Posts made by Da Sid Mon

PEEK Spacers ... https://www.mcmaster.com/90144a130

I also am having issues with Z movement. Don't mean to Hijack the thread but I figured it would be good to include for someone looking later?

So... I'm a newbie to Duet and am wrapping up construction on a new custom built machine. I am using Duet Ethernet with an external 50VDC Step Driver and feeding this driver with Step/Dir signals from Output 7 on the breakout board. Motors are 2x NEMA 34 wired in paralell.

Z does move up and down and does so accurately in terms of units however, when a command is sent to this axis the motors rev up and accelerate to what seems like the requested feed rate (1000) and then suddenly throttle back to I what I would estimate to be (100). Axis continues to move for a few moments THEN, jumps back to full speed.

What am I doing wrong? Setting? Wiring?

Here's the drive section excerpt from my config.g

Any help is GREATLY appreciated!
; Drives
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M584 X5 Y6 Z8 E3 ; Apply custom drive mapping
M350 X1 Y1 Z1 I0 ; Configure microstepping without interpolation
M350 E16 I1 ; Configure microstepping with interpolation
M92 X100.77 Y323.66 Z424.80 E492.45 ; Set steps per mm
M566 X900.00 Y900.00 Z700 E120.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X7980.00 Y2999.60 Z2000.00 E1200.00 ; Set maximum speeds (mm/min)
M201 X500.00 Y150.00 Z15.00 E500.00 ; Set accelerations (mm/s^2)
M906 X800.00 Y800.00 Z800.00 E1250.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

That worked DC! Thank you Sir!!!

THANK YOU TIM!!!!!

Greetings! I understand the need/concept behind the enable circuit however, I'd like to know more about how it is controlled....

-What action energizes this 5VDC circuit?
-Is it possible to manually activate?
-If the answer to the previous question is yes- then how to do so? M Command?? Button on the Web interface (that I can't seem to find)?

Finally... is there any reason that I would see a reversal of polarity on this circuit? I have noticed strange behavior such as polarity reversal and also a complete loss of 5vdc even though the web interface indicates that my motors are active (note- there doesn't seem to be any indicator when enable circuit is energized so this adds to the mystery).

THANKS in advance for any insight anyone can provide!

Thank you for looking at this. I've tried multiple times to create new firmware files but I still do not get correct IP address settings. I can't imagine why this is the case? Maybe I need to clear the cache on my browser??? Weirdness.

Greeting and Salutations,

Tried the RRF Online configurator and tried to set a static IP addy on my Duet Ethernet (See attached Pic). After Upload the Board came back up with a different addy than what I assigned. Looked at my config.g and could not find a M552 with any ip addy? Weird Huh? I just edited my config file but now I'm starting to wonder what else I asked for that I'm not getting? The struggle is real yo!!

Hi All, Just got my Dues Board and ready to wire up. Looking at the Documentation I see that I have Ver 0.9 and the Docs are for 0.8. Any diff between the 2? If so- where can I get the updated Docs please??? THANK YOU!!

DUUUUUUUUUUUDE!! THANK YOU VERY VERY MUCH- That's enough to get me going! I did read that article but thought I could get by without the expansion boad- Change of plan now and I ordered one. I'll circle back and let you know about my success/failure rate LOL!

I tried using the Closed Loop Stepper Drive/motor combo from Stepperonline. Motors ran OK but from my experience these drives are not truly closed loop. There is no makeup for error and I've switched to a REAL solution. They're Great but NOT cheap (Quality usually isn't)... https://www.teknic.com/products/clearpath-brushless-dc-servo-motors/clearpath-sd/

Greetings and Salutation Duet Peeps!

Working on a retrofit on a HUGE Cartesian machine. Started out using the 8 bit "A Word" controller and am making the jump to the land of 32bit.

I am using external Motor Drives and External Relays for Heating of Bed and Extruder. The connections drawing of the Duet is pretty good however, it would be INCREDIBLY helpful if there was a drawing that showed actual devices connected.

In other words... I am having trouble determining where to connect the output signal for the heaters and the motor drives. As far as the Heat goes, I am thinking I can use the existing E0 Heater output (I'm guessing it's 12VDC) and connect to an external SSR. Same goes for the Bed... use the existing HEATED BED outputs to drive an external SSR. Does this sound like a good idea or is there someplace else I can pick up the Heater signals?. While we are talking about these outputs. Can someone please explain the nomenclature VIN. On DC outputs, I am used to seeing Positive + and Negative -. Not really sure what VIN & E0- is trying to convey-Help please!

Now, let's talk about those motor connections! I understand that I have to pick up these signals from the expansion header. However there does not seem to be outputs for X (Drive 0), Y (Drive 1) & Z (Drive 2). Expansion Header outputs start at Drive 5. Read something about using an M command to remap- OK but I have not yet found it explained anywhere that if you use external Drivers that you just lose Outputs 0 thru 2. Is this the case?

Basically my Drivers are looking for a good old fashioned Dir +, Dir -, Step + & Step -. I am assuming that the GND on the Expansion Header will be used for all my Negative - signals. Is this correct? Also are Expansion Header Ground Pins 2, 30 & 42 all tied together? (I guess I could just put a wiggy on it but, too late I've already asked LOL.

I have more questions but I'll hold short here and hopefully someone smarter than me will jump in and help light my way! Thanks in advance!