Setting up DUET wifi + Duex5 - help needed
-
Quick question. My z axis motors are rated at 2.1A per phase.
…
Do I therefore set M906 Z 2100 ? Just wanted to check before I blew them up!If you run them at full rated current, they will run very hot. 60% to 85% of rated current is usual.
Also, when I zero the y axis it is actually 25mm off the front of the build plate. (If I move y to +25 it is actually at '0' on the build plate) How can I set this up as to be the zero point? I also have the same issue on the x axis?
I am guessing that you have the Y endstop switch at the low end of the Y axis. In your M208 S1 command, change Y0 to Y-25. This command defines the lower axis limit, which is also the assumed position when a low-end endstop switch triggers during homing.
-
DC, yes, the y axis endstop is at the minimum - all working now
I have set the current to 1750 and seems to work. Although I think I have a loose connection as sometimes one of the motors stops and then the platform jams up! I will chase it though
Presumably to get the 'hardware' levelling using the z motors (https://www.duet3d.com/forum/thread.php?id=1203) I need to move the motors to be on independent motors drives rather than both on driver 2. I will have a crack tomorrow time permitting.
Cheers
-
Yet more (sorry) question. I have a fan in the DUET housing to blow cold air at it when/if it gets hot. This is connected to fan 7 on the DUEX5. Is there a method of applying hysteresis to control it?
on at 50degrees
off at 40 degrees -
If you put T40:50 in the M106 command, the firmware will try to control the fan with PWM between the range 40 and 50. So 39 will be off, 40 may start to turn slowly depending on how the fan reacts to PWM, 50 will be full on and 45 will be half on. This is how I have mine set and it works very well.
Edit. Otherwise with a fixed temperate eg. T40, there is 1 degree of hysteresis. That is to say, the fan will start at 40 but the temperature must drop to 39 before he fan turns off.
-
Not hysteresis, but you can set it to come on at e.g 30% at 40C rising to 100 at 50C:
M106 P# L30 H100 T40:50
where # is the fan number.
-
Not hysteresis, but you can set it to come on at e.g 30% at 40C rising to 100 at 50C:
M106 P# L30 H100 T40:50
where # is the fan number.
David,
Unless things have changed, H is the heater number is it not? Just that your example in above, conjunction with the wording might indicate that H100 is the maximum speed.
-
Yes H is the heater number. Heater 100 is the default virtual heater number for the CPU temperature.
-
Many thanks for the help. I have got most things working but have a mechanical issue on the z axis. I have redesigned and am printing (on a different print) the new parts and waiting for some others to arrive in the post! Cheers
-
Sorry for the long delay in getting back. Things always seem to take longer than hoped! However I now have the z axis working properly and the IR sensor triggering. I have a 3 z motor setup, so am hoping to do 'hardware' bed leveling as well as mesh leveling. However, I am running into a strange issue. Note, I have updated to firmware 1.21RC5, and when using the machine control tab all axis move correctly and homing of x and y works perfectly
When i call home z from the web interface the machine appears to randomly move and then all of a sudden it goes to a point that almost appears to be the probe point. During the random moves however it crashed the x axis into the hard stop and then the motor skips. I then get worried and turn it off before it breaks something!
I know it must be something i am doing but not sure what.
Any help greatly appreciated
thanks
Bed.g
M561 ; clear any bed transform; Probe the bed at 5 points
G30 P0 X40 Y280 Z-99999
G30 P1 X450 Y40 Z-99999
G30 P2 X450 Y390 Z-99999 S3config.g
; Configuration file for Duet WiFi (firmware version 1.20 or newer)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Mon Jan 01 2018 19:47:24 GMT+0000 (GMT Standard Time); General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates…
M83 ; ...but relative extruder moves
M555 P2 ; Set firmware compatibility to look like Marlin
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Configure automatic saving on power loss
M208 X0 Y-25 Z0 S1 ; Set axis minima
M208 X450 Y415 Z400 S0 ; Set axis maxima; Endstops
M574 X1 S1 ; Set active high endstops
M915 P5:6 S6 R0 ; Configure Stall endstops
M574 Y2 S3 ; Set Stall endstops
M574 Z1 S2 ; Set endstops controlled by probe
M558 P1 H5 F120 T6000 ; Set Z probe type to unmodulated and the dive height + speeds
G31 P500 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height
M557 X15:385 Y15:400 S20 ; Define mesh gridM564 H0 ; Allow movements before homing
; Drives
M569 P0 S1 ; Drive 0 goes forwards, X Axis
M569 P3 S1 ; Drive 3 goes forwards, E0
