Search found 32 matches

by Richard70
Mon Oct 21, 2024 7:57 pm
Forum: Centroid Acorn CNC Controller
Topic: Windows 11 IOT
Replies: 1
Views: 585

Windows 11 IOT

Are there any problems running Acorn using Windows 11 IOT.
I'm thinking about replacing my CNC control PC and had some advice to use the IOT version of Windows that does not have a lot of unnecessary software build in.
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by Richard70
Tue Feb 15, 2022 5:35 pm
Forum: Centroid Acorn CNC Controller
Topic: Ground connection to common
Replies: 24
Views: 12268

Re: Ground connection to common

Thanks, will do that on my machine and do it for the Plasma machine.
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by Richard70
Tue Feb 15, 2022 4:48 pm
Forum: Centroid Acorn CNC Controller
Topic: Ground connection to common
Replies: 24
Views: 12268

Re: Ground connection to common

Question:
Building a Plasma CNC machine:
Two power supplies are used for the Plasma system, one for the Acorn board and THC RX and a separate +24VC for the Plasma THC TX board.
Should the common on each power supply be connected to chassis at each power supply?

I also have two separate power ...
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by Richard70
Fri Feb 11, 2022 11:29 am
Forum: Centroid Acorn CNC Controller
Topic: C1 on main acorn board burned right off the board <running now>
Replies: 24
Views: 8404

Re: C1 on main acorn board burned right off the board

Product in video (link repeated below) is one of a set of 7 embroidery tools that I make.
I also make many types of Lacemaker's tools as well.
All can be seen on my web site: http://richardpikul.com/

I don't really have a use at present for the rev 4 relay board at this time, will keep it in mind ...
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by Richard70
Thu Feb 10, 2022 9:04 pm
Forum: Centroid Acorn CNC Controller
Topic: C1 on main acorn board burned right off the board <running now>
Replies: 24
Views: 8404

Re: C1 on main acorn board burned right off the board

Did not want to claim successful operation too early, so ran the CNC machine for a couple of days of production first.
All works, just like it did before the Acorn board failed (probably my fault...).
Some photos of my CNC machine and a video showing what was being made yesterday are available here ...
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by Richard70
Mon Feb 07, 2022 10:26 am
Forum: Centroid Acorn CNC Controller
Topic: C1 on main acorn board burned right off the board <running now>
Replies: 24
Views: 8404

Re: C1 on main acorn board burned right off the board

I was not sent the relay board/ribbon cable with the replacement board. At this time I do not have a use for it.
Found the original Centroid note re using separate +5VDC and +24VDC power supplies. It states: "Acorn PCBs revision 171025 and older may fail to start properly if external voltage is ...
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by Richard70
Sat Feb 05, 2022 2:30 pm
Forum: Centroid Acorn CNC Controller
Topic: C1 on main acorn board burned right off the board <running now>
Replies: 24
Views: 8404

Re: C1 on main acorn board burned right off the board

+5VDC is connected to the following drive connections: +Pul, +Dir and encoder feedback connector VCC (pin 4). Not using enable.
On the Acorn original version I have been using, RL1 closes if E stop is released.
Had a good look at the drive manuals from Leadshine and Aut. Tech.:
Am I correct in ...
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by Richard70
Sat Feb 05, 2022 11:42 am
Forum: Centroid Acorn CNC Controller
Topic: C1 on main acorn board burned right off the board <running now>
Replies: 24
Views: 8404

Re: C1 on main acorn board burned right off the board

+5VDC is power only to the KL-8082H drive encoder circuitry.
On the Acorn Rev. 2 board (my original), if +5VDC is connected to the drive encoder circuitry before Acorn is 'ready', this somehow prevents the drive from operating.
Existing +5VDC connection:
+5VDC from power supply wired to connector H7 ...
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by Richard70
Fri Feb 04, 2022 5:45 pm
Forum: Centroid Acorn CNC Controller
Topic: C1 on main acorn board burned right off the board <running now>
Replies: 24
Views: 8404

Re: C1 on main acorn board burned right off the board

History:
Feb. 2018 connected Acorn board, found that it would not control drives.
With Marty's garage help, discovered that +5VDC to drives cannot be turned on until Acorn is powered up
Solution: +5VDC power to drives routed through RL1 on Acorn board, ensuring that Acorn is powered up before ...
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by Richard70
Thu Feb 03, 2022 9:19 pm
Forum: Centroid Acorn CNC Controller
Topic: C1 on main acorn board burned right off the board <running now>
Replies: 24
Views: 8404

Re: C1 on main acorn board burned right off the board

O.K. - I'm ashamed of myself. . . Spent years designing power supplies and power supply systems, I made a novice mistake.
I daisy chained the chassis grounds of the +24V and +5V power supplies and connected the chassis ground from the Acorn board to the +24V chassis ground (see photo 1). I'm blaming ...
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