TTL (PWM) Laser head and Mesa 7i76

Yes, that kind of a breakout can be used on the 5I25s other connector.
It would need custom firmware to put at least one PWM generator on
the one or the breakout boards step/dir outputs (the spare outputs
can be more step/dir axis)

I can make this firmware if you indicate the breakout type you choose.

That would be wonderful!! What exactly you need.
The one in the image is one I have, from when it was young and ignorant, now I am not so young anymoreimage missing /media/kunena/emoticons/laughing.pngimage missing /media/kunena/emoticons/laughing.png

do you have a pinout diagram of that one?

If the info I´ve found is ok the pinout is as follow:
1-Enable
2-X step
3-Y dir
4-B step
5-A dir
6-A step
7-Z step
8-Z dir
9-Spindle
10-X limit
11-Y limit
12-Z limit
13-A limit
14-X dir
15-Input (E-stop)
16-Y step
17-B dir
18 to 25-Ground

Hi PCW, the wiring from the 5i25 P3 to DB25 conector of the BB is going to be 1 to 1? I mean pin1 from the P3 to pin1 of the DB25, pin2 to pin2, etc...

Thx very much.

Yes, you normally use a parallel printer cable for this

(if you use the HDR P2 you need a flat cable adapter from HDR26 to DB25)