Optiturn 2506 conversion.

All things related to the Centroid Acorn CNC Controller

Moderator: cnckeith

b_laauwen
Posts: 10
Joined: Sun Aug 18, 2019 9:32 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 780473490CB7-0701192221

Optiturn 2506 conversion.

Post by b_laauwen »

Hi all. I am starting conversion of an optiturn 2506v lathe. I have most of the items on order now. I am having some trouble working out what speed controller to use for the spindle. Has anyone else done a conversion of this machine on here.

Thanks in advance.
martyscncgarage
Posts: 7180
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Location: Mesa, AZ

Re: Optiturn 2506 conversion.

Post by martyscncgarage »

b_laauwen wrote: Mon Nov 23, 2020 4:40 pm Hi all. I am starting conversion of an optiturn 2506v lathe. I have most of the items on order now. I am having some trouble working out what speed controller to use for the spindle. Has anyone else done a conversion of this machine on here.

Thanks in advance.
Please provide details of the machine. Pictures of the current spindle drive, what it is, link to a manual.
The more info you provide, the better the chance of getting responses.

Good luck with your project.
Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
b_laauwen
Posts: 10
Joined: Sun Aug 18, 2019 9:32 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 780473490CB7-0701192221

Re: Optiturn 2506 conversion.

Post by b_laauwen »

Thanks Marty. I shall do that as soon as i get delivery of the lathe. Its currently on backorder.
b_laauwen
Posts: 10
Joined: Sun Aug 18, 2019 9:32 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 780473490CB7-0701192221

Re: Optiturn 2506 conversion.

Post by b_laauwen »

Well finally my lathe arrived. Now to work out what can be done to have the acorn control spindle.
20201202_183350.jpg
20201202_202034.jpg
20201202_205928.jpg
20201202_210225.jpg
20201202_213629.jpg
b_laauwen
Posts: 10
Joined: Sun Aug 18, 2019 9:32 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 780473490CB7-0701192221

Re: Optiturn 2506 conversion.

Post by b_laauwen »

[/quote]

Please provide details of the machine. Pictures of the current speed drive, what it is, link to a manual.
The more info you provide, the better the chance of getting responses.

Good luck with your project.
Marty
[/quote]

Hi again. Been doing some research and I am leaning towards the kbsi 240d to control the spindle, or is there an easier way to do this?
martyscncgarage
Posts: 7180
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Location: Mesa, AZ

Re: Optiturn 2506 conversion.

Post by martyscncgarage »

Spindle controller looks like a knock off of a KB Electronics KBIC Control. Did you get documentation for it?
You are going to need a KBSI240D at the very least. You need the isolation. Look up the KB120 schematic set in the Acorn Package.
The KBSI240D is not difficult to setup. Follow the directions. BUT you need your documentation. DO NOT expect to retain any original Speed Pots. Let CNC12 control the spindle speed.

If you find the equivalent KB Electronics controller, I would probably use it. Honestly, I personally go with a 3 phase motor and a VFD.....

Buy a good spindle encoder as well if you want to do CSS, rigid tap and threading. 1000line is fine. I have had good luck with those from Automationdirect.com
You want 5VDC Line Driver/Differential. If you can use the cable that comes with it great. If you have to make an extension, use the PROPER type cable.

Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
DICKEYBIRD
Posts: 532
Joined: Sat Jul 08, 2017 7:38 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: n/a yet
Location: Collierville, TN USA

Re: Optiturn 2506 conversion.

Post by DICKEYBIRD »

Hello b_laauwen,

If you're looking at using a KB speed control for your project, take a look at the KBCC-125R unit. It combines an "anti-plug" reversing relay", a heat Sink and dynamic braking resistor all in one package for 1.5 HP (120v) and 3.0 HP (240v) PM or shunt wound DC motors. I have 2 of I got off ebay for cheap and they're great. I have the KBSI-240D's isolators on both Acorn installations as well.

Here's a thread that has some info if your interested in trying one of them: viewtopic.php?f=60&t=1594&hilit=kbcc+125r+SCHEMATIC
Milton in Collierville, TN

"Accuracy is the sum total of your compensating mistakes."
martyscncgarage
Posts: 7180
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes
CNC Control System Serial Number: none
Location: Mesa, AZ

Re: Optiturn 2506 conversion.

Post by martyscncgarage »

DICKEYBIRD wrote: Thu Dec 03, 2020 11:22 am Hello b_laauwen,

If you're looking at using a KB speed control for your project, take a look at the KBCC-125R unit. It combines an "anti-plug" reversing relay", a heat Sink and dynamic braking resistor all in one package for 1.5 HP (120v) and 3.0 HP (240v) PM or shunt wound DC motors. I have 2 of I got off ebay for cheap and they're great. I have the KBSI-240D's isolators on both Acorn installations as well.

Here's a thread that has some info if your interested in trying one of them: viewtopic.php?f=60&t=1594&hilit=kbcc+125r+SCHEMATIC
He's BAAaack!
Good to see you back Dickeybird!
He gives good advice. I'm not sure how good that Chinese knock off is.....

Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
DICKEYBIRD
Posts: 532
Joined: Sat Jul 08, 2017 7:38 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: n/a yet
Location: Collierville, TN USA

Re: Optiturn 2506 conversion.

Post by DICKEYBIRD »

martyscncgarage wrote: Thu Dec 03, 2020 2:44 pm He's BAAaack!
Good to see you back Dickeybird!
I never left Marty; I just got distracted for a bit. ;) I had another stroke in February, recovered pretty well in a couple months, went back to work, got real busy there & busy at home making parts for my buddy's company. Between that, a bunch of doctor visits & life in general I haven't touched any fun Acorn stuff lately.

I've been keeping up with you guys on the forum every day though with the hope of staying in touch & getting back to where I left off on my ORAC pretty soon now. :D
Milton in Collierville, TN

"Accuracy is the sum total of your compensating mistakes."
b_laauwen
Posts: 10
Joined: Sun Aug 18, 2019 9:32 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
MPU11 & GPIO4D -w/ 3rd Party Drives: No
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: 780473490CB7-0701192221

Re: Optiturn 2506 conversion.

Post by b_laauwen »

DICKEYBIRD wrote: Thu Dec 03, 2020 10:33 pm
martyscncgarage wrote: Thu Dec 03, 2020 2:44 pm He's BAAaack!
Good to see you back Dickeybird!
I never left Marty; I just got distracted for a bit. ;) I had another stroke in February, recovered pretty well in a couple months, went back to work, got real busy there & busy at home making parts for my buddy's company. Between that, a bunch of doctor visits & life in general I haven't touched any fun Acorn stuff lately.

I've been keeping up with you guys on the forum every day though with the hope of staying in touch & getting back to where I left off on my ORAC pretty soon now. :D
Glad to hear you recovered ok Dickeybird. I ordered the kbsi 240d to begin with. See how that goes for starters. If need be I will look at getting what you recommended.
Post Reply