Search found 2164 matches

by Gary Campbell
Tue Mar 26, 2024 8:44 pm
Forum: Centroid Acorn CNC Controller
Topic: Setting up a 4th axis travel
Replies: 9
Views: 318

Re: Setting up a 4th axis travel

This may help a bit...
1 rev per minute = 360°/min
1 rev per second (60 rpm) = 21,600°/min

Depending on your hardware neither one of the above are considered very fast. I routinely set my max rate at 144,000°/min for low reduction wood cutting, with fast jog at 7200 and slow jog at 720
by Gary Campbell
Thu Mar 21, 2024 5:12 pm
Forum: Centroid Acorn CNC Controller
Topic: Setting up a 4th axis travel
Replies: 9
Views: 318

Re: Setting up a 4th axis travel

2.5 to 1 is seldom enough reduction to return good results. That said, you need to know exactly what the reduction ratio is. Divide that number by 360 and you will have your turns per degree.

For example for 2.5 to 1 reduction: 2.5/360 = 0.006944
by Gary Campbell
Tue Mar 19, 2024 7:55 pm
Forum: Centroid Acorn CNC Controller
Topic: acorn to ahha!
Replies: 8
Views: 354

Re: acorn to ahha!

Due to the age of those drives there is no guarantee that they will work properly when connected to a modern controller. That said, after looking over the provided manual, all the info for connection, including the use of pull up resistors is in there. Connect to the step/direction pins and common o...
by Gary Campbell
Sat Mar 16, 2024 8:44 am
Forum: Centroid Acorn CNC Controller
Topic: No motor movement
Replies: 7
Views: 250

Re: No motor movement

Connect those LeadShine (clone) drives to the DB25 connector and make sure that you do not connect to the enable pin on the drive
by Gary Campbell
Sat Mar 09, 2024 9:25 am
Forum: Centroid Acorn CNC Controller
Topic: CNC CONTROL SUGGESTIONS
Replies: 28
Views: 839

Re: CNC CONTROL SUGGESTIONS

Yours is a pretty straightforward tangential cutter application. As long as you have a CAM program that can output the C axis positions, I see no obstacles. There are numerous options for customization with the Centroid system. Both virtual (onscreen) and physical buttons. Here's one I did a few yea...
by Gary Campbell
Wed Mar 06, 2024 10:07 pm
Forum: Centroid Acorn CNC Controller
Topic: 24v input issue <resolved, short to ground by foil>
Replies: 14
Views: 364

Re: 24v input issue

It looks like you are connecting to a 24v com terminal on the power block. The 24v(+) terminals are the 2 on the far right
by Gary Campbell
Thu Feb 22, 2024 10:12 pm
Forum: Centroid Acorn CNC Controller
Topic: MDI Spindle Voltage Incorrect
Replies: 5
Views: 213

Re: MDI Spindle Voltage Incorrect

Have you tried adding a 0.1mfd capacitor across the Acorn analog terminals?
by Gary Campbell
Thu Feb 22, 2024 8:57 am
Forum: Centroid Acorn CNC Controller
Topic: MDI Spindle Voltage Incorrect
Replies: 5
Views: 213

Re: MDI Spindle Voltage Incorrect

If you wish your analog voltage to be linear, set the wizard rpm minimum to zero. Then set your desired minimum speed in the VFD parameters (Htz Min)
by Gary Campbell
Tue Feb 20, 2024 10:42 pm
Forum: Centroid Acorn CNC Controller
Topic: Strange noise issue.
Replies: 5
Views: 190

Re: Strange noise issue.

Shopvacs and their PVC hoses are some of the worst static generators out there. Look this over, it may help