Search found 17 matches

by ARTMEK
Mon May 16, 2022 2:28 pm
Forum: Centroid Acorn CNC Controller
Topic: Emco PC Turn 50 ATC issue
Replies: 48
Views: 23794

Re: Emco PC Turn 50 ATC issue

How is the turret doing? I'm pretty sure we have the exact same turret. Check my thread "retrofitting emco PC turn 55". Got mine working last week.
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by ARTMEK
Sat May 14, 2022 7:52 am
Forum: Centroid Acorn CNC Controller
Topic: Retrofit EMCO PC TURN 55
Replies: 7
Views: 2096

Re: Retrofit EMCO PC TURN 55

Hello again!

Thanks for the explanation. I think Emco used the proximity switch on the ballscrew as an index pulse. Seems to give me good accuracy on both axis when homing slow like 100mm/min.

I got it up and running a pawn after some hiccups with G99 and tool offsets. Still haven't got the ...
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by ARTMEK
Tue May 10, 2022 1:19 pm
Forum: Centroid Acorn CNC Controller
Topic: Retrofit EMCO PC TURN 55
Replies: 7
Views: 2096

Re: Retrofit EMCO PC TURN 55

Back again with some updates:

3. Got the homing working and added M18 in the end of the homing macro to have the turret initialize also. What does the L1 in the homing macro mean?
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by ARTMEK
Sat May 07, 2022 5:06 pm
Forum: Centroid Acorn CNC Controller
Topic: Retrofit EMCO PC TURN 55
Replies: 7
Views: 2096

Re: Retrofit EMCO PC TURN 55

Back again with some updates:

1. Got the VFD working, no problem there but I need to get back to it when installing the encoder and aim for rigid tapping. I get the spindle up to 3k rpm and can stop in about 1sec.

2. Got the original steppers drivers up and running 3000mm/min with enough torque ...
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by ARTMEK
Mon May 02, 2022 5:40 am
Forum: Centroid Acorn CNC Controller
Topic: Retrofit EMCO PC TURN 55
Replies: 7
Views: 2096

Re: Retrofit EMCO PC TURN 55

Thank you Chris,
I was so sure I did it right first time so started looking elsewhere..

I did as you suggested and now it works fine!
I think I did something sketchy when trying to make a custom profile and load it in the wizard.

#850 - 0.5
#851 - 0.6
This gives me fast tool changes and seems to ...
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by ARTMEK
Thu Apr 28, 2022 5:13 pm
Forum: Centroid Acorn CNC Controller
Topic: Retrofit EMCO PC TURN 55
Replies: 7
Views: 2096

Retrofit EMCO PC TURN 55

Hello!

I got hold of an EMCO PC TURN 55 that I wanted to upgrade with an Acorn. I had much success last time with a milling machine so time for a lathe!

I've gathered some information around here now to get started and I have some sort of plan and what needs to get done in no particular order ...
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by ARTMEK
Mon Apr 22, 2019 8:39 am
Forum: Centroid Acorn CNC Controller
Topic: Driver alarm Step- servo driver 2HSS57
Replies: 3
Views: 1440

Re: Driver alarm Step- servo driver 2HSS57

Here:
20161028170136_71159.pdf
(432.56 KiB) Downloaded 98 times
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by ARTMEK
Mon Apr 22, 2019 8:36 am
Forum: Centroid Acorn CNC Controller
Topic: Hybrid Step-Servo input
Replies: 7
Views: 2430

Re: Hybrid Step-Servo input

Worked great like above!
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by ARTMEK
Wed Apr 10, 2019 2:56 am
Forum: Centroid Acorn CNC Controller
Topic: Driver alarm Step- servo driver 2HSS57
Replies: 3
Views: 1440

Driver alarm Step- servo driver 2HSS57

Hi,
looks to me the Alarm output is normally open so I have to connect in parallel to the Acorn inputs?
Similar to hookup S14941.DWG I guess?

http://www.jmcdriver.com/products.php?cid=225&id=159
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by ARTMEK
Thu Mar 28, 2019 1:26 pm
Forum: Centroid Acorn CNC Controller
Topic: Hybrid Step-Servo input
Replies: 7
Views: 2430

Re: Hybrid Step-Servo input

Thanks for replying so fast!

So here is the full PDF:
Manual 2HSS57.pdf
(432.56 KiB) Downloaded 111 times
The first picture I posted propose 5V, 12V or 24V signal if using resistor. Still don't understand why i must use the DB25.

Best
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