Posts made by Cherno Alpha

@bearer Just went through that thread, thanks for the great response.

@bearer
Thanks for the reply. You pretty much answered my question. I will use the duet 2 for now and upgrade it to a duet 3 when the necessary duet 3 products are available. By chance you wouldn't be able to hazard a time frame on when something like that would be available for example 6,12,24 month timeframe?

Hi Guys,

I am most of the way through a pretty large printer design.
I am now looking at the wiring side of it.

The machine is using ballscrews on all axes with 2 servos on the z axis and 1 each for the X and Y axis. The servos are the Teknic Clearpath Servos.
I will be powering the servos through the Teknic IDC power supplies I looked at some of the comments made by @Edkirk on what he did.

https://forum.duet3d.com/topic/8876/clearpath-servomotor-50nm-suggestion. In this build, a duet 2 was used in conjunction with the expansion board. On the expansion board, the I/O is six pin which matches the clear path setup and I know which way to wire it for that.
The issue is I would like to attempt to use the RaiseCloud solution from Raise3d, I am already very familiar with their environment and I quite like it. There is now a plug in for an RPI that works and I was looking at attempting to integrate this with the duet3, where I am becoming stuck is the wiring of the servos see the image below of the 8 pin wiring of the servo.

The image below is from @Edkirk wiring setup of his clear path servo to the duet 2 expansion board.

The issue that I am having at the moment, is how would this wire to the duet 3 expansion board? I cant use the duet 2 expansion board as it has a 50 pin cable where the duet 3 pin header is utilised by the SBC.
The Expansion board for the duet3 has 5 pins which is one less than the duet 2 expansion, I am just after a bit of guidance on where to get going. Any help would be appreciated and if more information is required, please let me know.

Thanks for your time.

Some good news but also some bad news.

Everything is working so to speak. Ran the first print, and I am getting layer shift on the X and Y axis on every layer. Different prints different direction.
I am using Ideamaker as the slicer, I do not think this is the issue, but it is information.

The X and Y axis are still controlled by the integrated steppers.
As the print continues it gets progressively worse.

See below for the config file.

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.0.4 on Tue Sep 24 2019 14:17:15 GMT+1000 (Australian Eastern Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"Unicorns are not Fucking Real" ; set printer name

; Network
M552 P192.168.1.14 S1 ; enable network and set IP address
M553 P255.255.255.0 ; set netmask
M554 P192.168.1.1 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P5 S1 ; physical drive 5 goes forwards
M569 P6 S0 ; physical drive 6 goes backwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M569 P4 S1 ; physical drive 4 goes forwards
M584 X5 Y6 Z2 E3:4 ; set drive mapping
M350 X16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation
M92 X128.25 Y128.25 Z1600.00 E425.00:425.00 ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z300.00 E1200.00:1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z5.00 E250.00:250.00 ; set accelerations (mm/s^2)
M906 X1000 Y1000 Z1600 E800:800 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 X1000 Y1000 Z500 S0 ; set axis maxima

; Endstops
M574 X1 Y1 Z1 S0 ; set active low and disabled endstops

; Z-Probe
M558 P0 H2 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X100:800 Y100:800 S200 ; define mesh grid

; Heaters
M140 H-1 ; disable heated bed
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C
M305 P2 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 2
M143 H2 S280 ; set temperature limit for heater 2 to 280C

; Fans
M106 P0 S1 I0 F500 H1 T45 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S1 I0 F500 H2 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 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
M563 P1 D1 H2 F0 ; define tool 1
G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Custom settings are not defined

A Bit of an update.

After getting my mate to spend way to much time on it troubleshooting the problematic Z axis issue, he decided to make the nema 23s just motors instead of integrated steppers. Not long after I had a fully functioning Z axis. The X and Y axes are still the integrated stepper and work well.

Printer is calibrated on the XYZ axes. Tested the extruder side as well all functioning. Only thing really left to do is put the bondtech on it and the usual bed calibrations etc. Then we are off and printing.

Thanks for all the assistance in getting this up and running.

Brad

@nhof
Thanks for the advice. I will have a look and test to see how that goes.

HOME X
This Axis is functioning correctly, so I thought I would also post this as well just to provide further information.

; homex.g
; called to home the X axis
;
; generated by RepRapFirmware Configuration Tool v2.0.4 on Tue Sep 17 2019 17:44:50 GMT+1000 (Australian Eastern Standard Time)
G91 ; relative positioning
G1 Z0 F6000 S2 ; lift Z relative to current position
G1 S1 X-1005 F3600 ; move quickly to X axis endstop and stop there (first pass)
G1 X5 F6000 ; go back a few mm
G1 S1 X-1005 F300 ; move slowly to X axis endstop once more (second pass)
G1 Z0 F6000 S2 ; lower Z again
G90 ; absolute positioning

CONFIG FILE

; Configuration file for Duet WiFi (firmware version 2.03)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v2.0.4 on Tue Sep 17 2019 17:44:50 GMT+1000 (Australian Eastern Standard Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"3DP Duet" ; set printer name

