Centroid CNC Acorn running a Dyna Myte DM2400 Mill

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martyscncgarage
Posts: 9912
Joined: Tue Mar 28, 2017 12:01 pm
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CNC11: Yes
CPU10 or CPU7: Yes
Location: Mesa, AZ

Centroid CNC Acorn running a Dyna Myte DM2400 Mill

Post by martyscncgarage »

I've had the opportunity to be on the Beta test team for Acorn. I wanted to show my two machines that were used for testing Acorn.
This one is a Dyna Myte DM2400. It was previously contolled from a Windows XP machine, driving a Gecko G540 4 axis stepper driver through the parallel port. When installing Acorn, I unplugged the DB25 cable from the parallel port and plugged it into Acorn's DB25 port. Of course I had to acquire a PC running Windows, following the CPU requirements. http://www.centroidcnc.com/cnc_pc_perfo ... ments.html In my case, I used a Lenovo M92p Tiny PC, it has a 2.9ghz Intel i5 CPU, 4GB of memory, 128GB Solid State hard drive. This particular machine has the wifi option which came in handy for remote assistance using TeamViewer

I had to add a KB Electronics SI-5 to my KBIC 120 DC control board. The SI-5 is a signal isolator. It accepts the Acorn 0-10VDC analog output for spindle speed. I also had to wire the SI-5 directly to the ACORN's Analog output.

Here is an overview an explanation video:
https://youtu.be/jWTMriBlB6Q

This one shows it cutting a part. Now after the fact, I should have belted the spindle motor down to at least 1:1 but, camera was rolling and I didn't want to setup to cut another part, so I just used the Virtual Control Panel (VCP) to slow down the feed rate.
https://youtu.be/MvotXh04oZc
Forgive the rookie behind the camera! :)
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
cnckeith
Posts: 7164
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
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DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Contact:

Re: Centroid CNC Acorn running a Dyna Myte DM2400 Mill

Post by cnckeith »

Nice, thanks for posting!
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
martyscncgarage
Posts: 9912
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: Centroid CNC Acorn running a Dyna Myte DM2400 Mill

Post by martyscncgarage »

The video of the Dyna also demonstrates that a small but heavy bench top machine can make very usable parts. You just need to know the limitations of the machine, not push it as hard as 5000lb machine and have a good control ;) to help you fine tune it and make it enjoyable to use.


Marty
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
martyscncgarage
Posts: 9912
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: Centroid CNC Acorn running a Dyna Myte DM2400 Mill

Post by martyscncgarage »

I got the Acorn permanently mounted in the control cabinet.
The finned device in the lower left corner is a DC-DC converter. It takes the 48VDC from the switching power supply and steps it down to isolated 24VDC for Acorn. Space was at a preminum in the little cabinet so I went with a DC-DC converter.

Lenovo Tiny M92P pc is mounted to the cover in its carrier bracket. 2 thumbscrews and it can slide out for easy access to the control cabinet.
Attachments
DM2400.jpg
DM2400a.jpg
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
Reedfirst
Posts: 168
Joined: Wed Aug 09, 2017 1:02 pm
Acorn CNC Controller: Yes
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Oak CNC controller: No
CNC Control System Serial Number: none
DC3IOB: No
CNC11: No
CPU10 or CPU7: No
Location: Boynton Beach, Florida

Re: Centroid CNC Acorn running a Dyna Myte DM2400 Mill

Post by Reedfirst »

Very cool Marty!

I really like that little 3 axis mill. Looks like it did a great job on those parts too.
martyscncgarage
Posts: 9912
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: Centroid CNC Acorn running a Dyna Myte DM2400 Mill

Post by martyscncgarage »

Thanks,
It would have done MUCH better had I had the spindle pulley speed selected properly! :roll:
Reminder, for support please follow this post: viewtopic.php?f=20&t=383
We can't "SEE" what you see...
Mesa, AZ
cnckeith
Posts: 7164
Joined: Wed Mar 03, 2010 4:23 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: none
DC3IOB: Yes
CNC11: Yes
CPU10 or CPU7: Yes
Contact:

Re: Centroid CNC Acorn running a Dyna Myte DM2400 Mill

Post by cnckeith »

here is the hook up schematic used for this upgrade.
Attachments
S14832-ACORN CONNECTIONS TO GECKO G540 STEPPER DRIVE AND KBIC DC SPINDLE DRIVE.pdf
(108.9 KiB) Downloaded 184 times
Need support? READ THIS POST first. http://centroidcncforum.com/viewtopic.php?f=60&t=1043
All Acorn Documentation is located here: viewtopic.php?f=60&t=3397
Answers to common questions: viewforum.php?f=63
and here viewforum.php?f=61
Gear we use but don't sell. https://www.centroidcnc.com/centroid_di ... _gear.html
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