Posts made by ScaraMan

Hi
I recently purchased the PT100 Daughterboard latest version with jumpers.
I have some issues.
The reason why I bought this board, was to connect the Ultimaker 2 heatbed to the Duet wifi.
That’s all, but when I connect it reads 2000 C for the Bed, I am using rep rap firmware2.x
I followed the instructions on the web on how to configure firmware.
The 2 wires for power go to heatbed connector on Duet wifi , and the other 2 wires I have connected to PT 100 motherboard (2 and 3 on the first connector )
The jumpers are there on both connectors.
I am only using 1 connector for the heatbed only, not for my hotend ( since that is a e3d v6 no pt100 sensor )

Can you please tell me how to fix this issue ??
How to properly configure ??

Currently under the Heater section in config file I have this

M305 P0 X200 ; set thermistor + ADC parameters for heater 0
M143 H0 S65 ; set temperature limit for heater 0 to 80C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S260 ; set temperature limit for heater 1 to 260C

hi
Yes, I have all those documents already, and have used the servos connected with Arduino uno and Arduino due.
I just want to know how can I use them with the Duet wifi ???
a sketch would be appreciated for the connections,
or since I know how to connect them to the Arduino board, is it possible to use the Arduino with the duet wifi ?? if so how ??

here are the electrical specifications

Working Voltage: 7~12VDC(Optimized 7.4V)
Rated Current: 450mA @ 7.4V : 1.7kgf.cm
Communication Link: Full Duplex Asynchronous Serial(TTL Level), Binary Packet, Multi Drop
Multi control through Servo ID: 0 ~ 253, 254(Broadcast only)
Maximum Baud Rate: 0.67Mbps
Feedback: Position, Speed, Temperature, Load, Voltage etc.
Various Control Algorithm: PID, Feedforward, Trapezoidal Velocity Profile, Velocity Override, Torque Saturator & Offset, Overload Protection, Neutral Calibration, Dead Zone

Hi Guys,
I have attached an image showing how the Herkulex smart servo is connected with an Arduino uno board ( RX is pin 11, and TX is pin 10 ), how can I connect the servo to the Duet wifi ??

Hi
I appreciate your help, thanks.
In order for the servos run, they require 7.4 VDC
I will have to use a drop down converter from 24V TO 7.4
If you have an example of the wiring or a simple sketch , that would be very
Much appreciated

Hi
I am currently building a Scara Robot and planning to use the Duet Wifi
as my hardware controller for the stepper motors X,Y and Z.
I am planning to use 2 smart servos Herkulex DRS -101 for my Robot Gripper since I already have them, and was wandering how can I implement these to work with the Duet Wifi board ???
The servos can be daisy chained

@dc42 Hi David, I am trying to get in contact with you concerning SCARA.
I have posted a link on the forum , can you please have a look at it, I need your opinion.
Thank you

here is the link
https://forum.duet3d.com/topic/14114/scara-robot-want-to-know-if-duet-wifi-is-the-right-choice?_=1580465871679

Hello all ,
I have built a Scara robot similar to JJRobots , with improved design modifications- for testing only. Once I have a board that can
Make it work , I will port it to a more high end build SCARA.
I have tried using marlin firmware to control it, but I never succeed
I am using an Ultimaker 2 controller board to run the motors and end stops only .For now. It can home the arms when I use pronterface but after that it goes
Crazy , I have tried several times, changing home offsets, scara offsets, but never work according to my setup. I give up. !
I want to know if I should get the Duet wifi for my SCARA .
I am already using the DUET wifi for my printer and I am very pleased.
I came across the Scarlett SCARA , and I noticed he’s using the DUET and works fine. I have attached a TOP VIEW with some dimensions of the SCARA and a picture, any help would be much appreciated. Thanks !

Hi guys
I have this issue where I send the g code file to the duet wifi, and all is well until it starts to print. The nozzle tip is quite a few mm above the heatbed, I cancel, start another, then its perfect. Any clue why this is ?
I have posted below, config, home all, home z, and a snippet from the beginning of the code file
; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Wed Nov 27 2019 02:27:21 GMT-0500 (EST)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"ALPHA 300" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S0 ; physical drive 0 goes backwards
M569 P1 S0 ; physical drive 1 goes backwards
M569 P2 S0 ; physical drive 2 goes backwards
M569 P3 S0 ; physical drive 3 goes backwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z1600.00 E311.00 ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z300.00 E4200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X1050 Y1050 Z1250 E1050 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X300 Y300 Z190.19 S0 ; set axis maxima