; Network
M552 P192.168.1.14 S1 ; enable network and set IP address
M553 P255.255.255.0 ; set netmask
M554 P192.168.1.1 ; set gateway
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P5 S1 ; physical drive 5 goes forwards
M569 P6 S0 ; physical drive 6 goes backwards
M569 P7 S1 ; physical drive 7 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M569 P4 S1 ; physical drive 4 goes forwards
M584 X5 Y6 Z7 E3:4 ; set drive mapping
M350 X16 Y16 Z16 E16:16 I1 ; configure microstepping with interpolation
M92 X128.00 Y128.00 Z1600.00 E420.00:420.00 ; set steps per mm
M566 X900.00 Y900.00 Z12.00 E120.00:120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z60.00 E1200.00:1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z5.00 E250.00:250.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800:800 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 X1000 Y1000 Z500 S0 ; set axis maxima

; Endstops
M574 X1 Y1 Z1 S0 ; set active low and disabled endstops

; Z-Probe
M558 P0 H0 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed
M557 X100:800 Y100:800 S200 ; define mesh grid

; Heaters
M305 P0 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 0
M143 H0 S140 ; set temperature limit for heater 0 to 140C
M305 P1 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 1
M143 H1 S280 ; set temperature limit for heater 1 to 280C
M305 P2 T100000 B4138 R4700 ; set thermistor + ADC parameters for heater 2
M143 H2 S280 ; set temperature limit for heater 2 to 280C

; Fans
M106 P0 S1 I0 F500 H1 T45 ; set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P1 S1 I0 F500 H2 T45 ; set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 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
M563 P1 D1 H2 F0 ; define tool 1
G10 P1 X0 Y0 Z0 ; set tool 1 axis offsets
G10 P1 R0 S0 ; set initial tool 1 active and standby temperatures to 0C

; Custom settings are not defined

Z HOME
; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2.0.4 on Tue Sep 17 2019 17:44:51 GMT+1000 (Australian Eastern Standard Time)
G91 ; relative positioning
G1 Z0 F6000 S2 ; lift Z relative to current position
G1 S1 Z-505 F3600 ; move Z down until the endstop is triggered
G92 Z0 ; 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 S2 Z0 F100 ; lift Z relative to current position
;G90 ; absolute positioning

@Dougal1957 , @Phaedrux
Will post the data below,

We set it to 0 after the first time we were setting the other axes it tried to drive it down. It is only at 0 till we have it sorted.

Ok, so I have installed the duet ethernet, and the expansion board to go with it.

The problem that I am encountering at the moment is with the Z axis.

X and Y home and operate perfectly.

Z is the issue.

We have been able to get Z to home. Once home, if you press + 5mm it does not operate. If I go - 5mm it tries to drive the hotend through the printer.
The Z dive height has been set to 0.

To continue testing we have to manually wind the Z axis to try something new.

Any suggestions to try would be great.

Thanks,
Brad

@nhof Just looked at the expansion board and I need to get one, problem is the Australian reps dont have any at all so will have to get them from overseas. Yay for freight charges.

The Duet has arrived, I am looking at a piezo bed levelling system for this, is it fiddly to set up and is it reliable? Alternatively what is the most user friendly bed levelling system? The bed is glass.

@bearer There will be plenty of worrying when configuring it. Never really done this type of thing before, but I have figured out most of the other things with printers. I am an expert on repairing my Raise3d machines

@bearer Is this like the Power Resume Feature?
If so, I dont use it and I am not a fan of it for two reasons.
Firstly, if you are not nearby and everything cools down, the print will lift from the bed.
Secondly, the ones that I have tried re home before commencing again. They never go back to the exact same spot and is always off just a touch.
If the print shits itself, I just restart it.

The Duet Ethernet should be here tomorrow.
A few other items I will be doing to the printer is an enclosure for the print area. Pretty important for me as I do a lot of ABS printing (helps I make my own filament as well).
The next is the Z-Probe for mapping the bed. I had a look on this site and saw the Piezo sensors. They look to be pretty much perfect for my purposes. Mapping the 1m x 1m bed is pretty important especially if there is dips in the bed. Any one used the piezo sensors? They are mentioned on this page here. https://duet3d.dozuki.com/Wiki/Choosing_a_Z_probe . Once that or similar is installed, I will probably do 15 points on the bed to map it out. Essentially one measurement every 25cm.

@nhof ,
With the expansion board [in case i need to purchase it as well], is it the cable and expansion board, or just the cable?

@nhof @T3P3Tony
Thanks for the info.
I saw that the newer ones have been changed over to duet boards, the main difference with mine i think is that my x/y/z axes are steppers rather than servos.
Looking forward to getting this done as I think it will provide a much better 3d printing experience for me. Especially with a bondtech.

@deckingman Just checked out your blog. Insane printer and good luck at the show with the Duet 3 ( Which I just learned about on your site, so thanks for that).
I might look at the Duet 3 for my scratchbuild project (when I get around to it).

@deckingman Yep, I did that with the multimeter on the wires out of the stepper to identify which two were in the same phase and I kept them paired together.
I was able to identify which ones were in the same phase on the board based on the A/B notations on the PCB.