Centroid Acorn CNC Basics - Dry Erase Board Exercise
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- Опубликовано: 11 сен 2024
- 1/11/24: ** This is an outdated video ** It is being left for informational purposes only.
If you have 5VDC Logic drives, use a DB25 Breakout board and use the DB25 Connector
I go over wiring basic components to Acorn, an Estop, a limit switch,
stepper driver, stepper motor, and power supplies on the dry erase board before moving to the bench to do the actual wiring of a sample test rig.
Excellent
Thank you so much for doing this as it has really helped me out with the wiring of my systeam for the first time
Really glad to hear it Adrian. I hope it was basic enough to grasp!
@@martyscncgarage5275 It was perfect the way you went throught it to be honest.. I had not thoight about connecting the two power supplys up like that or using a com bus, Those two parts will make the job alot easier
Good Morning Sir, I may ask you a question about acorn cnc card , Can the autonics md5-hd14 5 phase stepper motor driver be connected to acorn card? and it is the case Do you have some wiring diagram for that purpose? Thank you very Much
If it's step and direction input most likely. PLEASE post your question with pictures and link to the manual on the Centroid CNC User Forums. Will hel you there. centroidcncforum.com/viewforum.php?f=20
Thank you very much for answering me, I am going to do it Best Regards
Thanks for your informative videos! I do have a question with my Acorn setup. I have two Teknic Clear Path servos (SD-SK) wired to this board and the wiring diagram provided by Centroid shows wires for a 4-terminal e-stop while the one I have (Grizzly G-0752) only came with a one-contactor/two terminal e-stop. I am unsure where the place the ENABLE - ORG (incoming/outgoing) wires and the incoming COM and the outgoing E - STOP SIGNAL wires. Thank you sir!
Please post your question to the Centroid User support forum. Everyone will get the benefit of an answer. centroidcncforum.com/viewforum.php?f=60
@@martyscncgarage5275 Done! Thanks
Thanks for your detailed info. It helped me setting up my DIY CNC without major problems. Just one little issue: I as you proposed, I have a home AND limit switch in one circuit for each axis and used the inputs 1 to 3 for X,Y and Z respectively. Problem is that once a limit/home switch trips, the Acorn blocks the motor completely and I can not reverse the last movement. If I want to use and configure separate circuits for each home and each limit switch, I would need 6 inputs instead the 4 supported by Acorn. How to solve this problem ? Thanks so much.
Sorry for the delay. Use ONE switch for each axis. Provided they are NC switches you can SERIES them together to input 1 and set it to HOMEALL. The control will home properly and save you an input. Otherwise, you only need ONE switch for each axis and placed where you intend to home your machine. Then use HOMELIMITOK in the CNC12 Wizard. You will get faster response if you post your questions to the Centroid CNC User Forum. (I only work on and support Centroid Controls)
Marty - this is so incredibly helpful! You don't happen to have a video with the Clearpath servos do you? I didn't see one in the titles of your videos, but been trying to locate one.
Sorry, I have not done any testing with Clearpath SDSK servos. They are kind of pricey so don't want to spend the money for the sake of just testing without a purpose.
Well, this gets me 90% of the way there, so thank you! As far as servos go, they're pretty easy to wire up from what I can tell since they have most of the electronics built into the servos themselves.
Hi Marty, first let me say thanks for all of the great info that you provide. I have a PM-940m CNC machine that i just purchased. I saw in another video where a guy purchased the PM-940m CNC and you recommended that he use the Acorn card. I had purchased the Acorn card before i actually got the turnkey CNC machine as i was going to do my own build. Long story short i decided to go with the turnkey machine for now and Matt said that the nMotion card would be easy enough to change out. After looking at the schematics for the nMotion setup and the LeadShine Acorn setup i see that there are 6 inputs needed for limits as they are wired on the nMotion card. 3 for home and 3 for reference. (the nMotion card has 16 inputs). Since the Acorn recommends using the first 4 inputs for home limits, is there a way to provide 2 more limit inputs without sacrificing any of the other 4 inputs along the top part of the board? i'm not sure there is a crafty work around to keep the existing limit functionality. I appreciate any thoughts you might be able to suggest. Thanks,
You only "need" the 3 to home with soft limits take care of the other 3. That said you can series them together and put them in series with the Estop circuit as a fail safe. IF one of those limit switches trips, you will need a momentary push button placed in parallel with the Estop circuit so you can temporarily CLOSE the circuit and jog the offending axis off the limit switch. Hope this helps!
Marty, thanks for the fast response. When looking at the LeadShine schematic they illustrate the 3 limits in series after the Estop. i'm assuming that's what you are referring. i like the idea of the jog in parallel. Even though the Acorn card is limited by some of it's features, i hope the switch will be of a greater benefit with Centroid's solid history. I'm hoping i won't have any issue with switching over the VFD. The mill didn't come with any documentation on the Delta VFD and i haven't looked on the internet yet to see if i can find the doc.
I couldn't find anything on the nMotion controller. If all works well, after some time i may want to expand to one of the other boards for more features. I'm also trying to decide on moving to Clear Path or DMM servos. But that may be further down the road. Thanks again.
Delta VFDs are popular. If it's already connected to the control and the CNC software can control it you are almost there. Just download a manual and not the connections on the Deltas control terminals, so you can cross reference them to Acorn. You should take pictures of your stepper drivers and post them to the Centroid user forums for some input from other users.
Will do Marty. I've started to dig into it further and i think i have to buy a 5v power supply. From what i can see the nMotion controller is supplying the 5v connection to the LeadShine drive.
In mach, I setup my home switches in series and use one input. I am assuming you can choose the input address for each limit switch, so you would make them all the same. Again you are NC and its just looking for common on an input. Who cares if it is the same input. When the switch is triggered it will register and move the axis off the switch and close the circuit again. The homing of the axis knows which stepper to turn.
Does anyone know how to hook up a 2HSS57 to acorn
Ask your question to the Centroid Acorn User Forums. Search the model number first
THERE'S THREE RED MARKERS IN THE SHOT AND YOU'RE STILL USING THE ONE THAT DOESN'T WORK