Search found 74 matches
- Wed Mar 06, 2019 1:28 pm
- Forum: Centroid Acorn CNC Controller
- Topic: DMM ZRI Homing using only two inputs
- Replies: 10
- Views: 5412
Re: DMM ZRI Homing using only two inputs
Just to double confirm, I have my home switches in series, using only one input for the home and it works well. I also have the ZRI input “ganged” together so it only uses one more input. And The only requirement is that the home file can instruct to do each axis individually and, as slodat said , t...
- Fri Mar 01, 2019 5:14 am
- Forum: Centroid Acorn CNC Controller
- Topic: The "Ruppe" Test: DMM DYN4 Encoder signals piped into Acorn's Spindle Encoder
- Replies: 8
- Views: 3619
Re: The "Ruppe" Test: DMM DYN4 Encoder signals piped into Acorn's Spindle Encoder
Thanks Marty, I was able to test my Dyn4 drives using the "Ruppe" method :) and all seems to be good at 120 ipm. I shot a quick video just for fun ( 80ipm ). ( I'm still finishing the rewiring, so forgive the messy electronics cabinet ) Thanks for the details about grounding. One more ques...
- Thu Feb 28, 2019 12:46 pm
- Forum: Centroid Acorn CNC Controller
- Topic: The "Ruppe" Test: DMM DYN4 Encoder signals piped into Acorn's Spindle Encoder
- Replies: 8
- Views: 3619
Re: The "Ruppe" Test: DMM DYN4 Encoder signals piped into Acorn's Spindle Encoder
Hey Marty, Thanks for making the video. Any chance you could include the wiring diagram for the cable specific to the DYN4 and Acorn ? Cheers, Jake I can, but its pretty straight forward. Go to the DMM DYN4 manual, look for the DB9 connector, it has the encoder output signals, match them up to the ...
- Thu Feb 28, 2019 2:02 am
- Forum: Centroid Acorn CNC Controller
- Topic: Part II: Converting Chinese CNC Router from Open Loop Steppers to DMM DYN4 Servos
- Replies: 30
- Views: 9748
Re: Part II: Converting Chinese CNC Router from Open Loop Steppers to DMM DYN4 Servos
Awesome. Congrats !
Jake
Jake
- Wed Feb 27, 2019 11:27 pm
- Forum: Centroid Acorn CNC Controller
- Topic: The "Ruppe" Test: DMM DYN4 Encoder signals piped into Acorn's Spindle Encoder
- Replies: 8
- Views: 3619
Re: The "Ruppe" Test: DMM DYN4 Encoder signals piped into Acorn's Spindle Encoder
Hey Marty,
Thanks for making the video. Any chance you could include the wiring diagram for the cable specific to the DYN4 and Acorn ?
Cheers,
Jake
Thanks for making the video. Any chance you could include the wiring diagram for the cable specific to the DYN4 and Acorn ?
Cheers,
Jake
- Tue Feb 26, 2019 7:14 pm
- Forum: Centroid Acorn CNC Controller
- Topic: Another DYN4 and Acorn Losing Steps Issue
- Replies: 77
- Views: 24291
Re: Another DYN4 and Acorn Losing Steps Issue
Question, which cabling did you use from the DB25 ? Could it be a shielding issue due to using different cables ?
Just checking...
Jake
Just checking...
Jake
- Tue Feb 26, 2019 1:18 pm
- Forum: Centroid Acorn CNC Controller
- Topic: Another DYN4 and Acorn Losing Steps Issue
- Replies: 77
- Views: 24291
Re: Another DYN4 and Acorn Losing Steps Issue
alternatively, if someone doesn't have resistors on hand and wants to experiment, apparently this was an early method of wiring the DYN4 to Acorn. Maybe someone can jump in and explain why it isn't used anymore ? I got this from someone that said it worked fine for him for over a year but he may not...
- Tue Feb 26, 2019 12:29 pm
- Forum: Centroid Acorn CNC Controller
- Topic: Another DYN4 and Acorn Losing Steps Issue
- Replies: 77
- Views: 24291
Re: Another DYN4 and Acorn Losing Steps Issue
I’m wondering if the problem is the 2k pull down resistor in the DMM DB25 cable shares between the step and direction circuits not pulling down enough for both? Or the 24v screw terminal connections vs 5v db25 connections? I sincerely appreciate the help, I obviously need it. Thank you! Steven If y...
- Mon Feb 25, 2019 10:36 pm
- Forum: Centroid Acorn CNC Controller
- Topic: Weird movement / output to DYN4 - slow jerky rotation
- Replies: 2
- Views: 1658
Re: Weird movement / output to DYN4 - slow jerky rotation
Add a ground jumper from either the DYN4's DB9 (JP5) or DB25 (JP4) nut to the ground terminal on the DYN4. See enclosed picture, the nut is partially obscured in the picture. The black wire with red arrows pointing to the connection points. I am fairly certain your issue will vanish. p.s. hopefully ...
- Mon Feb 25, 2019 1:49 pm
- Forum: Centroid Acorn CNC Controller
- Topic: Another DYN4 and Acorn Losing Steps Issue
- Replies: 77
- Views: 24291
Re: Another DYN4 and Acorn Losing Steps Issue
What is the fault "code" you are seeing ( from your second video ) ?