What did I buy?

CNC Machines Nomad
1

Hi.
I definitely bought a new Nomad 3 product this time and received it a while ago.
But I started creaking from the beginning.

At first, I thought it would be just a problem with the limit switch, but when I thought about it a little more, I started to doubt the firmware.
In Carbide Motion, the $$ command was not used, so we checked with CNCjs.

$$
$0=10 (Step pulse time, microseconds)
$1=255 (Step idle delay, milliseconds)
$2=0 (Step pulse invert, mask)
$3=1 (Step direction invert, mask)
$4=0 (Invert step enable pin, boolean)
$5=0 (Invert limit pins, boolean)
$6=0 (Invert probe pin, boolean)
$10=3 (Status report options, mask)
$11=0.020 (Junction deviation, millimeters)
$12=0.010 (Arc tolerance, millimeters)
$13=0 (Report in inches, boolean)
$20=0 (Soft limits enable, boolean)
$21=1 (Hard limits enable, boolean)
$22=1 (Homing cycle enable, boolean)
$23=0 (Homing direction invert, mask)
$24=100.000 (Homing locate feed rate, mm/min)
$25=2000.000 (Homing search seek rate, mm/min)
$26=25 (Homing switch debounce delay, milliseconds)
$27=3.000 (Homing switch pull-off distance, millimeters)
$30=10000 (Maximum spindle speed, RPM)
$31=2000 (Minimum spindle speed, RPM)
$32=0 (Laser-mode enable, boolean)
$100=200.000 (X-axis travel resolution, step/mm)
$101=200.000 (Y-axis travel resolution, step/mm)
$102=200.000 (Z-axis travel resolution, step/mm)
$110=3800.000 (X-axis maximum rate, mm/min)
$111=3800.000 (Y-axis maximum rate, mm/min)
$112=1900.000 (Z-axis maximum rate, mm/min)
$120=270.000 (X-axis acceleration, mm/sec^2)
$121=270.000 (Y-axis acceleration, mm/sec^2)
$122=270.000 (Z-axis acceleration, mm/sec^2)
$130=250.000 (X-axis maximum travel, millimeters)
$131=250.000 (Y-axis maximum travel, millimeters)
$132=100.000 (Z-axis maximum travel, millimeters)
ok

What is this?
“$30=10000 (Maximum spindle speed, RPM)
$31=2000 (Minimum spindle speed, RPM)”
These two things came to my eyes first.

https://youtu.be/Nc7-o_nTf1U

They haven’t answered the inquiry mail I sent yet.
Now I don’t even know what to do.
Why do I have to be stressed out by this?
Is there no QC before the product is shipped?

2021-12-15 132149
2021-12-15 132149951Ă—628 51.4 KB

I asked why Machine type is nomad 883 pro and received the following answer.

“Yes, this is just a textual description of the machine in the USB lookup tables in your OS, and we haven’t yet updated that for Nomad 3.”

But it was really Nomad 883 pro.

2

That is not right, for a Nomad3, those are the settings for a Nomad883/Pro.
Have you tried re-sending the configuration to the machine ? (click the “Send Configuration Data” button on that screen you showed)

The machine may have been misconfigured before.

A side note: you can also check the $$ parameters from Carbide Motion: in Machine Settings, at the bottom of the window, click “Show Log”, this will pop-up a new window, keep that open. Now go to the MDI tab, and send $$: you should see all GRBL values being printed out in the Log window, like you saw when using CNCjs.

1 Like
3

$$
$0=10
$1=255
$2=0
$3=1
$4=0
$5=0
$6=0
$10=3
$11=0.020
$12=0.010
$13=0
$20=0
$21=1
$22=1
$23=0
$24=100.000
$25=2000.000
$26=25
$27=3.000
$30=10000
$31=2000
$32=0
$100=200.000
$101=200.000
$102=200.000
$110=3800.000
$111=3800.000
$112=1900.000
$120=270.000
$121=270.000
$122=270.000
$130=250.000
$131=250.000
$132=100.000
ok
$#
[G54:0.000,0.000,0.000]
[G55:0.000,0.000,0.000]
[G56:0.000,0.000,0.000]
[G57:0.000,0.000,0.000]
[G58:0.000,0.000,0.000]
[G59:-127.384,-108.978,0.000]
[G28:0.000,0.000,0.000]
[G30:0.000,0.000,0.000]
[G92:0.000,0.000,0.000]
[TLO:0.000]
[PRB:-2.500,-3.000,-80.915:1]
ok
$G
[GC:G0 G54 G17 G21 G90 G94 M5 M9 T0 F200 S0]
ok

