Centroid acorn wiring for co2 laser

[Boostedss]

Hey everyone. I’m needing help with wiring my acorn up to my laser. I really dont know where to begin.

Laser model: full spectrum h-series 40w
I have the complete centroid acorn kit with the db-25
Just want to see if anyone has a wiring diagram. Will post pictures of the stuff I’m working with

[silver2row]

Hey,

I received your message. I suggest taking out the four-wire, optical switches for stopping and whereabouts of the machine. Use some two-wire, mechanical switches instead for the endstops.

For some reason and this was probably just me not understanding what to do with the wiring, I could not get the optical switches to work on the set up.

Good luck and if this does not help you, okay. I can try harder.

Seth

[silver2row]

Also...the wiring is straight forward. Use the viewtopic.php?f=60&t=3397 link for Laser configurations for the Acorn.

It will help you a lot.

Seth

[Boostedss]

i wanted to see if you had a wiring diagram

[silver2row]

Oh...

Not really. You will need an E-Stop definitely, i.e. the machine will not work unless you have one set up. Let me double check...

Laser_PSU_Connect.png (7.62 KiB) Viewed 5599 times

Those photos are basics. To get you up to date on building around the Acorn, please let me know what you have done so far. And wozzers about the BBB being your controller for the older set up. I had a Stellaris for the H-Series.

Seth

[silver2row]

Also Boostedss,

I think setting up one motor at a time works to make sure you are commanding things correctly within the software and without worrying about more than one "thing" (motor) at a time. I do not know how much work you have put in yet for wiring and so on. So, maybe let me know where you are at currently and then I can assist from that point forward.

The last photo, the one that is further down, is a Cloudray. Remember, wherever you put a voltage, 5v or 12v or 24v, you will need a GND (reference voltage). That is why many people on this forum are for bus bars or common grounds for their machines.

Also, I stopped for a while producing larger builds with lasers. The 20" * 12" framed build environment is nice but I think I may switch to a more powerful build that is more open. I have this machine that needs 24" * 24" for either a laser (hopefully a galvo/fiber) or some type of more powerful diode. I may give up on the CO2 lasers. I am just not sure yet.

Anyway, again, just let me know where you are at now. I will then proceed with my working order of "plug this in here and plug that in there" ideas.

Seth

P.S. Um, also! I will get my references back for the DB25 and wiring for it. It is basic really. COM or COMMON is GND mostly and the rest of the wires are 5v for sending voltages to drivers, LEDs, and so on. I will try to make time. Just please take time out to understand I do not have unlimited time. I can keep helping. I just may not catch the listings right away.

# Update

Keep the old PSU for the laser unless already thrown out in case of it not working... And. If you are not bewildered by this idea, go ahead and test your I/O of the PSU for the laser. So, you will have three wires for the PSU from AC so you can use DC. Black is Line or Hot. White is a return Line or Neutral. Green or whatever other color you use is your GND/EARTH just in case the return/Neutral line fails. It is a back up.

Also, for your drivers (whatever drivers you intend on using and I got some very well priced Gecko drives at about $60.00 for one and I got two), use the exact methods for acquiring DIP switch use cases or if in the case of the G251 from Gecko, a correct sized resistors will need to be on each of the two drives.

# Another Update

COM and GND are the same on the DB25. I do not think you will need the DB9. It is for other things. The DB25 can handle your drives for STEP and Direction at 5v. You will need to GND the Drivers to the DB25. Also, I used a separate PSU to handle the PWR and GND of the drives. So, in total now, I have three PSUs and I have not wired the laser directly to the GND Pin near the AC lines.

# And Another Update

I used the 24v I/O for the two-wired endstop switches. So far, so good. They are mechanical. I might switch them one day... I am just not sure as of now since I am working on another machine. Anyway, just let me know whatever whenever and I can help from that point forward.

[Boostedss]

So do you power the acorn with the laser power supply or use the little one that came with it.

[Boostedss]

Also on the bbb bottom board there is a blue wire coming from end of laser tube to the board what’s that wire.

[silver2row]

Power the Acorn with the PSU that came with the Acorn. I am not sure about your older set up of the BBB with the older controller.

[Boostedss]

Ok I plan on once I get it figured out how to wire it. My plan is to make a schematic/wiring print like the ones on centroids website with fusion 360 so next time if there’s another person like me asking questions there will be a print for them