@kb58 hmm, just how lumpy did your bed get due to magnets?
I've seen some extreme cases online like the one below, but have never experience anything akin to that on my own printer using the prusa 12V bed. Perhaps I have been proving sparsely enough that by luck I have missed the hotspots.
@kb58 Prusa sells the SuperPINDA as an upgrade kit for the Prusa Mini. You don't need have a Prusa mini purchase on your account in order to purchase the upgrade kit.
https://shop.prusa3d.com/en/original-prusa-mini/1399-original-prusa-mini-to-mini-upgrade-kit.html
@dc42 how do you best use that information, though? IF I am not mistaken, you still need to select a single frequency for suppression, not separate ones per axis?
Do you pick the highest amplitude, the average of the peaks, or something else?
Or is this meant for upcoming features?
@sarvan
Looks like you don't need a diode unless your Duet2 WiFi is revision 1.03 or earlier.
https://duet3d.dozuki.com/Wiki/Connecting_a_Z_probe
@dc42 I can check again, but since the X and Y steppers go through the motions (you can hear it quietly whine as if accelerating and decelerating just as expected with actual movement), I would think so.
I did get one of the extruder steppers actually moving (only on retract for some reason even with M302 P1) by double checking the wiring between the stepstick and stepper. Shouldn't have assumed all the steppers had the same pinout.
Edit: ooh, wait, maybe I have accidentally swapped En and Dir...
Edit2: Yup, not only had I turned the 3pin Dupont the wrong way around on the shield, I had also gotten the two rows on the confused on the Duet itself when connecting up E1 and E2. All steppers working now.
Mystery solved! Thank you.
Software Information
Firmware Name: RepRapFirmware for Duet
Firmware Electronics: Duet 0.6
Firmware Version: 1.26.1 (2020-02-09b1)
Web Interface Version: 1.22.6
@dc42 that was an easy change, but alas didnt help the issue.
Oh, and I also have watterott stepstick protectors on the silentstepsticks, might they be interfering?
Hi, I have added a fabscan shield with four TMC2209 silentstepsticks to my Duet 0.6/Duet shield in the hope of more drivers with less noise in operation (yes I know, get a Duet3 already).
However, when I try to move the motors on the external drivers, they only make a sound as if they were moving but do not actually budge. Motor has holding torque, so it does receive power.
I believed I had set the currents using UART, but the trim pot on the board appears to override it. I have tried setting the currents between 0.5-1.5A without any difference in behaviour except increased holding torque and slightly louder noise.
Same motor and wiring works fine connected to the main board.
I supply the fabscan shield with +5V via the Duet and +24V externally. The Duet is powered with external 12V and external 5V via the external 12V->5V converter board
TMC2209's are hooked up to step/dir/en on the Duet expansion header.
Grateful for any pointers.
config.g :
; Configuration file for Duet 0.6 (firmware version 1.17 to 1.19)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2 on Fri Aug 09 2019 23:47:07 GMT+0200 (Central European Summer Time)
; General preferences
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
; Network
{Redacted}
; Drives
M584 X5 Y4 Z1:2 E6:7 ; Remap X, Y, E0,E1 to external drivers.
M569 P0 S0 ; Physical drive 0 goes backwards
M569 P1 S1 ; Physical drive 1 goes forwards
M569 P2 S0 ; Physical drive 2 goes backwards
M569 P3 S0 ; Physical drive 3 goes backwards
M569 P4 S0 H1 T0.1 ; Physical drive 4 goes backwards
M569 P5 S1 H1 T0.1 ; Physical drive 5 goes forwards
M569 P6 S1 H1 T0 1 ; Physical drive 6 goes forwards
M569 P7 S1 H1 T0.1 ; Physical drive 7 goes forwards
M92 X80 Y53.33 Z1600.00 E817.00:817.00 ; Set steps per mm
M566 X1800.00 Y1800.00 Z12.00 E120.00:120.00 ; Set maximum instantaneous speed changes (mm/min)
M203 X3000.00 Y3000.00 Z180.00 E1200.00:1200.00 ; Set maximum speeds (mm/min)
M201 X9000.00 Y250.00 Z200.00 E250.00:250.00 ; Set accelerations (mm/s^2)
M906 X1100.00 Y1100.00 Z800.00 E1400.00:1400.00 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout
; Axis Limits
M208 X-55 Y-5 Z0 S1 ; Set axis minima
M208 X273 Y238 Z125 S0 ; Set axis maxima
; Endstops
M574 X2 Y2 Z0 S0 ; Set active low and disabled endstops
;M574 S1 ; Set active high endstops
; Z-Probe
M558 P5 I1 H5 F120 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the dive height + speeds
G31 P500 X62 Y-6 Z0.7 C-0.00208 S23.5 ; Set Z probe trigger value, offset and trigger height
;Leadscrews
M671 X-72:326 y0:0 S0.5 ;Set Z-leadscrew x-positions
M557 X20:230 Y20:180 S35 ; Define mesh grid
; Heaters
M307 H0 A103.8 C496.1 D4.0 V0.0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit and tuned PID parameters
M305 P0 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S290 ; Set temperature limit for heater 1 to 280C
M307 H1 A419.2 C265.8 D3.2 V0.0 B0 ;Set tuned PID parameters for heater 1
M305 P3 T100000 B4725 C7.060000e-8 R4700 ; Set thermistor + ADC parameters for heater 3
M143 H3 S290 ; Set temperature limit for heater 3 to 280C
M307 H3 A451.3 C269.7 D4.7 V0.0 B0 ;Set tuned PID parameters for heater 3
; Fans
M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
; Tools
M563 P0 D1 H1 ; Define tool 0
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
M563 P1 D0 H3 ; Define tool 1
G10 P1 X20 Y0 Z0 ; Set tool 1 axis offsets
G10 P1 R0 S0 ; Set initial tool 1 active and standby temperatures to 0C
M572 D0 S1.0 ; Setup pressure advance for tool 0
M572 D1 S1.0 ; Setup pressure advance for tool 1
; Custom settings are not configured
@Benny I'm not using a bunch of crimps between the PSUs as shown, just to terminate the wires and attach them to the PSU terminals.
