Centroid acorn wiring for co2 laser

[Boostedss]

Ok so this is what I’ve got so far the stepper motors are going to go to the db25. Then I have the psu type 1 what wires go to the centroid. The first 4 plug doesn’t even go to acorn well my psu has 3 doesn’t have the L

[silver2row]

If you need the pump to get wired, use GND PWR and GPIO for I/O. The DB25 can handle this I/O for the internal pump that makes the distilled water flow from the start to end of the laser. You will need a bucket or whatever you use to supply the distilled water and external pump for supplying the distilled water for a CO2 laser that is water cooled.

If you need any additional ideas, just reply. If you configure your four wire, optical switches, please send in ideas. I may rewire them to test out things.

Also, you will need a compressor and fan. The compressor will put an air supply to the laser end when utilizing the laser. The fan, which gets attached to the back of the housing of the enclosure with duct work, fans out the debris and smoke from the sintering.

There are many different types and brands out there to purchase for such a use case. Global Industrial has many or if you are an amazon shopper, they should have plenty. So, bucket, water pump, distilled water, compressor, and fan with duct work will provide a safe environment for utilizing this CO2 laser.

Seth

P.S. Boostedss, the external pump in the distilled water solution can be powered via 115v from your AC lines. I am sure you can track down an exact match. I say get a low profile pump for the distilled water. This way, less distilled water is needed to handle the cooling of the laser.

[silver2row]

Ok so this is what I’ve got so far the stepper motors are going to go to the db25. Then I have the psu type 1 what wires go to the centroid. The first 4 plug doesn’t even go to acorn well my psu has 3 doesn’t have the L

Okay.

1. Start a google photos account and post some random photos.
2. If you have two or three PSUs, okay.
3. One can power your Acorn while the other supplies the voltage and GND to the Laser.
4. Another one if necessary can control the PWR GND to the drivers.
5. Can you list your drivers and motors? If so, take photos too and place them in your google photos album.
6. Read over articles in the meantime while associating the build to the Acorn and drivers/motors.
7. A good start is here:
8. That is an older model of CNC12 but should apply to your use case and also...

That is taken directly from the PWM and GND/COM of the DB25 layout on that listed hyperlink video on Youtube.

Seth

P.S. Remember, take some photos of your drivers and motors. This way, we can configure things appropriately. It will also give me a better idea on where you are at currently and how I can help.

[silver2row]

Ok so this is what I’ve got so far the stepper motors are going to go to the db25. Then I have the psu type 1 what wires go to the centroid. The first 4 plug doesn’t even go to acorn well my psu has 3 doesn’t have the L

Also, does your original PSU on inside of the machine work with the current set up or did you replace it?

[silver2row]

This is my machine and drivers with the original Moon motors:

You can see the signal mapping, PWM set up, and the original PSU for the laser and all components.

If you have any questions about the original PSU that still works on my side of things, just ask. I have rewired everything. There is also a bench test one should make when they first get their Acorn.

Another thing to take into account here, you probably will not be utilizing all of the wires from the screw terminals on the original PSU.

Seth

P.S. Good luck, man. Just ask away. This way I can contemplate what it is you are actually asking me. Google Photos can be a friend too when asking. This way, I can visualize instead of just post English text.

https://www.centroidcnc.com/centroid_di ... term=laser

[Boostedss]

ok thank you so much. im going to draw up a wiring diagram on what i have so far and let you see if i have alot of the wires going to the right spot. but i also do not plan on powering anything on till im 100% sure it right

[silver2row]

Okay...I will be patient.

[silver2row]

First off, I would have powered the controller to do the bench test.

Secondly, I would have powered your PSU for the laser to make sure you are getting the same, exact voltages that are listed on the PSU.

1. DB25, PWM-GND to PSU for laser and/or 2. DB25, PWM to PSU for laser while the entire GND sets go to a bus bar.

Anyway, if you are still doing the wiring diagram, okay. I will keep being patient.

But again, I would make sure with an Oscilloscope and/or a DMM that everything voltage wise is reading what it says it should be reading. This goes for input and output. You have to make sure when dealing with mechanics and electrical equipment that your PSU reads and outputs whatever they have distinguished as it reading/outputting.

Seth

P.S. For instance, say I have a switch that is available for my use case. Since my H-Series has a new mechanical switch rated at 5v to 18v (or whatever really), I am attempting to test my switch and the input line of such a switch. So, on the Acorn Controller, I put one of the wires from COM on my mechanical switch to the GND and the other end of the mechanical switch to an input on the Acorn Controller. It takes 24v to turn on the Inputs from the Acorn Controller PSU for the Acorn Controller. One of the mechanical switch wires (NC) goes to input on the Acorn Controller. I know what they say in series and parallel should be used for particular methods and NO and/or NC. I am not saying go against them. I am telling you how I got mine to work. Now, with things plugged in and secondly powered on, apply the GND (COM) and then the PWR of your DMM while switching the input mechanical switch. It should show you, if you are wired correctly with a 5v supply, ~5v to ~0v while switching.

Just some ideas. It is a big deal. Messing with lasers is not for the faint of heart, especially not CO2 gas lasers with water running through them.

Anyway, if you any questions outside of the wiring like how to test something, I can help a bit. I am not 100% sure of my divisions on an older model oscilloscope I have currently... For now, it is running older firmware without a surefire way to update it. If necessary, I can try to update the older scope and see how far I get.

If you need some support on making the exchange in wiring for viewing: look here... https://www.alibre.com/buy-now/

That alibre.com link will bring you to a site that sells their licensing for their products. Anyway, I have been able to alter the Centroid Schematics with their software because Centroid offers their Schematics in DWG or PDF. I used the DWG for altering the end use case schematic.

Also...another interesting sheet is here: https://www.centroidcnc.com/centroid_di ... manual.pdf

[Boostedss]

I am so stuck I can get this pwm wiring down I can’t figure out what wires on the psu need to go to acorn board

[Boostedss]

I am so stuck I can get this pwm wiring down I can’t figure out what wires on the psu need to go to acorn board