M569 P4 S1 ; Drive 4 goes forwards, E1
M569 P5 S1 ; Drive 5 goes forwards, Y Axis
M569 P6 S1 ; Drive 6 goes forwards, Y Axis
M569 P7 S1 ; Drive 7 goes forwards, Z Axis
M569 P8 S1 ; Drive 8 goes forwards, Z Axis
M569 P9 S1 ; Drive 9 goes forwards, Z AxisM584 X0 Y5:6 Z7:8:9 E3:4 ; New drive mapping
M671 X-85:620:620 Y280:40:480 S2 ; Ballscrews at centre left, front right and rear right
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation
M92 X320 Y320 Z1600 E420 ; Set steps per mm
M566 X900 Y900 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 E1200 ; Set maximum speeds (mm/min)
M201 X500 Y500 Z250 E250 ; Set accelerations (mm/s^2)
M906 X1000 Y1000 Z2100 E800 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Heaters
M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 X200 ; Set thermistor + ADC parameters for heater 1 and remap it to channel 100
M143 H1 S280 ; Set temperature limit for heater 1 to 280C; Tools
M563 P0 D0 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; Network
M550 PCTR 3DPrintR ; Set machine name
M552 S1 ; Enable network
;*** Access point is configured manually via M587
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet; Fans
M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P7 L30 H100 T10:30 ; Case Cooling fan; Custom settings are not configured
homez.g
; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool on Mon Jan 01 2018 19:47:24 GMT+0000 (GMT Standard Time)
G91 ; relative positioning
G1 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X40 Y40 F6000 ; go to first probe point
G30 ; home Z by probing the bed; Uncomment the following lines to lift Z after probing
G91 ; relative positioning
G1 Z5 F100 ; lift Z relative to current position
G90 ; absolute positioning -
If you upgraded from pre-1.19 firmware, delete any default deployprobe.g and retractprobe.g files that came on the SD card.
-
Super, it now no longer wanders around somewhat randomly! Many thanks.
To call the leadscrew adjustments i call G32, which seems to work and the console tells me the adjustments it has made, even better!The printer is quite large, X and Y approx 500mm, so can I still use mesh bed levelling also? I realise it will add wear to the ballscrews but given the size I am sure the bed will have slight curvature etc.
Then presumably I can add the G32 command, and whatever call the mesh bed at the start of each print gcode file?
-
Yes you can still use G29 mesh bed compensation after G32 bed levelling. However, some users find they need to run G32 more than once to get the bed level, if it is a long way off level to start with. Firmware 1.21 includes a "fudge factor" parameter in the M671 command to help achieve faster convergence.
-
OK, thanks. Is there an auto way of calling it multiple times, or do I just call G32 5 times at the start of the file? I have had a look at M671 but which is the fudge factor? Or do you mean this is inbuilt in the firmware?
I have another quick question on G31 - probe setup. I am using your IR probe and it is behind the nozzle (+ve y direction) and to the left of the nozzle (-ve x direction). Would this mean I need to write in the config.g file
G31 X-2.0 Y30thanks
-
Just call G32 as many times as needed (2 may be enough in normal use). Or duplicate the sequence of G30 commands in bed.g.
I'm sorry, I forgot to document the M671 F parameter in the GCodes wiki page in the Duet3D wiki. I've corrected that.
Your G30 offsets are correct because they are measured from the print head reference point to the probe, just like tool offsets are.
-
OK, many thanks for the update, I will give this a try this evening
-
@ctrdevelopments said in Setting up DUET wifi + Duex5 - help needed:
M208 X0 Y-25 Z0 S1 ; Set axis minim
Hi, I am still struggling with mesh bed leveling. If I call G32 that all seems to work, if I call it 2-3 times the changes very rapidly go to zero. However, I then call G29 and I dont seem to be able to probe the whole bed.
in config file I have
M557 X15:450 Y15:410 S50 ; Define mesh grid
However, it only probes in 100mm steps and only goes to x 352 and y 285
I have also got this in config
M208 X-8 Y-18 Z0 S1 ; Set axis minima
M208 X451 Y410 Z400 S0 ; Set axis maxima
G31 P500 X-12 Y55 Z2.5 ; Set Z probe trigger value, offset and trigger heightCheers
-
Please run M557 without parameters to check that your M557 command in config.g was accepted.
Which firmware version are you using?
-
Dc, all seems fixed now. Not sure what I changed this morning that I hadn't done previously, but it's working.
I have used all the motor outputs on the duet and the duex5. Is there a way to get anymore? I am thinking of implementing more extruder but cannot currently.
Cheers
-
You can connect 2 more stepper drivers to the CONN_LCD connector. See the wiki page on connecting external drivers.