As informed, it was confirmed through Carbide Motion MDI.
I don’t think anything has changed.
“Send Configuration Data” also does not change even if you try it.
I’ve done it a few times.

4

Until you hear back from support about this,

  • you can tune $30 to 24000 to unlock access to higher RPMs
  • I don’t own a Nomad3 but someone who does could post their GRBL settings for you to replicate from the MDI tab (again, until support sorts this out for you)
1 Like
5

As you can see from what I wrote earlier, I think it’s right to re-upload and use Nomad 3’s firmware.

6

To the best of my knowledge, there is a common firmware for all C3D machines (GRBL1.1 with a few tweaks), and then the machine differences are handled through custom $ values. Setting those correct $ values for a given machine is normally what the “Send Configuration Data” button should do. If it doesn’t, something is amiss, and I couldn’t tell why at this point. Hopefully support will figure it out with you, I am just trying to provide temporary workarounds to get you up and running until they respond.

2 Likes
7

Thank you for kindly letting me know.
I thought about just using it like that, but first of all, I think getting support would be the first thing to do.
All the best.

1 Like
8

I too have had quite the myriad of issues with my nomad. Had to replace the spindle 4 times…
But that is in other threads.
Luckily it seems i have the right GRBL.

$$
$0=10
$1=255
$2=0
$3=1
$4=0
$5=0
$6=0
$10=3
$11=0.020
$12=0.010
$13=0
$20=0
$21=1
$22=1
$23=0
$24=100.000
$25=2000.000
$26=25
$27=3.000
$30=24000
$31=9000
$32=0
$100=199.627
$101=199.287
$102=200.000
$110=3800.000
$111=3800.000
$112=1900.000
$120=270.000
$121=270.000
$122=270.000
$130=250.000
$131=250.000
$132=100.000
ok
$#
[G54:0.000,0.000,0.000]
[G55:0.000,0.000,0.000]
[G56:0.000,0.000,0.000]
[G57:0.000,0.000,0.000]
[G58:0.000,0.000,0.000]
[G59:-126.371,-108.514,0.000]
[G28:0.000,0.000,0.000]
[G30:0.000,0.000,0.000]
[G92:0.000,0.000,0.000]
[TLO:0.000]
[PRB:-4.999,-3.001,-92.410:1]
ok
$G
[GC:G0 G54 G17 G21 G90 G94 M5 M9 T0 F200 S0]
ok
1 Like
9

so @hmods it seems like you only need to tune $30 back to 24000 and you should be good to go.
Side note: @Nikolai you probably tweaked your $100 and $101 values as part of axis calibration, correct ? @hmods you should start with the default values of 200, as specifi calibrated values only apply to one specific machine (and should not be required)

1 Like
10

I have never touched the GRBL or the MDI sender actually.
I believe this was done during QC. There is a Calibration data card in the back of the machine with these values.
No doubt this was not done for OP.
Note: my bitsetter position is a couple mm offset to the same direction as @hmods, but not as bad and the SW position is spot on.

1 Like
11

Got it. I was not aware they did that, it makes sense. I just wanted to let @hmods know he should probably not copy those two values

1 Like
12

Thank you for your answer.
However, I don’t think we should just change the spindle speed value.
The firmware contains details such as spindle information, the set value of the stepper motor, and the set value of the limit switch, and I am confident that the firmware of Nomad 883 pro has been raised in Nomad 3.
That’s why the X-axis movement distance and position were wrong from the beginning.
I’m waiting believing that carbide 3d will give me a proper solution.
All the best.

13

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