; Endstops
M574 X1 Y1 Z2 S0 ; set active low end endstops

; Z-Probe
;M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
;M557 X15:215 Y15:195 S20 ; define mesh grid

; Heaters
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S80 ; set temperature limit for heater 0 to 80C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S260 ; set temperature limit for heater 1 to 260C

; Fans
M106 P0 S1 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 H-1 ; set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned OFF

; Tools
M563 P0 S"NOZZLE " D0 H1 F0 ; 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

; Custom settings are not defined

————————————————————————————————————————

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Wed Nov 27 2019 02:27:21 GMT-0500 (EST)
G91 ; relative positioning
G1 H2 Z5 F300 ; lift Z relative to current position
G1 H1 X-305 Y-305 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-305 Y-305 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z195.19 F300 ; move Z up stopping at the endstop
G90 ; absolute positioning
G92 Z190.19 ; set Z to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

————————————————————————————————————————

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Wed Nov 27 2019 02:27:21 GMT-0500 (EST)
G91 ; relative positioning
G1 H2 Z5 F300 ; lift Z relative to current position
G1 H1 Z195.19 F300 ; move Z up until the endstop is triggered
G90 ; absolute positioning. added extra line could remove for testing
G92 Z190.19 ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 H2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

————————————————————————————————————————

;FLAVOR:RepRap
;TIME:44156
;Filament used: 9.62041m
;Layer height: 0.2
;Generated with Cura_SteamEngine 3.6.0
T0
M190 S60
M104 S210
M109 S210
M82 ;absolute extrusion mode
G90 ; Absolute Position
G28 ; Home ALL axis
G1 X30 Y30 Z170
G92 E0 ; Reset extruder
G1 X30 Y30 F4000 ;move X/Y to front of printer
G1 Z15.0 F9000 ;move the platform to 15mm
G4 5000
G92 E0 ;zero the extruded length
G1 F200 E50 ;extrude 10 mm of feed stock
G4 10000
G92 E0 ;zero the extruded length again
G4 1000
M83 ;relative extrusion mode
G1 F1500 E-6.5
;LAYER_COUNT:401
;LAYER:0
M107
G0 F7500 X165.65 Y76.023 Z0.16
;TYPE:SKIRT
G1 F1500 E6.5
G1 F900 X165.918 Y75.542 E0.00552
G1 X166.252 Y75.104 E0.00553
G1 X166.647 Y74.72 E0.00553
G1 X167.093 Y74.396 E0.00553
G1 X167.581 Y74.141 E0.00552

;FLAVOR:RepRap
;TIME:32505
;Filament used: 11.5317m
;Layer height: 0.25
;Generated with Cura_SteamEngine 3.6.0
T0
M190 S60
M104 S210
M109 S210
M82 ;absolute extrusion mode
G1 X30 Y30 Z170
G92 E0 ; Reset extruder
G1 X30 Y30 F4000 ;move X/Y to front of printer
G1 Z15.0 F9000 ;move the platform to 15mm
G4 5000
G92 E0 ;zero the extruded length
G1 F200 E50 ;extrude 10 mm of feed stock
64 10000
G92 E0 ;zero the extruded length again
G4 1000
M83 ;relative extrusion mode
G1 F1500 E-6.5
;LAYER_COUNT:181
;LAYER:0
M107
G0 F7500 X173.774 Y25.353 Z0.15
;TYPE:SKIRT
G1 F1500 E6.5
G1 F1050 X173.893 Y24.815 E0.00518
G1 X174.089 Y24.3 E0.00518
G1 X174.357 Y23.819 E0.00518
continued

Hi
I had posted previously about the fact that when I begin a print, I have some start g code that homes all axis, primes some filament and then begins to print. the problem is that when the print starts the nozzle is about 5mm above the heatbed, so I stop the job, reload the code file again, and start the print everything is fine and nozzle is at correct height. I have posted my config file and home z and home all files also. What is wrong ?

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Wed Nov 27 2019 02:27:21 GMT-0500 (EST)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"ALPHA 300" ; set printer name

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S0 ; physical drive 0 goes backwards
M569 P1 S0 ; physical drive 1 goes backwards
M569 P2 S0 ; physical drive 2 goes backwards
M569 P3 S0 ; physical drive 3 goes backwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X80.00 Y80.00 Z1600.00 E311.00 ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z300.00 E4200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E250.00 ; set accelerations (mm/s^2)
M906 X1050 Y1050 Z1250 E1050 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X300 Y300 Z190.19 S0 ; set axis maxima

; Endstops
M574 X1 Y1 Z2 S0 ; set active low end endstops

; Z-Probe
;M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
;M557 X15:215 Y15:195 S20 ; define mesh grid

