homeing Not working in Lightburn but is in RDWorks

LightBurn Hardware Compatibility Ruida controllers
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1

Limit switches activate correctly on the diagnosis screen on the controller. In RD works, the machine homes correctly. In lightburn, when I hit home, it moves to home but will crash into the switches and not stop. The machine is a homemade similar to the “Y-1200”. I’m including the backup of my controller config. Any ideas?

{
    "Name": "Ruida",
    "Settings": [
        {
            "Desc": "Idle speed (mm/s)",
            "ID": "0x5",
            "Value": 400
        },
        {
            "Desc": "Idle acceleration (mm/s^2)",
            "ID": "0x20a",
            "Value": 1500
        },
        {
            "Desc": "Idle delay (ms)",
            "ID": "0x203",
            "Value": 0
        },
        {
            "Desc": "Start speed (mm/s)",
            "ID": "0x201",
            "Value": 10.007
        },
        {
            "Desc": "Min acceleration (mm/s^2)",
            "ID": "0x209",
            "Value": 750
        },
        {
            "Desc": "Max acceleration (mm/s^2)",
            "ID": "0x202",
            "Value": 1500
        },
        {
            "Desc": "Accel factor % (0 to 200)",
            "ID": "0x21a",
            "Value": 80
        },
        {
            "Desc": "G0 accel factor % (0 to 200)",
            "ID": "0x21c",
            "Value": 120
        },
        {
            "Desc": "Speed factor % (0 to 200)",
            "ID": "0x21b",
            "Value": 80
        },
        {
            "Desc": "X start speed (mm/sec)",
            "ID": "0x224",
            "Value": 10
        },
        {
            "Desc": "Y start speed (mm/sec)",
            "ID": "0x234",
            "Value": 10
        },
        {
            "Desc": "X acceleration (mm/s^2)",
            "ID": "0x225",
            "Value": 1500
        },
        {
            "Desc": "Y acceleration (mm/s^2)",
            "ID": "0x235",
            "Value": 1500
        },
        {
            "Desc": "Line shift speed (mm/sec)",
            "ID": "0xe",
            "Value": 150
        },
        {
            "Desc": "Facula Size (50 - 99%)",
            "ID": "0xb",
            "Value": 98
        },
        {
            "Desc": "Engraving factor % (0 to 100)",
            "ID": "0x237",
            "Value": 100
        },
        {
            "Desc": "Enable Rotary",
            "ID": "0x2260001",
            "Value": false
        },
        {
            "Desc": "Pulses per rotation",
            "ID": "0x21f",
            "Value": 10000.008
        },
        {
            "Desc": "Diameter",
            "ID": "0x221",
            "Value": 100
        },
        {
            "Desc": "Focus Distance",
            "ID": "0x20e",
            "Value": 1
        },
        {
            "Desc": "X Axis Backlash (mm)",
            "ID": "0x2b",
            "Value": 0
        },
        {
            "Desc": "Y Axis Backlash (mm)",
            "ID": "0x3b",
            "Value": 0
        },
        {
            "Desc": "Enable wireless panel speed shift",
            "ID": "0x2260004",
            "Value": false
        },
        {
            "Desc": "Wireless panel speed fast (mm/sec)",
            "ID": "0x231",
            "Value": 200
        },
        {
            "Desc": "Wireless panel speed slow (mm/sec)",
            "ID": "0x232",
            "Value": 50
        },
        {
            "Desc": "Engraving Mode",
            "ID": "0x100400",
            "Value": "Common Mode"
        },
        {
            "Desc": "Return Position",
            "ID": "0x200",
            "Value": "No Return"
        },
        {
            "Desc": "Homing Speed (mm/sec)",
            "ID": "0xc",
            "Value": 7.5
        },
        {
            "Desc": "Laser 1 Output Signal",
            "ID": "0x40200",
            "Value": "Low"
        },
        {
            "Desc": "Laser 2 Output Signal",
            "ID": "0x40400",
            "Value": "Low"
        },
        {
            "Desc": "Water Protect Enable, Laser 1",
            "ID": "0x40020",
            "Value": false
        },
        {
            "Desc": "Water Protect Enable, Laser 2",
            "ID": "0x40040",
            "Value": false
        },
        {
            "Desc": "Enable air-assist output",
            "ID": "0x40002",
            "Value": false
        },
        {
            "Desc": "Enable door open protect",
            "ID": "0x40001",
            "Value": false
        },
        {
            "Desc": "Enable Homing",
            "ID": "0x200008",
            "Value": true
        },
        {
            "Desc": "Limit Trigger",
            "ID": "0x200006",
            "Value": false
        },
        {
            "Desc": "Invert Keypad Direction",
            "ID": "0x200005",
            "Value": false
        },
        {
            "Desc": "PWM Rising Edge Valid",
            "ID": "0x200004",
            "Value": false
        },
        {
            "Desc": "Limiter Polarity",
            "ID": "0x200003",
            "Value": true
        },
        {
            "Desc": "Direction Polarity",
            "ID": "0x200002",
            "Value": false
        },
        {
            "Desc": "Step length (um)",
            "ID": "0x21",
            "Value": 6.240432
        },
        {
            "Desc": "Max speed (mm/sec)",
            "ID": "0x23",
            "Value": 500
        },
        {
            "Desc": "Jumpoff speed (mm/s^2)",
            "ID": "0x24",
            "Value": 20
        },
        {
            "Desc": "Max acceleration (mm/s^2)",
            "ID": "0x25",
            "Value": 5000
        },
        {
            "Desc": "Max travel (mm)",
            "ID": "0x26",
            "Value": 800
        },
        {
            "Desc": "Keypad jumpoff speed (mm/sec)",
            "ID": "0x27",
            "Value": 13
        },
        {
            "Desc": "Keypad acceleration (mm/s^2)",
            "ID": "0x28",
            "Value": 4500
        },
        {
            "Desc": "E-Stop acceleration (mm/s^2)",
            "ID": "0x29",
            "Value": 10000
        },
        {
            "Desc": "Home offset (mm)",
            "ID": "0x2a",
            "Value": 10
        },
        {
            "Desc": "Enable Homing",
            "ID": "0x300008",
            "Value": true
        },
        {
            "Desc": "Limit Trigger",
            "ID": "0x300006",
            "Value": false
        },
        {
            "Desc": "Invert Keypad Direction",
            "ID": "0x300005",
