Centroid Community CNC Support Forum

tuffduck wrote: ↑Mon Jul 19, 2021 7:33 am So Acorn is not a DIY solution?

Acorn is one of the best DIY solutions. That said, the Y in DIY stands for YOU. You need to read the manuals, you need to follow the instructions and procedures and you need to make proper connections.

Most, but not all are capable of doing this in a reasonable time frame, some just take longer due to their existing skillset and ability to comprehend CNC control language and procedures.

Like Marty, I suggest that you revisit all the documentation, and start over on the bench.

Yes, I am in Ontario, Canada. 110v power can range from 110v to 120v and 220v can range from 210v to 220v.

Presuming you have single phase electrical service, you should measure ~110-120VAC from each hot lead to ground and ~208-240V across both hot wires - Red and Black. You should ground the machine at the 220VAC receptacle.

To measure for variance of the ground to neutral, if you don't have a neutral in your receptacle/box, you can measure across the ground of the 220VAC receptacle and a neutral from a 120VAC outlet nearby. Here in the States, the neutral is bonded to ground only at the service entrance.

A good ground should be 5 Ohms or less to earth, many homes here in the states use a UFER ground to aid in lowering the resistance to ground.

Marty has outlined the way to debug your issue. do this, take a photo and report back the results of this simple test below.

Pull Acorn out of the cabinet.
Put it on the bench.
Connect only the power supply that came with Acorn to Acorn. (follow the instructions here... https://www.centroidcnc.com/centroid_di ... manual.pdf)
Connect the Ethernet cable that came with Acorn to your CNC PC and Acorn.
Rename your current CNCM directory, to something like CNCM - 210719
Do a FRESH INSTALL of Acorn CNC12 v4.64
Run the bench test. Run a program
Check the Error logs.
Report back

Unplugged everything, re-installed cnc12 with bench test settings and ran a program for 2-1/2 hours. Here is the latest report.

tuffduck wrote: ↑Mon Jul 19, 2021 3:37 pm Unplugged everything, re-installed cnc12 with bench test settings and ran a program for 2-1/2 hours. Here is the latest report.

No errors yet.
Did you take Acorn out of the cabinet?

Did you hand key in all your machine settings? I see them in the report. I also see your Pro license installed.

Run a program, check the logs again.
F7 Utility, F9 Logs, F1 Errors

I left the board in the case, removed the headers and used the default settings on install. I just added my license so that I could run a large file.

I am going to remove everything and start from scratch.

tuffduck wrote: ↑Mon Jul 19, 2021 6:13 pm I am going to remove everything and start from scratch.

Run Acorn and CNC12 running on the PC for several hours. Make sure you have no errors.

I would then pull the drives out of the cabinet. On a table wire them to Acorn one drive and motor at a time. Get that axis to move. Check the error logs as you go. If OK add the rest of the drives and connect to the motors. Run the machine with parts on the bench to test and watch for errors.
You do not need limit switches. Use simple home at first

Then wire in your spindle drive/motor (leave the axis drives and spindle motor on the machine.

Point is, take it one step at a time until you see the errors show up. Then you'll know what your problem is.

THEN on the bench, wire the back panel and retest everything before putting into the cabinet. No errors, put it in the cabinet.

Remember all grounds to ONE point, where the ground of your power cable comes in and lands.
Use shielded cable from Acorn to your drives. Ground one end of the drain wire. I would take it back to the one ground point.

Here is an Acorn System Schematic you can look at for some ideas, or to wire it up as the schematic shows.

Thank you.