Advice re upgrading to Acorn from Mach3 and Ess

All things related to the Centroid Acorn CNC Controller

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dmbgo
Posts: 547
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Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by dmbgo »

How can I tell if the rating advertised by the seller is quadrature or, lines per revolution? When I try to install the encoder I purchased, will I use the rating that the seller provides, or divide / multiply by a factor of 4?
I'm very confused and concerned now.
I suspect that I will just have to try it and see.
martyscncgarage
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Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by martyscncgarage »

dmbgo wrote: Wed Aug 19, 2020 5:59 pm How can I tell if the rating advertised by the seller is quadrature or, lines per revolution? When I try to install the encoder I purchased, will I use the rating that the seller provides, or divide / multiply by a factor of 4?
I'm very confused and concerned now.
I suspect that I will just have to try it and see.
Encoders are sold as PPR.
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
Acorn CNC Controller: Yes
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Oak CNC controller: No
CNC Control System Serial Number: 0035FF8A7F34-0730203594
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Bendigo Vic Australia
Contact:

Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by dmbgo »

So, the encoder I have ordered is listed as "3600 PR" does this mean that it's 3600 PPR, 1000 lines, or 14,400 quadrature P/R? Or does it provide 900 pulses per revolution extrapolated to 3600 pulses per rev?
martyscncgarage
Posts: 9915
Joined: Tue Mar 28, 2017 12:01 pm
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Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by martyscncgarage »

You have purchased a 3600 PULSE PER REVOLUTION ENCODER
It will yield 14,400 counts because of the A, /A, B, /B pulses

Watch this short Centroid video:


Watch this video to understand the term "Quadrature" (note: he is using a "single ended" encoder Just an A and B channel):
Last edited by cncsnw on Wed Aug 19, 2020 7:04 pm, edited 1 time in total.
Reason: clarify counts vs. pulses
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 0035FF8A7F34-0730203594
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Bendigo Vic Australia
Contact:

Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by dmbgo »

Phew, thanks Matty, so it will meet the specs on the Acorrn graphic.
Thanks for that.
centroid_acorn_encoder.png
martyscncgarage
Posts: 9915
Joined: Tue Mar 28, 2017 12:01 pm
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Location: Mesa, AZ

Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by martyscncgarage »

dmbgo wrote: Wed Aug 19, 2020 6:43 pm Phew, thanks Matty, so it will meet the specs on the Acorrn graphic.
Thanks for that. centroid_acorn_encoder.png
Maybe and maybe not. You chose to by a Chinese copy of a brand name encoder at a higher resolution. Only good thing is you can change it out if it doesn't work out. You really don't know what the quality *might* be. I personally choose to by reasonable quality components from reputable sources here in the US. I use automationdirect.com a lot and have purchased Centroid's encoders as well.
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
Acorn CNC Controller: Yes
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Oak CNC controller: No
CNC Control System Serial Number: 0035FF8A7F34-0730203594
DC3IOB: No
CNC12: Yes
CNC11: No
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Location: Bendigo Vic Australia
Contact:

Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by dmbgo »

Yes, the "quality" is a gamble, but in the past I have been happy with that. If it doesn't perform per its specs, I'll get a refund and spend the $ to buy a genuine one.
dmbgo
Posts: 547
Joined: Sat Aug 15, 2020 9:21 pm
Acorn CNC Controller: Yes
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CNC Control System Serial Number: 0035FF8A7F34-0730203594
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Bendigo Vic Australia
Contact:

Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by dmbgo »

I appreciate your help and advice Matty / Marty. (Have I been calling you by the wrong name?)
martyscncgarage
Posts: 9915
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Location: Mesa, AZ

Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by martyscncgarage »

dmbgo wrote: Wed Aug 19, 2020 6:57 pm Yes, the "quality" is a gamble, but in the past I have been happy with that. If it doesn't perform per its specs, I'll get a refund and spend the $ to buy a genuine one.
You are asking us for advice, we are giving it to you.
One last piece from me. Buy once, cry once....
I have a drawer full of wasted purchases.... ;) :oops:
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
martyscncgarage
Posts: 9915
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Location: Mesa, AZ

Re: Advice re upgrading to Acorn from Mach3 and Ess

Post by martyscncgarage »

dmbgo wrote: Wed Aug 19, 2020 6:59 pm I appreciate your help and advice Matty / Marty. (Have I been calling you by the wrong name?)
Hint in my username....
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
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