Search found 34 matches

by wwolski
Tue Apr 06, 2021 6:18 pm
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Hi Marty,

I purchased 3 DM860E stepper drivers that handle up to 200khz pulse rate, It looks like the pulse/dir wiring is the same as in the schematic ACORN_rev4, LEADSHINE DM 856/870/1182 & 2282, can you confirm?

Thanks,
Wil
by wwolski
Thu Apr 01, 2021 4:13 pm
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Thanks, Marty Pointed that out
I have ordered new stepper drivers as per his recommendation

Thanks,Wil
tblough wrote: Thu Apr 01, 2021 3:56 pm You have drives that run at a max 75KHz. The next lower available frequency that the Acorn can generate is 40KHz.
by wwolski
Thu Apr 01, 2021 2:35 pm
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Can you recommend some drives that are compatible with my steppers?
by wwolski
Thu Apr 01, 2021 2:19 pm
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Hi Marty, I don't understand this You said that From your drive manual, the MAX Pulse signal frequency is 75hz so set Acorn Step and Direction Frequency P968 = 30 which means 40,000 Hz I have no Idea how these 2 numbers are related Thanks, Wil Based on your stepper motor information, the best operat...
by wwolski
Thu Apr 01, 2021 12:55 pm
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Hi Keith, The X and Y axes are controlled by a chain drive sprocket pitch angle drive sprocket = 0.25 14 teeth on drive sprocket SO 0.25 x 14 = 3.5" travel per revolution, so 1/3.5 = 0.2857 revolutions per inch, These values were tweaked during calibration and this machine has been cutting accu...
by wwolski
Thu Apr 01, 2021 12:05 pm
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Or a single 64volt supply since I have to buy a new supply anyway?
by wwolski
Thu Apr 01, 2021 12:01 pm
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Hi Marty,

Could I run all 3 axes off of one 48v supply? ie 600W?
by wwolski
Thu Apr 01, 2021 11:28 am
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

Hi Marty, Here's the missing info attached. Homebuilt CNC from a Greenbull kit (buildyourcnc.com) https://buildyourcnc.com/Item/cnc-machine-greenBull-v4-4X-milling The acorn, power supplies and stepper drivers are all housed in a steel server case with 6 fans for air flow. The spindle is not control...
by wwolski
Tue Mar 30, 2021 10:30 am
Forum: Centroid Acorn CNC Controller
Topic: Milling Issue
Replies: 26
Views: 7183

Re: Milling Issue

as I previously said,
ALL info will come at once
Thanks,
Wil