; Heaters
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S80 ; set temperature limit for heater 0 to 80C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S260 ; set temperature limit for heater 1 to 260C

; Fans
M106 P0 S1 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 H-1 ; set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned OFF

; Tools
M563 P0 S"NOZZLE " D0 H1 F0 ; 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

; Custom settings are not defined

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Wed Nov 27 2019 02:27:21 GMT-0500 (EST)
G91 ; relative positioning
G1 H2 Z5 F300 ; lift Z relative to current position
G1 H1 X-305 Y-305 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F6000 ; go back a few mm
G1 H1 X-305 Y-305 F360 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z195.19 F300 ; move Z up stopping at the endstop
G90 ; absolute positioning
G92 Z190.19 ; set Z to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 S2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2.1.3 on Wed Nov 27 2019 02:27:21 GMT-0500 (EST)
G91 ; relative positioning
G1 H2 Z5 F300 ; lift Z relative to current position
G1 H1 Z195.19 F300 ; move Z up until the endstop is triggered
G92 Z190.19 ; set Z position to axis minimum (you may want to adjust this)

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 H2 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Hi guys
I have been busy trying to fine tune my printer .
I seem to have a slight problem when beginning a print job.
When i send a print , i have added a start and end code to home axes, start bed and heater temps, etc. etc.
when it begins printing, it starts off like 5mm and more above the heatbed.
i stop the print, cancel job, reload the same gcode file, run it, and then prints at the right height and everyting is correct.
i am not using a config override file, so it cannot be that which is creating this issue.
Does anyone have an idea why this is ?

Hi Guys,
The Custom printer I built has No probe ( check previous posts ), everything is working, and i am trying to do some test prints and cannot get it going correctly, i will explain..
When i calculated the limits for my z axis travel, i used the nozzle tip and a gauge of
.15 mm thick to level the heatbed at 4 positions Since I have 4 screws . When I calibrated the Z, and remember my end switch is at bottom Like the ultimaker 2 , i raised the bed through Web interface until nozzle tip touched bed with Gauge thickness 0.15 mm sandwiched in between.
I noted the value and used it for z limits in config, home z and home all .
I use Cura and First layer height is 0.3mm , send the GCode to duet , but I have to use baby steps adjustments To start Extruding !!! It’s a pain ...
Isn’t there a way just to send the GCode and it will print correctly at the correct height for the first layer???
What am I missing here ? Am I doing something wrong ?? Any suggestions would be appreciated
I read about z offset and calibration, but i have no probe.

HI
My setup for the endstop on the Z axis is similar to Ultimaker 2, the switch is triggered when heatbed reaches max
limit and its at the bottom, when it homes , heat bed lifts according to z max value set in config, and homez and home all.

Hi Guys,
I am having a problem when i begin a print. I use Cura to create the Gcode with reprap flavor.
when i send the gcode through Duet wifi, it starts the print , but distance between nozzle tip and heatbed is way off.
I have leveled my heatbed according to the bed leveling instructions on the duet website, i have 4 heatbed screw locations. And the heatbed is leveled very well. About 0.15 mm away from the tip in all 4 positions. I am not using any probe, just nozzle. My config file, for the z min max limits are as follows ( 0 and 190.15 ) mm
Can someone shed some light. Shouldnt the print start exactly at 0.15mm ( distance between nozzle tip and heatbed )
I also looked at the config file, and z offset is set at zero.

Hi
Can someone tell me which other input i can use on the duet wifi board to connect an led strip 24 volts ?
I am aware that i can use one of the 5 Fan INPUTS, unfortunately they are all occupied.
Thanks

Hi
I am new to the forum, and I would like some help , would be very appreciated.
I have built 3D printers in the past , all Cartesian style and used the ultimaker 2 controller board and marlin firmware. This time I decided to move away from that board and opted to use the duet wifi for my new style 3D printer that I have built . I am using linear rails, for the X and Y, and moving z plate with lead screw and guided pins. I have followed the steps as per the guide, first thing I did was connect all the stepper motors-NEMA 17 and the endstops, and made sure the motor directions and end stops work as I wante them too- all is good. I want to know how to level the heatbed , I am using 4 adjustable threaded m4 heatbed screws, I cannot seem to find this in the control software. Also, I was used to marlin - it had a build plate calibration built in, and would do it off the lcd screen, as well as changing material , inserting and removing, and before a print it would purge material and start the print as an ultimaker does. Now I don’t know how to do all this with the duet wifi, please shed some light , I need help.
THANK YOU
Here are some pictures I have attached, still in progress.