Would tinned wire ends be better? Why?
Hi,
I'm upgrading my printer (Duet 0.6 and 12V bed, heaters etc) with some TMC2209 silentstepsticks which I intend to run on 24V.
Thus I need to wire up two PSU's.
After failing a few times to design and print a partial enclosure for the mains end of my 12V PSU and a fused mains socket and switch, I got the openbuilds powercase and a meanwell 24V PSU to go with it.
Now I'm wiring them together.
Are there any immediately obvious errors or dangers in wiring them up like this?
I noticed the powercase lacks a fuse unlike my previous mains socket. Would it be necessary to wire fuses between the N and L terminals and the mains socket? Max power draw for the PSU's are 3.4A and 4A.
Should I tie V- to mains ground also on the 24v PSU or will I then get a ground loop? (Note I don't have mains ground in the socket right now, but don't want to get bitten in the ass by if when I move.) Should I instead just tie V- together between the PSU's?
@alielsayid Isn't using four rather than three a recipe for overconstraining, bending, and potential damage?
@dc42 thank you.
I could then just leave one of the duet shield stepper drivers without a motor attached with no ill effects from driving a stepper via the stepstick attached in parallel?
I shall have to do some calculations on the power consumption.
Edit: It appears meanwell 15W 24V PSU's are of similar cost to the step-up converters. Could that be wired in parallel with a higher-wattage 12V PSU on the mains side, to not have to use a second power switch and mains cable?
Hi,
I am considering upgrading my electronics with some additional stepper drivers, preferably I would like to run silentstepsticks at 24V (for the noise reduction) while keeping the rest of the electronics at 12V
Am I correct in assuming the Duet 0.6 can never have more than eight stepper drivers, four on the board, two on the shield or four on the duex4, or up to four external (e.g. silentstepstick) drivers?
I currently have the duet shield installed. Am I correct in assuming I can just connect two TMC2209 silentstepsticks to the unused step/dir pins of the expansion header.
Am I correct in assuming I cannot add more than two without removing the shield entirely?
I would like to use the silentstepsticks for an X motor, an Y motor and an extruder motor for silent operation when only the main extruder is active. If that's not possible I will settle for the X and Y.
Would using a step-up converter like this one to power only the silentstepsticks with 24V for the lower noise level be a fundamentally bad idea? If yes, would even using a separate 24V PSU be inadvisable?
@Danal sorry, I was referring to the OP. Didn't realise how old it was.
"Requirements
DuetWifi or Duet Ethernet or Duet 2 Maestro controlled printer
RepRapFirmware v1.21 or v2.0 or higher"
Is there anything in principle preventing this from working on the older Duets, like the 0.6?
@bearer what are the drawbacks of doing it?
@bearer
yeah, but A)
I might plug the printer into such a socket in the future.
and B)
I might want to use the old 200W PSU for some other purpose in the future, and it would be nice to know if the GND-negative wire should be retained or removed.
Hi, not strictly Duet related but hopefully someone can help.
My printer was originally a Ormerod 2 with a 200W Meanwell PSU.
This had a wire connecting the negative output with mains ground.
My new Meanwell PSU has the mains connections at one end and the 12V connections at the other.
Should I connect mains ground on the PSU with the negative connector on the 12V side and thus the Duet (0.6) ground?
My printer isn't hooked up to a mains outlet with ground, if it matters.
@dc42 Thanks, that's the guide I was using.
I have been upgrading my Ormerod 2 over the years, to the point that all that now remains of the original is the duet 0.6 and power supply.
I recently (after adding a Prusa heatbed) began having lots of connectivity issues with the Duet as soon as the heaters were running, and when I did the calculations I realised that my cumulative upgrades have made the 12V 200W PSU underpowered for the system, I would need at least 335W.
I haven't been able to find any max VIN current for the Duet 0.6, only the 2A per stepper and
Would the Duet 0.6 with Duet shield and separate 5V board per Ormerod 2 specs pose a problem to simply swapping the PSU out for a 12V 350W model?
Also, these are likely symptoms of the duet being power starved, right? As opposed to giving up the ghost in general?