            "Value": false
        },
        {
            "Desc": "PWM Rising Edge Valid",
            "ID": "0x300004",
            "Value": false
        },
        {
            "Desc": "Limiter Polarity",
            "ID": "0x300003",
            "Value": true
        },
        {
            "Desc": "Direction Polarity",
            "ID": "0x300002",
            "Value": false
        },
        {
            "Desc": "Step length (um)",
            "ID": "0x31",
            "Value": 6.240432
        },
        {
            "Desc": "Max speed (mm/sec)",
            "ID": "0x33",
            "Value": 400
        },
        {
            "Desc": "Jumpoff speed (mm/s^2)",
            "ID": "0x34",
            "Value": 15
        },
        {
            "Desc": "Max acceleration (mm/s^2)",
            "ID": "0x35",
            "Value": 1500
        },
        {
            "Desc": "Max travel (mm)",
            "ID": "0x36",
            "Value": 800
        },
        {
            "Desc": "Keypad jumpoff speed (mm/sec)",
            "ID": "0x37",
            "Value": 15
        },
        {
            "Desc": "Keypad acceleration (mm/s^2)",
            "ID": "0x38",
            "Value": 1500
        },
        {
            "Desc": "E-Stop acceleration (mm/s^2)",
            "ID": "0x39",
            "Value": 6000
        },
        {
            "Desc": "Home offset (mm)",
            "ID": "0x3a",
            "Value": 10
        },
        {
            "Desc": "Enable Homing",
            "ID": "0x400008",
            "Value": false
        },
        {
            "Desc": "Limit Trigger",
            "ID": "0x400006",
            "Value": false
        },
        {
            "Desc": "Invert Keypad Direction",
            "ID": "0x400005",
            "Value": false
        },
        {
            "Desc": "PWM Rising Edge Valid",
            "ID": "0x400004",
            "Value": false
        },
        {
            "Desc": "Limiter Polarity",
            "ID": "0x400003",
            "Value": false
        },
        {
            "Desc": "Direction Polarity",
            "ID": "0x400002",
            "Value": false
        },
        {
            "Desc": "Step length (um)",
            "ID": "0x41",
            "Value": 3.75
        },
        {
            "Desc": "Max speed (mm/sec)",
            "ID": "0x43",
            "Value": 380
        },
        {
            "Desc": "Jumpoff speed (mm/s^2)",
            "ID": "0x44",
            "Value": 10
        },
        {
            "Desc": "Max acceleration (mm/s^2)",
            "ID": "0x45",
            "Value": 5000
        },
        {
            "Desc": "Max travel (mm)",
            "ID": "0x46",
            "Value": 650
        },
        {
            "Desc": "Keypad jumpoff speed (mm/sec)",
            "ID": "0x47",
            "Value": 10
        },
        {
            "Desc": "Keypad acceleration (mm/s^2)",
            "ID": "0x48",
            "Value": 5000
        },
        {
            "Desc": "E-Stop acceleration (mm/s^2)",
            "ID": "0x49",
            "Value": 10000
        },
        {
            "Desc": "Home offset (mm)",
            "ID": "0x4a",
            "Value": 0
        },
        {
            "Desc": "Enable Homing",
            "ID": "0x500008",
            "Value": false
        },
        {
            "Desc": "Limit Trigger",
            "ID": "0x500006",
            "Value": false
        },
        {
            "Desc": "Invert Keypad Direction",
            "ID": "0x500005",
            "Value": true
        },
        {
            "Desc": "PWM Rising Edge Valid",
            "ID": "0x500004",
            "Value": false
        },
        {
            "Desc": "Limiter Polarity",
            "ID": "0x500003",
            "Value": false
        },
        {
            "Desc": "Direction Polarity",
            "ID": "0x500002",
            "Value": false
        },
        {
            "Desc": "Step length (um)",
            "ID": "0x51",
            "Value": 6.337498
        },
        {
            "Desc": "Max speed (mm/sec)",
            "ID": "0x53",
            "Value": 300
        },
        {
            "Desc": "Jumpoff speed (mm/s^2)",
            "ID": "0x54",
            "Value": 15
        },
        {
            "Desc": "Max acceleration (mm/s^2)",
            "ID": "0x55",
            "Value": 5000
        },
        {
            "Desc": "Max travel (mm)",
            "ID": "0x56",
            "Value": 600
        },
        {
            "Desc": "Keypad jumpoff speed (mm/sec)",
            "ID": "0x57",
            "Value": 15
        },
        {
            "Desc": "Keypad acceleration (mm/s^2)",
            "ID": "0x58",
            "Value": 4000
        },
        {
            "Desc": "E-Stop acceleration (mm/s^2)",
            "ID": "0x59",
            "Value": 10000
        },
        {
            "Desc": "Home offset (mm)",
            "ID": "0x5a",
            "Value": 0
        },
        {
            "Desc": "Tube Type",
            "ID": "0x100003",
            "Value": "Glass Tube"
        },
        {
            "Desc": "Multi-Tube Enable",
            "ID": "0x108000",
            "Value": false
        },
        {
            "Desc": "Laser 1 Enabled",
            "ID": "0x102000",
            "Value": true
        },
        {
            "Desc": "Laser 2 Enabled",
            "ID": "0x104000",
            "Value": false
        },
        {
            "Desc": "Laser 1 minimum power (%)",
            "ID": "0x12",
            "Value": 1
        },
        {
            "Desc": "Laser 1 maximum power (%)",
            "ID": "0x13",
            "Value": 90
        },
        {
            "Desc": "Laser 1 frequency (hz)",
            "ID": "0x11",
            "Value": 20000
        },
        {
            "Desc": "Laser 1 pre-ignition frequency (hz)",
            "ID": "0x1a",
            "Value": 5000
        },
        {
            "Desc": "Laser 1 pre-ignition percent (%)",
            "ID": "0x1b",
            "Value": 1
        },
        {
            "Desc": "Laser 2 minimum power (%)",
            "ID": "0x18",
            "Value": 1
        },
        {
            "Desc": "Laser 2 maximum power (%)",
            "ID": "0x19",
            "Value": 99
        },
        {
            "Desc": "Laser 2 frequency (hz)",
            "ID": "0x17",
            "Value": 20000
        },
        {
            "Desc": "Laser 2 pre-ignition frequency (hz)",
            "ID": "0x1c",
            "Value": 5000
        },
        {
            "Desc": "Laser 2 pre-ignition percent (%)",
            "ID": "0x1d",
            "Value": 1
        }
    ]
}
2

