galvo head - protocol xy2-100

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14 Jan 2026 09:51 #341362 by greg23_78
galvo head - protocol xy2-100 was created by greg23_78
Hello everyone,

I am currently considering building a metal fused bed printer.

I currently have a 500W fiber laser with a wavelength of 1064nm.

I am looking for a galvo head for printing.

I would like a printing range of 300x300, so I am considering a laser beam expander to output 18–22 mm and an SL-1064-300-420 type F-Theta lens.

As far as I understand, the ideal solution for the head would be to find one with an xy2-100 protocol to use xy2mod.
And I am aware that I need to find a computer with very low latency.
I have a Mesa 7i97t, but I assume that it is not compatible because the protocol expects a PWM. What is the best card for galvo heads?

One last thing, is it possible to calibrate the galvo head? If so, how?
 

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14 Jan 2026 11:45 #341364 by rodw
Replied by rodw on topic galvo head - protocol xy2-100
These guys got it working with mesa and it seems  the pktuart so your 7i97 should do it..
forum.linuxcnc.org/27-driver-boards/3985...ot2-firmware?start=0 

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14 Jan 2026 14:17 #341366 by greg23_78
Replied by greg23_78 on topic galvo head - protocol xy2-100
Thanks for the link. I had already looked through the thread and stopped at mesa 7i96.

However, I didn't see anything about optical correction. Is it possible to calibrate the laser with LinuxCNC, or do you have to use the manufacturer's software? 
The following user(s) said Thank You: rodw

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14 Jan 2026 15:37 #341373 by PCW
Replied by PCW on topic galvo head - protocol xy2-100
XY2-100 needs at minimum 3 differential outputs
(X data Y Data and clock) so you would likely need some
kind of daughter-card like a Mesa ENC422 that converts
single ended TTL level signals to differential signals.
in conjunction with the 7I97Ts parallel expansion port

(The converter is really just one chip (26LS31 equivalent on a small PCB)


 

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