Search found 53 matches

by wjh308
Mon Dec 11, 2023 11:30 am
Forum: Centroid Acorn CNC Controller
Topic: Can't get Z offsets to work
Replies: 5
Views: 1799

Re: Can't get Z offsets to work

Well, still can't get it to work the way I want. The danger of how I am now doing it is if I ever damage my probe, I have to reset all of my tools.
by wjh308
Sat Dec 09, 2023 5:34 pm
Forum: Centroid Acorn CNC Controller
Topic: Can't get Z offsets to work
Replies: 5
Views: 1799

Re: Can't get Z offsets to work

I figured it out, but it isn't how I used to do it. I use my probe for setting Z height on the workpiece. I know what I did wrong, I had some random number set in Zref. Fixed it by making Zref what my probe detected, set the probe height in the offset menu as 0, and each tool the difference from the...
by wjh308
Sat Dec 09, 2023 4:20 pm
Forum: Centroid Acorn CNC Controller
Topic: Can't get Z offsets to work
Replies: 5
Views: 1799

Can't get Z offsets to work

It used to work, 100% trouble free. Upgraded CNC12 and now I can only cut air. I use the Tormach TTS system in my mill and I manually measure each tool including the probe with a surface plate and height gauge. PXL_20231209_200903132.jpg The probes height is entered along with all the other tools, t...
by wjh308
Sun Jun 11, 2023 9:47 am
Forum: Centroid Acorn CNC Controller
Topic: Acorn 6 Linear Scale Specs
Replies: 7
Views: 528

Re: Acorn 6 Linear Scale Specs

I've taken my logic analyzer and figured out the pin out to convert scales from one to the other. So with the Acorn6 on a lathe, I could use the glass scales for feedback? Are there any gotchas for doing this? Will it automatically compensate for ballscrews error or will it error out instead?
by wjh308
Wed May 24, 2023 10:33 am
Forum: Centroid Acorn CNC Controller
Topic: DMM DYN4 Servo as Spindle Drive
Replies: 7
Views: 589

Re: DMM DYN4 Servo as Spindle Drive

DMM is sending me a new drive, we discovered through testing that infact the drives analog input circuitry is faulty.
by wjh308
Tue May 23, 2023 12:13 am
Forum: Centroid Acorn CNC Controller
Topic: DMM DYN4 Servo as Spindle Drive
Replies: 7
Views: 589

Re: DMM DYN4 Servo as Spindle Drive

Ok, I think my JP4 header is fried and any hope of using analog input is dead. Since RS232 works perfectly, I am going to program a STM32 Discovery board or Arduino to act as a go-between the Acorn, reading the analog inputs and sending out digital RS232 serial commands, vice versa.
by wjh308
Mon May 22, 2023 9:22 pm
Forum: Centroid Acorn CNC Controller
Topic: DMM DYN4 Servo as Spindle Drive
Replies: 7
Views: 589

Re: DMM DYN4 Servo as Spindle Drive

Ok, my spindle and drive work perfectly over RS232, discovered my DB25 connector housing was preventing the connector from fully seating. I think I might have this fixed for now. If not, is there a way to use a custom PLC to make CNC12 drive the spindle over RS232?
by wjh308
Sat May 20, 2023 10:04 pm
Forum: Centroid Acorn CNC Controller
Topic: DMM DYN4 Servo as Spindle Drive
Replies: 7
Views: 589

Re: DMM DYN4 Servo as Spindle Drive

Hold on one minute, am I supposed to install an opto-isolator or a diode between pins 22 and 10? Is this why my drive is not reversing direction? Guess it needs its 5v from pin 22?
DMM Servo drive  to  Acorn  for Spindle motor Annotation.png
by wjh308
Sat May 20, 2023 2:52 pm
Forum: Centroid Acorn CNC Controller
Topic: DMM DYN4 Servo as Spindle Drive
Replies: 7
Views: 589

Re: DMM DYN4 Servo as Spindle Drive

Have it spinning again, still not reversing direction.
by wjh308
Sat May 20, 2023 12:59 pm
Forum: Centroid Acorn CNC Controller
Topic: DMM DYN4 Servo as Spindle Drive
Replies: 7
Views: 589

Re: DMM DYN4 Servo as Spindle Drive

Ok, it is wired up, having significant issues with the drive, just not behaving like it should. Does not respond to speed inputs, will not reverse direction, now it wont even spin.