Eleksmaker a3 Lightburn Setup Servo Mode

Hello, does anyone already have experience with the Eleksmaker a3 “Lightburn Setup” (Servo Mode) or is this mode not set? Would like to draw on Rotary engraving with a pen. Could GRBL change that?

I haven’t tried this, but I believe servo mode just uses the “power” parameter to control the pen height. You’d use the GRBL-M3 device to drive it, and find a power value that put the pen at the correct height for you.

Thanks for the info, where can I adjust the power of the laser here?

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$0=10 (step pulse, usec)

$1=25 (step idle delay, msec)

$2=0 (step port invert mask:00000000)

$3=0 (dir port invert mask:00000000)

$4=0 (step enable invert, bool)

$5=0 (limit pins invert, bool)

$6=0 (probe pin invert, bool)

$10=3 (status report mask:00000011)

$11=0.010 (junction deviation, mm)

$12=0.002 (arc tolerance, mm)

$13=0 (report inches, bool)

$20=0 (soft limits, bool)

$21=0 (hard limits, bool)

$22=0 (homing cycle, bool)

$23=0 (homing dir invert mask:00000000)

$24=25.000 (homing feed, mm/min)

$25=500.000 (homing seek, mm/min)

$26=250 (homing debounce, msec)

$27=1.000 (homing pull-off, mm)

$100=80.000 (x, step/mm)

$101=80.000 (y, step/mm)

$102=400.000 (z, step/mm)

$110=5000.000 (x max rate, mm/min)

$111=5000.000 (y max rate, mm/min)

$112=5000.000 (z max rate, mm/min)

$120=200.000 (x accel, mm/sec^2)

$121=200.000 (y accel, mm/sec^2)

$122=200.000 (z accel, mm/sec^2)

$130=5000.000 (x max travel, mm)

$131=5000.000 (y max travel, mm)

$132=5000.000 (z max travel, mm)

Not there, here:
image

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You’ll also want to change the “S-Value Max” number in Edit -> Device Settings to 255:
image

Hello, Thanks for the right information, unfortunately, the servo does not respond correctly. It raises and lowers but not error-free to the text I have entered. There is no real interruption.

Can you say that again differently? I don’t understand - it raises and lowers, but … isn’t that all that is required?

Yes it rises and hums partially quit (electronically?). It does not go down regularly and back up as it should be and does not paint properly.

Well, I don’t have one of these units, or know anything about it really, so you will have to experiment a bit to figure out what commands you need to emit to the machine to make it move the correct way. If you can find out what those are, I can help with getting LightBurn to send them.

Yes, I’ll keep trying.Thank you for the fast communication / assistance.

I have been playing with LightBurn and an EleksMaker EleksDraw . . . see my post here LightBurn & GRBL Interface (Streaming a G-Code Program to Grbl) problem

I managed to successfully get the EleksMaker driven by an EleksMaker Mana SE controller working with LightBurn and it works really well! To get this working properly, I updated the controller to the latest version of GRBL firmware (V1.1f) which is relatively straightforward if you have some basic arduino/firmware background. It is then as simple as plug it in and follow the simple LightBurn instructions on setting up your device. There are lots of great videos to help you with this, and using LightBurn, on the LightBurn web site.

With a laser it works very well, but I also wanted to use it with a pen and a vinyl cutter (a simple inexpensive drag knife). To do this, I needed to install a version of the GRBL firmware that supports the RC Servo mechanism on the Z-Axis. I have got this working . . . but there is still a small issue with lifting the servo between cuts/pen strokes (above link explains/documents thsi).

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