I want use G04, but

LightBurn Software Questions
1

I wanted to use the dwell command, so I used g04.
But no matter how hard you try, you don’t stop.
G0 X50;
G045;
G04 5000;
G0 X100;
It looks like it stopped for about 0.01 second and just goes away.

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2

Depending on the controller you have, you must type it as

G04 P5000
(P defines seconds)

Can also use
G04 5000 but this is MiliSecs

There are some flavors that allow
G04 5000.0 to define 5000 seconds

3

Have you ever actually done it?
I did what you taught me, but I can’t.
There’s a lot of people on this forum who say we shouldn’t look.
Why?

4

Again it will depend on the flavor, firmware type , and how update it is.
It works perfectly, yes on my machines.

What controller and firmware version you have exactly

You can $i in console and output

5

Your laser says candle. Not familiar with a laser of that name but there is a control software for routers with that name.
Maybe we can direct you better if we know what you are trying to accomplish.

6

Thank you.
I found it.

[VER:1.1h.20201218:]
[OPT:V,35,254]

7

My machine made by “PRTCNC”

I want the machine to move at regular intervals, pause for about seven seconds and then move again.
I’m going to repeat this several times.
I’m trying to measure something while the machine is stationary.

8

Do you think I could get some advice?

9

As a matter of fact, I’m evaluating the Lightburn trial now.
When this function is activated, I have to buy and use it.
I really need this G04 function.

10

slightly old firmware version, you should need to check if you can update it, verify with manufacturer

As i said it works as intended for me, but we could ask for official confirmation @JohnJohn any reported issue with Grbl dwell commands that you are aware?

11

Try running these commands. Position your laser in the middle of the laser and put down some material. This should show slowly incrementing dwell times in between short X movements. Does this work?

G00 G17 G40 G21 G54
G91
M3 F100 S30
M8

G1 G4 P0.2
G0 X2
G1 G4 P0.4
G0 X2
G1 G4 P0.8
G0 X2
G1 G4 P1.0
G0 X2
G1 G4 P2.0
G0 X2
G1 G4 P4.0
G0 X2
G1 G4 P8.0
M5
M2
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12

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