So I bought a unused/used "buildyourcnc"

All things related to the Centroid Acorn CNC Controller

Moderator: cnckeith

drdennis
Posts: 37
Joined: Mon Oct 25, 2021 9:22 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 0927215221
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Newton, MA

Re: So I bought a unused/used "buildyourcnc"

Post by drdennis »

As for the 1422.22 steps per in. the machine I have is sprocket & chain driven, is it telling me that it takes less than 1 motor revolution to travel 1"?
Yes it does, assuming 16x microstepping (3200 for full revolution). Glad you got the math under your belt.
Cheers
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: So I bought a unused/used "buildyourcnc"

Post by cnckeith »

related reading.
viewtopic.php?f=63&t=1801
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
metalman2
Posts: 22
Joined: Sun Oct 31, 2021 3:25 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 1442FC0CB1C3-0813215081
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Re: So I bought a unused/used "buildyourcnc"

Post by metalman2 »

drdennis wrote: Wed Nov 24, 2021 4:18 pm
As for the 1422.22 steps per in. the machine I have is sprocket & chain driven, is it telling me that it takes less than 1 motor revolution to travel 1"?
Yes it does, assuming 16x microstepping (3200 for full revolution). Glad you got the math under your belt.
Cheers
So if that's the case do I need to set the axis wizard at .8888 rev per inch? Thanks for all your help by the way!
metalman2
Posts: 22
Joined: Sun Oct 31, 2021 3:25 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 1442FC0CB1C3-0813215081
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Re: So I bought a unused/used "buildyourcnc"

Post by metalman2 »

On the drive it has 8 dip switches but no information is given for switch 4 or 8. What should those be set at? I've read to leave them at factory settings but I'm not sure what that was..
metalman2
Posts: 22
Joined: Sun Oct 31, 2021 3:25 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 1442FC0CB1C3-0813215081
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Re: So I bought a unused/used "buildyourcnc"

Post by metalman2 »

drdennis wrote: Wed Nov 24, 2021 4:08 pm Yeah, that's wrong. The Acorn doc is a bit skimpy on defining the DB25 outputs but it is suggesting 5V positive logic, so you have it wired backwards. No worries the LEDs on the CW230 input just won't work like this -- no damage.
You need to feed the DB25 signals to the positive inputs and tie the two negative inputs to the ground (e.g., pin 18)
That worked... I have movement! Thanks
drdennis
Posts: 37
Joined: Mon Oct 25, 2021 9:22 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 0927215221
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Newton, MA

Re: So I bought a unused/used "buildyourcnc"

Post by drdennis »

Great, now you can play with the microstepping and current settings to get more comfortable with what those parameters do in real life. When playing, if you can still touch a motor with your hand (<70 deg C) you are OK.
Regarding the two micro switches you mentioned: 4 and 8, the doc I found contains a pretty incoherent paragraph talking about 1/2 current (while not mentioning which of the two switches controls that). Guessing based on controllers I have used, it is more likely that switch 4 controls that function. The switch allows you to cut the current in half when the motor is stopped. You should be able to play with it and feel the difference as the torque will also be cut in half.
I am guessing the other switch does not do anything. But you can always check if there is any affect. Remember to turn the power off when you play with the switches. Good luck!
Cheers
metalman2
Posts: 22
Joined: Sun Oct 31, 2021 3:25 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 1442FC0CB1C3-0813215081
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Re: So I bought a unused/used "buildyourcnc"

Post by metalman2 »

So it's up and running! Thanks everyone. I've played around with some of the conversational programming and it's great. Do I have to add the pro license to run larger programs? I'm not sure if the acorn came with that license when I purchased it. Thanks
centroidsupport
Posts: 120
Joined: Tue Sep 28, 2021 6:26 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: none
DC3IOB: Yes
CNC12: Yes
CNC11: Yes
CPU10 or CPU7: Yes

Re: So I bought a unused/used "buildyourcnc"

Post by centroidsupport »

Sorry if I missed it but I didn't see a report. Please post one. The control system serial number you show doesn't bring up anything. The report
will show everything I need to reply.
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
https://www.centroidcnc.com/centroid_di ... _gear.html
tblough
Posts: 3072
Joined: Tue Mar 22, 2016 10:03 am
Acorn CNC Controller: Yes
Allin1DC CNC Controller: Yes
Oak CNC controller: Yes
CNC Control System Serial Number: 100505
100327
102696
103432
7804732B977B-0624192192
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No
Location: Boston, MA
Contact:

Re: So I bought a unused/used "buildyourcnc"

Post by tblough »

Free version is limited to 20 Intercon blocks. Pro and Ultimate have no limit.
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.
metalman2
Posts: 22
Joined: Sun Oct 31, 2021 3:25 pm
Acorn CNC Controller: Yes
Allin1DC CNC Controller: No
Oak CNC controller: No
CNC Control System Serial Number: 1442FC0CB1C3-0813215081
DC3IOB: No
CNC12: Yes
CNC11: No
CPU10 or CPU7: No

Re: So I bought a unused/used "buildyourcnc"

Post by metalman2 »

centroidsupport wrote: Fri Dec 17, 2021 8:34 pm Sorry if I missed it but I didn't see a report. Please post one. The control system serial number you show doesn't bring up anything. The report
will show everything I need to reply.
Sorry, I'm still new at all this. Hope this is what you need!
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