New Build: Emco PC5 CNC Lathe

All things related to the Centroid Acorn CNC Controller

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martyscncgarage
Posts: 6687
Joined: Tue Mar 28, 2017 12:01 pm
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Location: Mesa, AZ

Re: New Build: Emco PC5 CNC Lathe

Post by martyscncgarage »

Part 6, Basic bench test of a Leadshine Closed Loop stepper drive and motor.
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
martyscncgarage
Posts: 6687
Joined: Tue Mar 28, 2017 12:01 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
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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: New Build: Emco PC5 CNC Lathe

Post by martyscncgarage »

Part 7, Cabinet is wired and complete. Overview of the work and using CNC4PC.com's C86Acorn and C34 boards.
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
GBCues
Posts: 85
Joined: Tue Aug 14, 2018 10:49 am
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CNC11: No
CPU10 or CPU7: No
CNC Control System Serial Number: noneC120192
Location: Denver, CO

Re: New Build: Emco PC5 CNC Lathe

Post by GBCues »

Hi Marty,
Another great video, thanks!
A couple of questions:
I too use an E-Stop contactor, but I have run my Line through the contact, not Neutral/Common. I'm wondering what the difference is.
I keep hearing about using "snubbers" but have never seen such a device advertised (at least by that name). They are to prevent arcing and fusing of the coil contacts in this case. Is that right?
And if you've covered these topics elsewhere, just point me in that direction.
Thanks again,
Gary
martyscncgarage
Posts: 6687
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: New Build: Emco PC5 CNC Lathe

Post by martyscncgarage »

GBCues wrote: Thu Nov 12, 2020 12:31 pm Hi Marty,
Another great video, thanks!
A couple of questions:
I too use an E-Stop contactor, but I have run my Line through the contact, not Neutral/Common. I'm wondering what the difference is.
I keep hearing about using "snubbers" but have never seen such a device advertised (at least by that name). They are to prevent arcing and fusing of the coil contacts in this case. Is that right?
And if you've covered these topics elsewhere, just point me in that direction.
Thanks again,
Gary
Gary
Search Quencharc on Centroid's page (its toward the bottom)
https://www.centroidcnc.com/centroid_di ... nents.html
There is a description and tech bulletin of their use.


Running the axis motor load across two contacts spreads the load across two contacts instead of one.
Also, when it comes to DC, the contactors are rated differently. 24VDC is hardly worth worrying about but 48VDC and up to 180VDC you must use correctly rated contactors.

Hope this helps a little bit...
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
GBCues
Posts: 85
Joined: Tue Aug 14, 2018 10:49 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: noneC120192
Location: Denver, CO

Re: New Build: Emco PC5 CNC Lathe

Post by GBCues »

Helpful as always
Thanks!
Gary
martyscncgarage
Posts: 6687
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: New Build: Emco PC5 CNC Lathe

Post by martyscncgarage »

This was an impromptu video. Kind of an overview of setting up the X and Z axis overall turns ratio and lash comp on the small Emco PC5 lathe

Marty

Emco PC5 Centroid CNC Acorn Conversion: Part 8 Setting Z & X Overall Turns Ratio and Lash Comp

Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
martyscncgarage
Posts: 6687
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: New Build: Emco PC5 CNC Lathe

Post by martyscncgarage »

Part 8: Going over the Wizard settings for the PC5 and a brief overview of other features.
This is an unedited video. Be nice :P

I try to go over the Wizard settings for the Emco PC5, using the CNC4PC C86Acorn board and Leadshine CS-D508 closed loop steppers, a 1000 line encoder, and a VFD. I touch on some of the other Wizard settings.

Using these settings would give those setting up a PC5 a starting point. Keep in mind your overall turns ratio may change depending on the pulley tooth count you use on the motor to ball screw (overall turns ratio)

I have also attached my report created after doing this video. Conceivably, you could RESTORE it to your machine if you are doing the exact same build, and only have to import your license, and tweak your Overall Turns Ratio and Lash settings, possibly soft limit travels slightly.

Attachments
report_0035FF8A1655-0827203666_2020-11-21_06-58-14.zip
(589.98 KiB) Downloaded 1 time
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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