If the home switches are wired as normally open and pull the Ruida terminal to ground when activated, then flip their Limiter Polarity values to False.

If that doesn’t improve the situation, then something not at all obvious is kaflooie.

3

Setting these to True is what actually allowed homing in RDworks. If I home from the controller, it will home correctly. Then, lightburn seems to be able to position correctly and works as you would expect a “homed” machine to I just found out while tinkering. One thing to note, even the X and Y auto homing are set to TRUE in RDworks, the machine does not attempt to home when I turn it on. I feel like it is supposed to?

4

This is how you tell the Ruida if these axes need to homed before operation.

Does it home consistently from the reset button on the Ruida console?

Surprised you have water protection disabled… why?

:smile_cat:

5

So the switches really are normally closed, the good old CNC way! :grin:

We’ve seen several cases like that, where the settings indicate the controller should automatically home at startup, but it does not. It seems like there’s an additional group of settings not available to LightBurn controlling such functions; some (but not all) of those settings are available in RDWorks.

For example, my KT332N controller has an autofocus “pen” = switch and controls the platform position using the U channel. Pressing the Focus button on the machine’s display runs the auto-focus routine. Unlike all the X & Y axes, the controller does not automatically home the U axis, even with its Home setting = True. Something else, deep inside the controller, determines how that works and it’s not configurable.

It may turn out you must manually home the machine before starting LightBurn, because the obvious settings do not make that happen, for no reason anyone can explain.

6

I agree, this is most certainly something set in RDworks. this controller is a dumbed down basic version and I wish I went with something a little more mainstream. Oh well.

For now my solution seems to be homing the machine by “Resetting” the axis on the controller. From there, lightburn works as I expect it to.

Thanks for the help, much appreciated.

7

No water sensor! I’ve had a lot of toruble with this controller and High/Low and polarity triggering of relays and sensors, so I’m running it pretty bare bones. Like many homemade things, don’t get it right, just get it running!